Lens Patents by Country and Assignee — Surface & Stop

Lens Patents by Country and Assignee960 unique source patents represented in the Surface & Stop catalog. Country identifies the publication authority at the start of each patent number; WO publications appear under International (WIPO).
Jointly assigned patents appear in each named assignee section. Patents without a published assignee are collected under “No named assignee or applicant.” Patent numbers open their worldwide Espacenet record search in a new tab.
Countries
Anhui Changgeng Optics Technology Co., Ltd. (10)
Fujifilm Corporation (2)
Panasonic AVC Networks Xiamen Co., Ltd. (1)
Shenzhen Dongzheng Optical Technology Co., Ltd. (2)
Shenzhen Leiying Photoelectric Technology Co., Ltd. (7)
Shenzhen Viltrox Technology Co., Ltd. (3)
Sigma Corporation (2)
Canon Inc. (1)
Ernst Leitz Wetzlar GmbH (1)
Konica Minolta, Inc. (2)
Ernst Leitz Canada Limited (1)
Ernst Leitz GmbH (1)
VEB Carl Zeiss Jena (1)
Voigtländer AG (1)
Canon Camera Co., Inc. (1)
Carl-Zeiss-Stiftung (6)
Enna-Werk Optische Anstalt Dr. Appelt K.G. (1)
Ernst Leitz GmbH (5)
Fujifilm Corporation (1)
Jenoptik Jena GmbH (2)
Jos. Schneider & Co., Optische Werke (3)
Jos. Schneider & Co., Optotechnische Gesellschaft (1)
Nippon Kogaku K.K. (1)
Olympus Optical Co., Ltd. (3)
Optische Werke G. Rodenstock (9)
VEB Feinoptisches Werk Görlitz (3)
VEB Pentacon Dresden Kamera- und Kinowerke (1)
Voigtländer & Sohn AG (2)
No named assignee or applicant (2)
Fujifilm Corporation (3)
Nikon Corporation (24)
Nittoh Inc. (2)
Panasonic Intellectual Property Management Co., Ltd. (1)
Samyang Optics Co., Ltd. (3)
Sony Corporation (7)
Sony Group Corporation (11)
Tamron Co., Ltd. (1)
Canon Camera Co., Inc. (2)
Canon Inc. (51)
Carl Zeiss AG (1)
Carl-Zeiss-Stiftung (1)
Cosina Co., Ltd. (23)
Fuji Photo Film Co., Ltd. (1)
Fuji Photo Optical Co., Ltd. (3)
Fujifilm Corporation (5)
Jos. Schneider & Co., Optische Werke (1)
Kenko Tokina Co., Ltd. (1)
Kino Seimitsu Kogyo K.K. (1)
Konica Corporation (2)
Konica Minolta, Inc. (10)
Konishiroku Photo Industry Co., Ltd. (13)
Mamiya Koki Co., Ltd. (5)
Mamiya-OP Co., Ltd. (4)
Minolta Camera Co., Ltd. (10)
Minolta Co., Ltd. (4)
Miranda Camera Co., Ltd. (3)
Nikon Corporation (40)
Nippon Kogaku K.K. (12)
Olympus Corporation (1)
Olympus Imaging Corporation (3)
Olympus Optical Co., Ltd. (3)
OM Digital Solutions Corporation (1)
Panasonic Corporation (1)
Panasonic Intellectual Property Management Co., Ltd. (8)
Ricoh Co., Ltd. (5)
Ricoh Imaging Company, Ltd. (4)
Sigma Corporation (62)
Sony Corporation (5)
Sony Group Corporation (6)
Tamron Co., Ltd. (22)
Tamron Optical Foshan Co., Ltd. (1)
Tokina Optical Co., Ltd. (1)
Tomioka Optical Co., Ltd. (1)
Yashica Co., Ltd. (2)
No named assignee or applicant (1)
Samyang Optics Co., Ltd. (7)
Carl-Zeiss-Stiftung (1)
Jos. Schneider & Co., Optische Werke (2)
No named assignee or applicant (1)
Agfa Camera-Werk AG (1)
Carl-Zeiss-Stiftung (1)
Nippon Kogaku K.K. (1)
Ponder & Best, Inc. (1)
VEB Carl Zeiss Jena (3)
No named assignee or applicant (3)
ACM Projektentwicklung GmbH (1)
Agfa Camera-Werk AG (2)
Anhui Changgeng Optics Technology Co., Ltd. (1)
Apple Inc. (2)
Asahi Kogaku Kogyo Co., Ltd. (18)
Canon Camera Co., Inc. (7)
Canon Inc. (68)
Carl Zeiss AG (2)
Carl-Zeiss-Stiftung (12)
Eastman Kodak Company (5)
Enna-Werk Optische Anstalt Dr. Appelt K.G. (2)
Ernst Leitz Canada Limited (1)
Ernst Leitz GmbH (11)
Fuji Photo Optical Co., Ltd. (10)
Fujifilm Corporation (52)
Fujinon Corporation (3)
Hoya Corporation (4)
Jos. Schneider & Co., Optische Werke (12)
Jos. Schneider Optische Werke Kreuznach GmbH & Co. KG (3)
Konica Minolta Advanced Layers, Inc. (1)
Konica Minolta, Inc. (1)
Konishiroku Photo Industry Co., Ltd. (3)
Leica Camera AG (2)
Leica Camera GmbH (2)
Les Appareils de Precision Kinoptik (1)
Minolta Camera Co., Ltd. (22)
Miranda Camera Co., Ltd. (1)
Nikon Corporation (68)
Nippon Kogaku K.K. (49)
Nittoh Inc. (2)
Olympus Corporation (3)
Olympus Imaging Corporation (7)
Olympus Optical Co., Ltd. (22)
Panasonic Corporation (4)
Panasonic Intellectual Property Management Co., Ltd. (17)
Pentax Corporation (5)
Pentax Ricoh Imaging Company, Ltd. (3)
Ponder & Best, Inc. (2)
Ricoh Co., Ltd. (8)
Ricoh Imaging Company, Ltd. (4)
Samsung Digital Imaging Co., Ltd. (1)
Samsung Electro-Mechanics Co., Ltd. (1)
Samsung Electronics Co., Ltd. (2)
Samyang Optics Co., Ltd. (2)
Sigma Corporation (2)
Sony Corporation (20)
Tamron Co., Ltd. (16)
VEB Carl Zeiss Jena (1)
Vivitar Corporation (2)
Voigtländer & Sohn AG (6)
Voigtländer AG (3)
Yashica Co., Ltd. (1)
Zeiss Ikon AG (4)
No named assignee or applicant (7)
ChinaCN · 27 patentsAnhui Changgeng Optics Technology Co., Ltd.(10)CN 104991330 B↗2017Inventors: Xiaohua Zhang
Example 1LAOWA 105mm f/2 Smooth Trans Focus (STF)— 11 ELEMENTS / 8 GROUPS, DESIGN f = 102.26 mm
CN 110161666 A↗2019Inventors: Dayong Li
Example 2LAOWA 65mm f/2.8 2× Ultra Macro APO— 14 ELEMENTS / 10 GROUPS, f ≈ 66.0 mm (design) / 65 mm (marketed)
CN 112285890 B↗2024Inventors: Dayong Li
Example 2LAOWA ARGUS 45mm f/0.95 FF— 13 ELEMENTS / 9 GROUPS, DESIGN f = 44.89 mm
CN 116520542 A↗2023Inventors: Dayong Li
Example 1LAOWA 90mm f/2.8 2× Ultra Macro APO— 13 ELEMENTS / 10 GROUPS, DESIGN f = 87.06 mmExample 2LAOWA 58mm f/2.8 2× Ultra Macro APO— 14 ELEMENTS / 11 GROUPS, f ≈ 59.2 mm
CN 118584637 A↗2024Inventors: Dayong Li
Example 1LAOWA 100mm f/2.8 Tilt-Shift 1× Macro— 13 ELEMENTS / 10 GROUPS, DESIGN f = 101.99 mm
CN 118671950 A↗2024Inventors: Dayong Li
Example 1LAOWA 55mm f/2.8 Tilt-Shift 1× Macro— 14 ELEMENTS / 11 GROUPS, DESIGN f = 55.02 mm
CN 120276109 A↗2025Inventors: Dayong Li
Example 1LAOWA 180mm f/4.5 1.5× Ultra Macro APO— 12 ELEMENTS / 9 GROUPS, DESIGN f = 174.92 mm
CN 205427291 U↗2016Inventors: Xiaohua Zhang
Example 2LAOWA 15mm f/4 Wide Angle 1:1 Macro— 12 ELEMENTS / 9 GROUPS, f = 16.00 mm
CN 205720849 U↗2016Inventors: Xiaohua Zhang
Example 2LAOWA 12mm f/2.8 Zero-D— 16 elements / 10 groups, Design f = 12.4999 mm
CN 210573001 U↗2020Inventors: Dayong Li
Example 1LAOWA 24mm f/14 2× Macro Probe— 27 ELEMENTS / 19 GROUPS, f ≈ 23.7 mm
Fujifilm Corporation(2)CN 116500768 A↗2023Inventors: Yuya Hirakawa
Example 1FUJIFILM FUJINON XF 30mm f/2.8 R LM WR Macro— 11 ELEMENTS / 9 GROUPS, DESIGN f = 29.109 mm
CN 122410763 A↗2026Inventors: Takuya Tanaka
Example 1FUJIFILM FUJINON XC 13-33mm f/3.5-6.3 OIS— 10 ELEMENTS / 9 GROUPS, DESIGN f = 13.39-32.14 mm
Panasonic AVC Networks Xiamen Co., Ltd.(1)CN 216772097 U↗2022Inventors: Yidan Zheng, Hanzhao Chen, Xiaoqing Zhan
Example 1PANASONIC LUMIX S 35mm f/1.8— 11 ELEMENTS / 9 GROUPS, f ≈ 33.8 mm
Shenzhen Dongzheng Optical Technology Co., Ltd.(2)CN 118244463 A↗2024Inventors: Kuang Jian, Ouyang Xia, Ye Bo, Li Zenghui, Liu Xiaojuan
Example 1THYPOCH SIMERA 50mm f/1.4 ASPH.— 8 ELEMENTS / 6 GROUPS, DESIGN f = 51.76 mm
CN 118534627 A↗2024Inventors: Kuang Jian, Ouyang Xia, Ye Bo, Li Zenghui, Liu Xiaojuan
Example 1THYPOCH KSANA 21mm f/3.5 ASPH.— 8 ELEMENTS / 6 GROUPS, DESIGN f = 21.73 mm
Shenzhen Leiying Photoelectric Technology Co., Ltd.(7)CN 115840281 A↗2023Inventors: Liu Chen
Example 4VILTROX AF 27mm f/1.2 PRO XF— 15 ELEMENTS / 11 GROUPS, f = 27.7066 mm (DESIGN)
CN 209606699 U↗2019Inventors: Liu Ruijun, Chen Baofeng
Example 1VILTROX MF 20mm f/1.8— 12 ELEMENTS / 9 GROUPS, COMPUTED f = 20.31 mm
CN 211826699 U↗2020Inventors: Liu Ruijun, Chen Baofeng
Example 1VILTROX AF 33mm f/1.4 E— 10 ELEMENTS / 9 GROUPS, PATENT f = 33.21 mm
CN 211826700 U↗2020Inventors: Liu Ruijun, Chen Baofeng
Example 1VILTROX AF 23mm f/1.4— 11 ELEMENTS / 10 GROUPS, DESIGN f = 23.44 mm
CN 211955963 U↗2020Inventors: Liu Ruijun, Chen Baofeng
Example 1VILTROX AF 35mm f/1.8 FE— 10 ELEMENTS / 8 GROUPS, 35 mm MARKETED / 34.545 mm PATENT EFL
CN 211955965 U↗2020Inventors: Liu Ruijun, Chen Baofeng
Example 1VILTROX AF 56mm f/1.4 E— 10 ELEMENTS / 9 GROUPS, 56 mm MARKETED / 55.90 mm PATENT
CN 211955966 U↗2020Inventors: Liu Ruijun, Chen Baofeng
Example 1VILTROX AF 50mm f/1.8 FE— 11 ELEMENTS / 10 GROUPS, 50 mm MARKETED / 49.0738 mm MODELED
Shenzhen Viltrox Technology Co., Ltd.(3)CN 120686438 A↗2025Inventors: Liu Ruijun, Chen Baofeng
Example 1VILTROX AF 85mm f/1.4 PRO— 15 ELEMENTS / 11 GROUPS, DESIGN f = 86.5 mm
CN 120871380 A↗2025Inventors: Liu Ruijun, Chen Baofeng
Example 1VILTROX AF 50mm f/1.4 PRO— 15 ELEMENTS / 11 GROUPS, DESIGN f = 51.1 mm
CN 121091494 A↗2025Inventors: Liu Ruijun, Chen Baofeng
Example 1VILTROX AF 14mm f/4 AIR— 12 ELEMENTS / 9 GROUPS, 14mm MARKETING / 14.192mm MODELED EFL
Sigma Corporation(2)CN 120386081 A↗2025Inventors: Hiromichi Ochiai
Numerical Example 1SIGMA 28-45mm f/1.8 DG DN | Art— 18 elements / 15 groups, 28.84-43.66 mm design EFL
CN 121454749 A↗2026Inventors: Ryo Shioda
Numerical Example 1SIGMA 17-40mm f/1.8 DC | Art— 17 elements / 11 groups, 4 SLD / 4 aspherical elements
European Patent OfficeEP · 4 patentsCanon Inc.(1)EP 4 174 551 A1↗2023Inventors: Hiroki Ebe, Shunji Iwamoto
Numerical Embodiment 2CANON RF 15-30mm f/4.5-6.3 IS STM— 13 ELEMENTS / 11 GROUPS, 15-30mm MARKETING / 15.45-29.15mm PATENT
Ernst Leitz Wetzlar GmbH(1)EP 2 321 688 B1↗2020Inventors: Iain A. Neil
Embodiment 1LEICA SUMMILUX-C 18mm T1.4— 18 ELEMENTS / 15 GROUPS, DESIGN f ≈ 18 mm
Konica Minolta, Inc.(2)EP 3 029 504 A1↗2016Inventors: Keiko Yamada
Example 4LEICA SUMMILUX-TL 35mm f/1.4 ASPH.— 12 ELEMENTS / 8 GROUPS, DESIGN EFL 34.43 mm
EP 3 136 147 A1↗2017Inventors: Daisuke Tanahashi, Yoshihito Souma
Example 1LEICA SUMMILUX-SL 50mm f/1.4 ASPH. I— 11 ELEMENTS / 9 GROUPS, f ≈ 51.963 mm (DESIGN)
FranceFR · 4 patentsErnst Leitz Canada Limited(1)FR 1.233.449↗1960Inventors: Walter Mandler, Erich Wagner
Table 1LEICA SUMMILUX-M 35mm f/1.4— 7 ELEMENTS / 5 GROUPS, f = 35.143 mm MODELED
Ernst Leitz GmbH(1)FR 1,471,493↗1967Sole exampleLEICA ELMARIT-R 35mm f/2.8— 7 elements / 5 groups, f ≈ 35.1 mm
VEB Carl Zeiss Jena(1)FR 1.066.698↗1952Example 1CARL ZEISS JENA TESSAR 50mm f/2.8— 4 ELEMENTS / 3 GROUPS, f ≈ 50.0 mm
Voigtländer AG(1)FR 1,045,076↗1953Sole exampleVOIGTLÄNDER TELOMAR 180mm f/5.5— 5 ELEMENTS / 4 GROUPS, MARKETED 180mm f/5.5
GermanyDE · 41 patentsCanon Camera Co., Inc.(1)DE 1,022,027 B↗1958Inventors: Hiroshi Ito
Sole exampleCANON SERENAR 100mm f/3.5 I— 100mm, f/3.5
Carl-Zeiss-Stiftung(6)DE 1 250 153↗1967Inventors: Erhard Glatzel
Example 2CARL ZEISS DISTAGON T* 25mm f/2.8 (C/Y)— 8 ELEMENTS / 7 GROUPS, DESIGN EFL 25.903 mm
DE 1,089,183↗1960Inventors: Günther Lange
Table 1CARL ZEISS PRO-TESSAR 35mm f/3.2— 8 ELEMENTS / 6 GROUPS, f = 35.0 mm
DE 1,170,157 B↗1964Inventors: Johannes Berger, Günther Lange
Sole exampleCARL ZEISS CONTAREX PLANAR 55mm f/1.4— 7 ELEMENTS / 5 GROUPS, f = 55.0 mm
DE 1,241,637 B↗1967Inventors: Erhard Glatzel, Hans Schulz
Sole exampleCARL ZEISS HOLOGON 15mm f/8 (Contarex Hologon / Leica M)— 3 ELEMENTS / 3 GROUPS, f ≈ 15.0 mm
DE 1,268,404↗1968Inventors: Erwin Konschack, Günther Lange
Example 2CARL ZEISS OLYMPIA-SONNAR 180mm f/2.8— 4 ELEMENTS / 4 GROUPS, f ≈ 180.1 mm
DE 2359156 A1↗1975Inventors: Erhard Glatzel
Example 12CARL ZEISS DISTAGON T* 28mm f/2— 9 elements / 8 groups, f = 28.8 mm design
Enna-Werk Optische Anstalt Dr. Appelt K.G.(1)DE 1 228 820 B↗1966Inventors: Hans Lautenbacher
Sole exampleENNA MÜNCHEN LITHAGON 24mm f/4— 7 elements / 7 groups, f ≈ 24.0 mm
Ernst Leitz GmbH(5)DE 1 045 120 B↗1958Inventors: Otto Zimmermann, Gustav Kleineberg, Eugen Hermanni
Sole exampleLEICA SUMMILUX-M 50mm f/1.4 I— 7 ELEMENTS / 5 GROUPS, f = 49.811 mm (scaled design)
DE 1 096 057 B↗1960Inventors: Walter Mandler, Horst Schmidt
Sole exampleLEITZ TELYT 200mm f/4 (Visoflex)— 4 ELEMENTS / 4 GROUPS, f ≈ 200.3 mm
DE 1,183,707 B↗1964Inventors: Otto Zimmermann, Gustav Kleineberg, Eugen Hermanni
Sole exampleLEICA ELMAR-M 135mm f/4— 5 elements / 3 groups, f ≈ 134.5 mm
DE 2 222 892 A1↗1973Inventors: Georg Knetsch, Hermann Desch, Heinz Marquardt, Walter Watz
Example 3LEICA SUMMICRON-C 40mm f/2— 6 ELEMENTS / 4 GROUPS, f = 39.9987 mm (DESIGN)
DE 2 246 966 A1↗1974Inventors: Georg Knetsch, Walter Watz
Claim 3LEICA MACRO-ELMAR-M 90mm f/4— 4 ELEMENTS / 4 GROUPS, f = 89.958 mm (modeled)
Fujifilm Corporation(1)DE 11 2013 006 887 B4↗2018Inventors: Tetsuya Ori, Michio Cho
Example 1FUJIFILM FUJINON XF 55-200mm f/3.5-4.8 R LM OIS— 14 ELEMENTS / 10 GROUPS, 6 FUNCTIONAL ZOOM GROUPS
Jenoptik Jena GmbH(2)DE 1 157 000↗1963Inventors: Wolf Dannberg, Eberhard Dietzsch
Embodiment 1CARL ZEISS JENA FLEKTOGON 50mm f/4— 7 ELEMENTS / 4 GROUPS, f ≈ 50.00 mm
DE 3602859 A1↗1986Inventors: Utz Schneider, Volker Tautz, Karin Holota
Sole exampleCARL ZEISS JENA VARIO-PRAKTICAR 35-70mm f/2.7-3.5 MC— 9 ELEMENTS / 8 GROUPS, f ≈ 35.0-65.2 mm (DESIGN)
Jos. Schneider & Co., Optische Werke(3)DE 927 540↗1955Inventors: Wolfram W. Albrecht
Sole exampleSCHNEIDER-KREUZNACH CINEGON 6.5mm f/1.9— 8 ELEMENTS / 6 GROUPS, ALL-SPHERICAL
DE 975 637 C↗1962Inventors: Günter Klemt
Sole exampleSCHNEIDER-KREUZNACH SUPER-ANGULON 90mm f/8— 6 ELEMENTS / 4 GROUPS, f = 90.3 mm
DE 471565 C↗1929Inventors: Albrecht Wilhelm Tronnier
Sole exampleSCHNEIDER-KREUZNACH TELE-XENAR 180mm f/4.5— 5 ELEMENTS / 3 GROUPS, f = 179.95 mm MODELED
Jos. Schneider & Co., Optotechnische Gesellschaft(1)DE 753329↗1944Sole exampleSCHNEIDER-KREUZNACH XENAR 50mm f/2.8— 5 ELEMENTS / 4 GROUPS, DESIGN f = 50.0 mm
Nippon Kogaku K.K.(1)DE 1 497 540 A1↗1969Inventors: Ikuo Mori
Example IIINIKON PC-NIKKOR 35mm f/2.8— 8 ELEMENTS / 7 GROUPS, f = 34.8707 mm DESIGN / 35 mm MARKETED
Olympus Optical Co., Ltd.(3)DE 2157160 A1↗1973Inventors: Jihei Nakagawa
Embodiment 1OLYMPUS ZUIKO AUTO-FISHEYE 8mm f/2.8— Patent Example 1: 10 elements / 6 groups, Production correlation: 8mm f/2.8 OM circular fisheye
DE 2205380 A1↗1973Inventors: Nobuo Yamashita
Embodiment 3OLYMPUS G.ZUIKO AUTO-W 28mm f/3.5— 7 ELEMENTS / 7 GROUPS, f = 28.007 mm
DE 2206106 A1↗1972Inventors: Jihei Nakagawa
Sole exampleOLYMPUS E.ZUIKO AUTO-T 1000mm f/11— 5 ELEMENTS / 5 GROUPS, f = 1000.10 mm
Optische Werke G. Rodenstock(9)DE 1 258 134 B↗1968Inventors: Franz Schlegel
Example IRODENSTOCK SIRONAR 100mm f/5.6 (original convertible)— 6 ELEMENTS / 4 GROUPS, DESIGN f = 100 mm
DE 1,089,991↗1960Inventors: Karlheinz Pennig
Sole exampleRODENSTOCK ROGONAR-S 50mm f/2.8— 4 ELEMENTS / 3 GROUPS, f = 50.0 mm
DE 3,907,928 C2↗1997Inventors: Ernst Rothe, Josef Weiß
Table 5RODENSTOCK APO-SIRONAR-W 150mm f/5.6— 150mm marketed / 148.7mm design, f/5.6
DE 26 35 415 B1↗1977Inventors: Franz Schlegel, Josef Weiß
Claim 1RODENSTOCK GRANDAGON-N 75mm f/6.8— 6 ELEMENTS / 4 GROUPS, f = 75 mm
DE 27 29 831 B1↗1978Inventors: Franz Schlegel, Josef Weiß
Sole exampleRODENSTOCK SIRONAR-N 100mm f/5.6— 6 elements / 4 groups, f′ = 99.998 mm, e-line
DE 28 18 394 B1↗1979Inventors: Josef Weiß, Franz Schlegel
Sole exampleRODENSTOCK GERONAR 210mm f/6.8— 3 elements / 3 groups, f' = 210.10 mm (d-line)
DE 2444954 A1↗1976Inventors: Franz Schlegel, Josef Weiß
Claim 2RODENSTOCK GRANDAGON-N 90mm f/4.5— 8 ELEMENTS / 4 GROUPS, f′ = 90 mm patent exampleClaim 3RODENSTOCK GRANDAGON-N 75mm f/4.5— 8 elements / 4 groups, f′ = 75 mmClaim 4RODENSTOCK GRANDAGON-N 65mm f/4.5— 8 ELEMENTS / 4 GROUPS, f′ = 65 mm; EFL ≈ 64.83 mm
DE 2818435 B1↗1978Inventors: Franz Schlegel, Josef Weiß
Sole exampleRODENSTOCK RODAGON-WA 80mm f/4— 6 elements / 4 groups, f ≈ 79.95 mm (d-line)
DE 3026282 C2↗1982Inventors: Josef Weiß
Sole exampleRODENSTOCK GERONAR-WA 90mm f/8— 4 ELEMENTS / 4 GROUPS, DESIGN f = 100 (SCALED ×0.9)
VEB Feinoptisches Werk Görlitz(3)DE 1 749 770 U↗1957Sole exampleMEYER OPTIK GÖRLITZ PRIMAGON 35mm f/4.5— 4 ELEMENTS / 4 GROUPS, 35 mm MARKETED / 34.575 mm MODELED EFL
DE 1 794 971↗1959Sole exampleMEYER OPTIK GÖRLITZ LYDITH 30mm f/3.5— 5 ELEMENTS / 5 GROUPS, 30 mm MARKETED / 30.579845 mm DESIGN EFL
DE 1 980 417↗1968Sole exampleMEYER OPTIK GÖRLITZ ORESTEGOR 500mm f/5.6— 4 ELEMENTS / 4 GROUPS, f = 497.79 mm DESIGN / 500 mm MARKETED
VEB Pentacon Dresden Kamera- und Kinowerke(1)DE 1 282 311↗1968Inventors: Hubert Ulbrich
Sole exampleMEYER OPTIK GÖRLITZ ORESTOR 135mm f/2.8— 5 ELEMENTS / 4 GROUPS, 135mm f/2.8
Voigtländer & Sohn AG(2)DE 143889 C↗1903Inventors: Carl August Hans Harting
Sole exampleVOIGTLÄNDER HELIAR 100mm f/4.5 (Second Asymmetric Form)— 5 ELEMENTS / 3 GROUPS, f = 99.858 mm DESIGN
DE 444150 C↗1927Inventors: Hans Deser
Example 1VOIGTLÄNDER TELE-DYNAR 100mm f/6.3 (patent-normalized)— 5 ELEMENTS / 3 GROUPS, 100 mm f/6.3 PATENT NOMINALExample 2VOIGTLÄNDER CINE-TELE-ANASTIGMAT 100mm f/4.5 (patent model)— 4 ELEMENTS / 3 GROUPS, 100 mm f/4.5 PATENT NOMINAL
No named assignee or applicant(2)DE 843 305↗1952Inventors: Ludwig Bertele
Example 2SCHACHT TRAVENAR 135mm f/3.5— 4 ELEMENTS / 4 GROUPS, ALL-SPHERICAL
DE 401630↗1924Inventors: Paul Rudolph
Example IIIMEYER OPTIK GÖRLITZ KINO-PLASMAT 100mm f/2— 6 ELEMENTS / 4 GROUPS, f ≈ 100.16 mm (modeled d-line)
International (WIPO)WO · 51 patentsFujifilm Corporation(3)WO 2024/057734 A1↗2024Inventors: Masaru Amano, Taiga Noda, Yasutaka Shimada, Yuya Hirakawa
Example 17FUJIFILM FUJINON XF 16-50mm f/2.8-4.8 R LM WR— 11 ELEMENTS / 9 GROUPS, 16–50 mm
WO 2024/195273 A1↗2024Inventors: Daiki Komatsu, Takuya Tanaka, Hiroki Saito
Example 4FUJIFILM FUJINON GF 30mm f/5.6 T/S— 16 elements / 11 groups, 30.90 mm design EFL
WO 2025/013477 A1↗2025Inventors: Takuya Tanaka, Shunsuke Miyagishima
Example 7FUJIFILM FUJINON GF 500mm f/5.6 R LM OIS WR— 21 ELEMENTS / 14 GROUPS, 500 mm f/5.6 MARKETED
Nikon Corporation(24)WO 2014/061226 A1↗2014Inventors: Kumiko Ishida, Issei Tanaka
Example 1NIKON 1 NIKKOR 32mm f/1.2— 9 elements / 7 groups, f = 32.402 mm design
WO 2015/141574 A1↗2015Inventors: Taku Matsuo, Hiroshi Yamamoto
Example 2NIKON AF-S DX NIKKOR 55-200mm f/4-5.6 G ED VR II— 13 elements / 9 groups, f = 56.61-194.07 mm design
WO 2019/049372 A1↗2019Inventors: Takeshi Umeda
Example 1NIKON NIKKOR Z 24-70mm f/4 S— 14 ELEMENTS / 11 GROUPS, f = 24.72 – 67.91 mm (2.75× zoom)
WO 2019/097669 A1↗2019Inventors: Tomoki Ito
Example 1NIKON AF-S NIKKOR 70-200mm f/2.8 E FL ED VR— 22 ELEMENTS / 18 GROUPS, f = 70–200 mm (design 71.5–196.0 mm)
WO 2019/116563 A1↗2019Inventors: Masashi Yamashita, Tomoki Ito, Hiroshi Yabumoto, Hiroshi Yamamoto, Satoshi Miwa, Keisuke Tsubonoya, Ayumu Makida, Takeru Uehara
Example 3NIKON AF-S NIKKOR 105mm f/1.4 E ED— 14 ELEMENTS / 9 GROUPS, f = 102.148 mm
WO 2019/131993 A1↗2019Inventors: Mitsuaki Wada, Masashi Yamashita
Table 8NIKON AF-S NIKKOR 180-400mm f/4 E TC1.4 FL ED VR— TC OUT — EXAMPLE 1, 27 ELEMENTS / 19 GROUPS
WO 2019/220618 A1↗2019Inventors: Saburo Masugi, Tomoyuki Sashima
Example 9NIKON NIKKOR Z 50mm f/1.8 S— 12 elements / 9 groups, EFL 51.6 mm
WO 2019/229849 A1↗2019Inventors: Keisuke Tsubonoya, Hiroki Harada, Toshinori Take
Example 1NIKON NIKKOR Z 58mm f/0.95 S Noct— 17 ELEMENTS / 10 GROUPS, f = 59.62 mm
WO 2020/012638 A1↗2020Inventors: Yoko Komatsubara, Takeshi Umeda
Numerical Example 8NIKON NIKKOR Z DX 16-50mm f/3.5-6.3 VR— 9 ELEMENTS / 7 GROUPS, f = 16.46–48.50 mm
WO 2020/105104 A1↗2020Inventors: Takeru Uehara
Example 1NIKON NIKKOR Z 70-200mm f/2.8 VR S— 21 ELEMENTS / 18 GROUPS, f = 71.5–196 mm
WO 2020/136749 A1↗2020Inventors: Kosuke Machida, Osamu Gomibuchi, Kenichi Kitano, Mizuki Wayu, Tsuneo Watanabe, Makoto Horikoshi, Ichiro Imaei
Example 1NIKON NIKKOR Z 24-70mm f/2.8 S— 17 ELEMENTS / 15 GROUPS, f = 24.8–67.9 mm
WO 2021/039813 A1↗2021Inventors: Masashi Yamashita, Tomoki Ito, Tomonori Kuribayashi, Keigo Koida, Satoshi Miwa, Yoko Komatsubara, Katsuya Watanabe, Azuna Nonaka, Ayumu Makida
Example 2NIKON AF-P DX NIKKOR 10-20mm f/4.5-5.6 G VR— 10-20 mm DX zoom, 14 elements / 11 groups; 3 aspherical elements
WO 2021/117429 A1↗2021Inventors: Fumiaki Ohtake
Example 1NIKON NIKKOR Z 20mm f/1.8 S— 20 mm, f/1.8
WO 2021/117563 A1↗2021Inventors: Fumiaki Ohtake, Azuna Nonaka, Yoshiharu Yuasa, Takeshi Umeda
Example 4NIKON NIKKOR Z 14-24mm f/2.8 S— 16 ELEMENTS / 11 GROUPS, f = 14.4–23.3 mm (patent) / 14–24 mm (production)
WO 2021/241230 A1↗2021Inventors: Hiroki Harada
Example 1NIKON NIKKOR Z 50mm f/1.2 S— 17 ELEMENTS / 15 GROUPS, f = 51.29 mm
WO 2022/071249 A1↗2022Inventors: Toshiyuki Shimada
Example 2NIKON NIKKOR Z 28mm f/2.8— 9 ELEMENTS / 8 GROUPS, f = 28.824 mm
WO 2022/097401 A1↗2022Inventors: Tomonori Kuribayashi
Example 1NIKON NIKKOR Z MC 105mm f/2.8 VR S— 16 ELEMENTS / 11 GROUPS, f = 102.86 mm
WO 2022/259649 A1↗2022Inventors: Takuro Ono, Kosuke Machida, Ayumu Makida, Keisuke Tsubonoya
Example 5NIKON NIKKOR Z 24-120mm f/4 S— 16 ELEMENTS / 13 GROUPS, f = 24.70 – 116.50 mm
WO 2022/264542 A1↗2022Inventors: Tomoyuki Sashima, Norikazu Yokoi, Takahiro Ishikawa
Example 1NIKON NIKKOR Z DX 18-140mm f/3.5-6.3 VR— 17 ELEMENTS / 13 GROUPS, f = 18.5–135.8 mm (design)
WO 2023/190222 A1↗2023Inventors: Ayumu Makida, Taeko Toshi
Example 1NIKON NIKKOR Z 26mm f/2.8— 8 ELEMENTS / 6 GROUPS, f = 26.78 mm
WO 2024/062958 A1↗2024Also assigned to: Tamron Co., Ltd.
Inventors: Hisayuki Yamanaka, Atsushi Takahashi, Toshinori Take, Keigo Koida
Example 2NIKON NIKKOR Z 180-600mm f/5.6-6.3 VR— 25 ELEMENTS / 17 GROUPS, 180-600mm (DESIGN 185.0086-582.1636mm)
WO 2024/147268 A1↗2024Inventors: Mami Muratani, Hiroshi Yamamoto, Tomonori Kuribayashi, Takuro Ono
Example 1NIKON NIKKOR Z 135mm f/1.8 S Plena— 16 ELEMENTS / 14 GROUPS, f ≈ 132.3 mm
WO 2024/214585 A1↗2024Inventors: Fumiaki Ohtake
Example 2NIKON NIKKOR Z 24-70mm f/2.8 S II— 14 ELEMENTS / 10 GROUPS, DESIGN f = 24.70–67.87 mm
WO 2026/172598 A1↗2026Inventors: Akino Takahashi
Example 1NIKON NIKKOR Z 70-200mm f/2.8 VR S II— 18 ELEMENTS / 16 GROUPS, f = 71.4–196.0 mm
Nittoh Inc.(2)WO 2017/221949 A1↗2017Inventors: Akira Sawamoto
Example 1HASSELBLAD XCD 45mm f/3.5— 9 ELEMENTS / 7 GROUPS, 45.0 mm f/3.5 (MARKETING)
WO 2018/052113 A1↗2018Inventors: Akira Sawamoto
Example 1HASSELBLAD XCD 30mm f/3.5— 11 ELEMENTS / 10 GROUPS, MODELED EFL 30.981 mm
Panasonic Intellectual Property Management Co., Ltd.(1)WO 2020/158622 A1↗2020Inventors: Shunichiro Yoshinaga, Yasuhito Suzuki
Numerical Example 3PANASONIC LUMIX S PRO 50mm f/1.4— 13 ELEMENTS / 11 GROUPS, f ≈ 49.0 mm
Samyang Optics Co., Ltd.(3)WO 2020/230915 A1↗2020Inventors: Moon-Kyung Kim
Embodiment 1SAMYANG AF 24mm f/2.8 FE— 7 ELEMENTS / 7 GROUPS, 24 mm MARKETING / 25.026 mm DESIGN
WO 2021/085655 A1↗2021Inventors: Moon-Kyung Kim
Example 3SAMYANG AF 85mm f/1.4 FE— 11 elements / 8 groups, f = 83.996 mm design / 85 mm marketed
WO 2021/246545 A1↗2021Inventors: Jung Du Lee
Embodiment 1SAMYANG AF 18mm f/2.8 FE— 9 elements / 8 groups, f = 18.541 mm patent; 18.548 mm computed
Sony Corporation(7)WO 2016/136352 A1↗2016Inventors: Yumiko Uehara, Fumikazu Kanetaka, Hisashi Uno
Example 2SONY FE 90mm f/2.8 Macro G OSS— 15 ELEMENTS / 11 GROUPS, f ≈ 92.6 mm
WO 2017/130571 A1↗2017Inventors: Masaki Maruyama, Hiroyuki Matsumoto
Example 2SONY FE 85mm f/1.4 GM— 11 ELEMENTS / 8 GROUPS, DESIGN f = 86.85 mm
WO 2017/138250 A1↗2017Inventors: Masaharu Hosoi
Numerical Example 2SONY PLANAR T* FE 50mm f/1.4 ZA— 12 ELEMENTS / 9 GROUPS, f ≈ 50.3 mm
WO 2018/139160 A1↗2018Inventors: Kouji Katou, Hiromichi Nose
Numerical Example 4SONY FE 16-35mm f/2.8 GM— 16 ELEMENTS / 13 GROUPS, DESIGN f = 16.5–33.95 mm
WO 2019/073744 A1↗2019Inventors: Takuya Kato, Kota Omiya, Hiroyuki Matsumoto
Numerical Example 1SONY FE 24mm f/1.4 GM— 13 elements / 10 groups, f = 23.66 mm patent design
WO 2019/187633 A1↗2019Inventors: Dai Matsuoka, Naoki Miyagawa, Hiroyuki Matsumoto
Numerical Example 1SONY FE 135mm f/1.8 GM— 13 ELEMENTS / 10 GROUPS, f ≈ 131.0 mm
WO 2020/213337 A1↗2020Inventors: Kota Omiya, Tetsuichiro Okumura
Numerical Example 2SONY FE 20mm f/1.8 G— 14 ELEMENTS / 12 GROUPS, 20 mm (scaled from 19.5069 mm paraxial)
Sony Group Corporation(11)WO 2021/199923 A1↗2021Inventors: Takumu Yamada, Dai Matsuoka
Numerical Example 1SONY FE 14mm f/1.8 GM— 14 elements / 11 groups, f = 14.42 mm design
WO 2021/200206 A1↗2021Inventors: Takuya Kato
Example 2SONY FE 12-24mm f/2.8 GM— 17 elements / 14 groups, f = 12.37-23.28 mm design
WO 2023/153076 A1↗2023Inventors: Ryohei Tazaki, Yuma Kumisawa, Hiroo Juri
Example 8SONY FE 20-70mm f/4 G— 16 ELEMENTS / 13 GROUPS, f = 20.71–67.56 mm
WO 2023/181666 A1↗2023Inventors: Masaki Maruyama
Example 4SONY FE 24-70mm f/2.8 GM II— 20 ELEMENTS / 15 GROUPS, f = 24.72–67.90 mm
WO 2024/135126 A1↗2024Inventors: Shohei Kikuchi, Kohei Uemura, Yurina Nishi
Example 1SONY FE 16-35mm f/2.8 GM II— 15 elements / 12 groups, 6 zoom groups: - + + + - +
WO 2024/154461 A1↗2024Inventors: Fumikazu Kanetaka
Example 1SONY FE 400-800mm f/6.3-8 G OSS— 27 ELEMENTS / 17 AIR-SEPARATED GROUPS, 7 FUNCTIONAL ZOOM GROUPS
WO 2024/166548 A1↗2024Inventors: Masakazu Yamagishi
Example 1SONY FE 50mm f/1.4 GM— 14 ELEMENTS / 11 GROUPS, DESIGN EFL 51.495 mm
WO 2024/247472 A1↗2024Inventors: Naoki Itoku, Takumu Yamada
Example 2SONY FE 70-200mm f/4 Macro G OSS II— 19 ELEMENTS / 13 AIR-SEPARATED COMPONENTS / 7 FUNCTIONAL GROUPS, DESIGN f = 72.105-192.992 mm
WO 2025/220324 A1↗2025Inventors: Hiroo Juri, Naoto Kikuchi, Hiraku Iwaya
Example 1SONY FE 50-150mm f/2 GM— 19 ELEMENTS / 17 GROUPS, DESIGN 51.50-145.50 mm
WO 2025/239028 A1↗2025Inventors: Masakazu Yamagishi, Ryohei Tazaki, Yuma Kumisawa
Example 2SONY FE 85mm f/1.4 GM II— 14 ELEMENTS / 11 GROUPS, f ≈ 82.5 mm
WO 2025/263124 A1↗2025Inventors: Takashi Yamasaki, Iwao Yamada
Example 1SONY FE 28-70mm f/2 GM— 20 ELEMENTS / 14 GROUPS, f = 28.86–67.87 mm
Tamron Co., Ltd.(1)WO 2024/062958 A1↗2024Also assigned to: Nikon Corporation
Inventors: Hisayuki Yamanaka, Atsushi Takahashi, Toshinori Take, Keigo Koida
Example 2NIKON NIKKOR Z 180-600mm f/5.6-6.3 VR— 25 ELEMENTS / 17 GROUPS, 180-600mm (DESIGN 185.0086-582.1636mm)
JapanJP · 306 patentsCanon Camera Co., Inc.(2)JP S39-10178 B↗1964Inventors: Jiro Mukai
Sole exampleCANON 50mm f/0.95— 7 ELEMENTS / 5 GROUPS, DESIGN f = 50.00 mm
JP S40-24553 B↗1965Inventors: Jiro Mukai
Sole exampleCANON R 58mm f/1.2— 7 ELEMENTS / 5 GROUPS, DESIGN f = 1 (SCALED ×58)
Canon Inc.(51)JP 1991-141313 A↗1991Inventors: Hideki Ogawa
Numerical Example 1CANON EF 100mm f/2.8 Macro— 10 ELEMENTS / 9 GROUPS, 100mm f/2.8 (marketed)
JP 1997-211319 A↗1997Inventors: Hideki Ogawa
Numerical Example 1CANON EF 180mm f/3.5 L Macro USM— 14 ELEMENTS / 12 GROUPS, 180mm f/3.5 MARKETED
JP 1999-030743 A↗1999Inventors: Makoto Misaka
Numerical Example 6CANON EF 24mm f/1.4 L USM— 11 ELEMENTS / 9 GROUPS, PATENT f = 24.6 mm, F/1.45, 2ω = 82.7°
JP 2000-47107 A↗2000Inventors: Hiroshi Endo
Numerical Example 2CANON EF 100-400mm f/4.5-5.6 L IS USM— 17 ELEMENTS / 14 PHYSICAL GROUPS, PATENT f = 102.68 / 161.53 / 389.19 mm
JP 2000-284174 A↗2000Inventors: Akihiro Nishio
Numerical Example 1CANON EF 70-200mm f/4 L USM— 16 ELEMENTS / 13 GROUPS, 70-200mm f/4 (MARKETED)
JP 2001-350095 A↗2001Inventors: Makoto Mitsusaka
Numerical Example 1CANON EF 28-200mm f/3.5-5.6 USM— 16 GLASS SUBSTRATES / 12 GROUPS, DESIGN 28.92-193.14 mm
JP 2002-162564 A↗2002Inventors: Akira Harada
Numerical Example 1CANON EF 70-200mm f/2.8 L IS USM— PATENT EXAMPLE: 21 ELEMENTS / 19 GROUPS, DESIGN 72.50-194.98 mm
JP 2002-365547 A↗2002Inventors: Makoto Mitsusaka
Numerical Example 1CANON EF 28-105mm f/3.5-4.5 II USM— 15 ELEMENTS / 12 GROUPS, PATENT EFL 28.903-101.333 mm
JP 2004-317867 A↗2004Inventors: Hiroshi Endo
Numerical Example 1CANON EF 70-300mm f/4.5-5.6 DO IS USM— 17 ELEMENTS / 14 AIR-SPACED ASSEMBLIES, 7 FUNCTIONAL ZOOM GROUPS
JP 2005-092056 A↗2005Inventors: Takeshi Nishimura
Numerical Example 5CANON EF-S 18-55mm f/3.5-5.6— 11 ELEMENTS / 9 GROUPS, 18-55mm MARKETED
JP 2007-003600 A↗2007Inventors: Takashi Shirasuna
Numerical Example 1CANON EF 70-300mm f/4-5.6 IS USM— 15 elements / 10 groups, Patent design: 72.4-290.0 mm
JP 2007-108398 A↗2007Inventors: Hiroshi Endo
Numerical Example 1CANON EF-S 17-55mm f/2.8 IS USM— 21 ELEMENTS (19 GLASS + 2 RESIN) / 12 GROUPS, f = 17.50–53.44 mm
JP 2007-333790 A↗2007Inventors: Makoto Mitsusaka
Numerical Example 1CANON EF 50mm f/1.2 L USM— 8 ELEMENTS / 6 GROUPS, DESIGN EFL ≈ 51.695 mm
JP 2008-070450 A↗2008Inventors: Yoshiyuki Taki
Numerical Example 1CANON EF 70-200mm f/4 L IS USM— 20 ELEMENTS / 15 GROUPS, 70-200mm f/4 (MARKETED)
JP 2008-145584 A↗2008Inventors: Takayoshi Yokoyama
Numerical Example 1CANON EF 200mm f/2 L IS USM— 17 elements / 12 groups incl. drop-in filter, f = 194.991 mm design; 200 mm marketed
JP 2009-282554 A↗2009Inventors: Makoto Misaka
Numerical Example 6CANON EF 28-90mm f/4-5.6 II USM— 10 elements / 8 air-spaced groups, 28-90mm f/4-5.6
JP 2013-054269 A↗2013Inventors: Makoto Nakahara
Numerical Example 1CANON EF 28mm f/2.8 IS USM— 9 ELEMENTS / 7 GROUPS, DESIGN f = 28.60 mm
JP 2013-140404 A↗2013Inventors: Shigenobu Sugita
Numerical Example 1CANON EF 70-300mm f/4-5.6 L IS USM— 19 elements / 14 groups, 72.20–290.00 mm design EFL
JP 2014-041222 A↗2014Inventors: Hiroshi Endo
Numerical Example 1CANON EF 24-70mm f/2.8 L USM— 16 elements / 13 groups, 24.90-68.14 mm patent design
JP 2015-031869 A↗2015Inventors: Makoto Nakahara
Numerical Example 1CANON EF-S 10-18mm f/4.5-5.6 IS STM— 14 ELEMENTS / 11 GROUPS, f = 10.30–17.46 mm
JP 2015-94867 A↗2015Inventors: Tsuyoshi Wakazono, Tomoyuki Nakamura, Kazuya Shimomura, Yu Inomoto
Numerical Example 1CANON CINE-SERVO 17-120mm T2.95-3.9 (CN7×17 KAS S/E1)— 27 ELEMENTS / 22 GROUPS, 17-120mm PRODUCT / 17.0206-118.9429mm DESIGN
JP 2015-111192 A↗2015Inventors: Yuichi Gyoda
Numerical Example 1CANON EF-S 24mm f/2.8 STM— 6 ELEMENTS / 5 GROUPS, f ≈ 24.5 mm
JP 2016-118658 A↗2016Inventors: Taku Inoue
Numerical Example 8CANON EF-M 15-45mm f/3.5-6.3 IS STM— 10 ELEMENTS / 9 GROUPS, MARKETED 15-45mm f/3.5-6.3
JP 2016-148731 A↗2016Inventors: Takashi Okada
Numerical Example 6CANON 8.8-220mm f/2.8-5.6 (Canon PowerShot G3 X)— 18 ELEMENTS / 13 OPTICAL GROUPS, 6 KINEMATIC ZOOM GROUPS
JP 2016-161889 A↗2016Inventors: Akihiko Yuki
Example 1CANON 10.2-30.6mm f/2-4.9 (Canon PowerShot G9 X)— 8 ELEMENTS / 6 AIR-SPACED COMPONENTS / 3 ZOOM GROUPS, f = 10.50-29.90 mm (PATENT)
JP 2018-049102 A↗2018Inventors: Tomohiko Ishibashi
Example 1CANON EF 135mm f/2 L USM— 10 ELEMENTS / 8 GROUPS, 135 mm f/2 (marketing)
JP 2018-106021 A↗2018Inventors: Daisuke Ito
Numerical Example 1CANON 15-45mm f/2.8-5.6 (Canon PowerShot G1 X Mark III)— 9 elements / 8 groups, 15-45mm f/2.8-5.6
JP 2018-132674 A↗2018Inventors: Akira Mizuma
Example 1CANON TS-E 135mm f/4 L MACRO— 11 elements / 7 groups, f = 132.97 mm design (135 mm marketed)
JP 2018-180366 A↗2018Inventors: Kenji Shinohara
Numerical Data 1CANON EF-M 32mm f/1.4 STM— 14 elements / 8 groups, f = 32.34 mm design
JP 2018-205474 A↗2018Inventors: Masakazu Yamagishi
Example 1CANON TS-E 90mm f/2.8 L MACRO— 11 elements / 9 groups, Patent f = 55.986 mm; scaled ×1.60754
JP 2020-118807 A↗2020Inventors: Kohei Kimura
Example ACANON RF 28-70mm f/2 L USM— 19 ELEMENTS / 13 GROUPS, f = 28.9 – 67.9 mm (patent)
JP 2020-173349 A↗2020Inventors: Maki Yokoya, Tomohiro Ino
Numerical Example 1CANON RF 600mm f/11 IS STM— 10 ELEMENTS / 7 GROUPS, 600mm f/11 (MARKETED)Numerical Example 2CANON RF 800mm f/11 IS STM— 11 ELEMENTS / 8 GROUPS, 800mm f/11 (MARKETED)
JP 2021-047297 A↗2021Inventors: Keiko Taki, Takeo Mori, Makoto Nakahara
Example 1CANON RF 100mm f/2.8 L MACRO IS USM— 17 ELEMENTS / 13 GROUPS, f ≈ 100.8 mm
JP 2021-056407 A↗2021Inventors: Makoto Nakahara, Shunji Iwamoto, Masato Katayose
Example 3CANON RF 70-200mm f/2.8 L IS USM— 17 ELEMENTS / 12 GROUPS / 7 ZOOM UNITS, f = 72.13–194.06 mm
JP 2021-86024 A↗2021Inventors: Yuichi Gyoda
Numerical Example 2CANON RF-S 18-45mm f/4.5-6.3 IS STM— 7 ELEMENTS / 7 GROUPS, 18–45mm f/4.5–6.3 (marketed)
JP 2022-085382 A↗2022Inventors: Takumi Suzuki
Numerical Example 3CANON RF 16mm f/2.8 STM— 9 elements / 7 groups, f = 16.49 mm design / 16 mm marketed
JP 2024-101615 A↗2024Inventors: Shinichiro Saito
Numerical Example 1CANON RF 16-28mm f/2.8 IS STM— 16 ELEMENTS / 13 GROUPS, f = 15.49–27.16 mm
JP 2025-15010 A↗2025Inventors: Kenji Shinohara, Yuki Matsuba
Numerical Example 3CANON RF 24mm f/1.4 L VCM— 15 ELEMENTS / 11 GROUPS, 24mm f/1.4 (MARKETED)
JP 2025-50505 A↗2025Inventors: Takeharu Nakada
Numerical Example 5CANON RF-S 14-30mm f/4-6.3 IS STM PZ— 10 ELEMENTS / 9 GROUPS, f ≈ 14.41–29.35 mm
JP H01-102413 A↗1989Inventors: Hideki Ogawa, Sadatoshi Takahashi
Numerical Example 1CANON EF 200mm f/1.8 L USM— 10 POWERED ELEMENTS / 8 GROUPS (PATENT CORE), f ≈ 200.017 mm
JP H01-189622 A↗1989Inventors: Sadatoshi Takahashi
Numerical Example 1CANON EF 28-70mm f/3.5-4.5 II— 10 ELEMENTS / 9 GROUPS, DESIGN EFL 29.083-67.894 mm
JP H05-034592 A↗1993Inventors: Hideki Ogawa
Numerical Example 2CANON EF 14mm f/2.8 L USM— 14 ELEMENTS / 10 GROUPS, f = 14.201 mm
JP H05-157964 A↗1993Inventors: Hiroshi Endo
Numerical Example 1CANON EF 85mm f/1.8 USM— 9 ELEMENTS / 7 GROUPS, DESIGN f = 85.0 mm
JP H08-062541 A↗1996Inventors: Shingo Hayakawa
Numerical Example 2CANON EF 75-300mm f/4-5.6 IS USM— 15 ELEMENTS / 10 GROUPS, DESIGN f = 76.12–291.49 mm
JP H08-110467 A↗1996Inventors: Tadashi Endo
Numerical Example 2CANON EF 20mm f/2.8 USM— 11 elements / 9 groups, Patent EFL 20.498624 mm; retained at printed scale
JP H11-211978 A↗1999Inventors: Yasunori Murata, Makoto Misaka
Numerical Example 1CANON EF 35mm f/1.4 L USM— 11 ELEMENTS / 9 GROUPS, 35 mm MARKETED / 34.2948 mm DESIGN
JP S53-133028 A↗1978Inventors: Sadahiko Tsuji
Sole exampleCANON NEW FD 100mm f/2— 6 elements / 4 groups, f ≈ 100.00 mm
JP S57-64716 A↗1982Inventors: Keiji Ikemori
Sole exampleCANON NEW FD 14mm f/2.8 L— 14 elements / 10 groups, f ≈ 14.0 mm
JP S61-77818 A↗1986Inventors: Keiji Ikemori, Sadatoshi Takahashi, Takashi Matsushita, Tsunefumi Tanaka, Nozomi Kitagishi
Sole exampleCANON EF 100-300mm f/5.6— 15 ELEMENTS / 9 GROUPS, 100-300mm f/5.6 (MARKETED)
JP S62-078520 A↗1987Inventors: Takashi Matsushita
Numerical Example 1CANON EF 28mm f/2.8— 5 ELEMENTS / 5 GROUPS, f = 28.219 mm (MODELED)
JP S63-17421 A↗1988Inventors: Takashi Matsushita
Numerical Example 3CANON EF 15mm f/2.8 Fisheye— 8 ELEMENTS / 7 GROUPS, PATENT F = 15.3 mm
Carl Zeiss AG(1)JP 2015-161792 A↗2015Also assigned to: Fujifilm Corporation
Inventors: Ryoko Tomioka, Hiroki Saito, Aurélien Dodoc, Michael Pollmann, Jürgen Klein
Example 1CARL ZEISS TOUIT MAKRO-PLANAR T* 50mm f/2.8 Macro— 14 elements / 11 groups, f' = 51.52 mm patent design
Carl-Zeiss-Stiftung(1)JP S30-4837 B↗1955Inventors: Ludwig Bertele
Sole exampleCARL ZEISS BIOGON 35mm f/2.8 (post-war Contax)— 7 ELEMENTS / 4 GROUPS, f ≈ 34.75 mm
Cosina Co., Ltd.(23)JP 2000-321490 A↗2000Inventors: Koji Shiokawa
Example 1VOIGTLÄNDER ULTRON 35mm f/1.7 Aspherical L39— 8 ELEMENTS / 6 GROUPS, DESIGN f = 36.05 mm
JP 2000-330014 A↗2000Inventors: Koji Shiokawa
Example 2VOIGTLÄNDER NOKTON 50mm f/1.5 Aspherical L39— 6 ELEMENTS / 5 GROUPS, DESIGN f = 51.60 mm
JP 2001-124985 A↗2001Inventors: Yoshihisa Yomogida
Example 1VOIGTLÄNDER ULTRA WIDE-HELIAR 12mm f/5.6 Aspherical L39— 10 ELEMENTS / 8 GROUPS, DESIGN f = 11.98 mm
JP 2002-090622 A↗2002Inventors: Yoshihisa Yomogida
Example 2VOIGTLÄNDER MACRO APO-LANTHAR 125mm f/2.5 SL— 10 ELEMENTS / 9 GROUPS, f = 125.0 mm
JP 2003-270529 A↗2003Inventors: Yoshihisa Yomogida
Example 1VOIGTLÄNDER APO-LANTHAR 180mm f/4 SL Close Focus— 9 ELEMENTS / 7 GROUPS, f ≈ 197.9 mm (patent) / 180 mm (marketed)
JP 2004-101880 A↗2004Inventors: Yoshihisa Yomogida
Example 2VOIGTLÄNDER NOKTON 35mm f/1.2 Aspherical— 10 ELEMENTS / 7 GROUPS, f ≈ 35.8 mm
JP 2020-122918 A↗2020Inventors: Hirokazu Shimada, Yasuyuki Sugano
Example 3VOIGTLÄNDER NOKTON Vintage Line 75mm f/1.5 Aspherical VM— 7 ELEMENTS / 6 GROUPS, EFL 74.503 mm MODEL / 74.5 mm PATENT
JP 2021-043376 A↗2021Inventors: Yasuyuki Sugano
Example 5VOIGTLÄNDER APO-LANTHAR 50mm f/2 Aspherical— 10 ELEMENTS / 8 GROUPS, f ≈ 49.3 mm
JP 2021-076740 A↗2021Inventors: Yasuyuki Sugano, Hirokazu Shimada
Example 2VOIGTLÄNDER NOKTON 60mm f/0.95— 11 ELEMENTS / 8 GROUPS, EFL 58.145 mm MODEL / 58.15 mm PATENT
JP 2022-012964 A↗2022Inventors: Yasuyuki Sugano
Example 2VOIGTLÄNDER NOKTON Vintage Line 50mm f/1.5 Aspherical II VM— 8 ELEMENTS / 7 GROUPS, EFL 49.598 mm MODEL / 49.60 mm PATENT
JP 2022-100641 A↗2022Inventors: Yoshihisa Yomogida, Yuki Shibata
Example 1VOIGTLÄNDER ULTRON Vintage Line 28mm f/2 Aspherical— 10 ELEMENTS / 7 GROUPS, f = 28.50 mm
JP 2023-032663 A↗2023Inventors: Yuki Shibata
Example 1VOIGTLÄNDER COLOR-SKOPAR 28mm f/2.8 Aspherical SL IIs— 7 ELEMENTS / 6 GROUPS, EFL 29.430 mm MODEL / 29.4 mm PATENT
JP 2023-049919 A↗2023Inventors: Yuki Shibata
Example 1VOIGTLÄNDER APO-SKOPAR 90mm f/2.8 VM / SL IIs— 7 ELEMENTS / 7 GROUPS, EFL 87.261 mm MODEL / 87.30 mm PATENT
JP 2023-063766 A↗2023Inventors: Kazuhiro Ogino
Example 1VOIGTLÄNDER NOKTON 50mm f/1 Aspherical— 9 ELEMENTS / 7 GROUPS, f = 49.998 mm
JP 2024-107941 A↗2024Inventors: Yoshihisa Yomogida, Yuki Shibata
Example 3VOIGTLÄNDER COLOR-SKOPAR 28mm f/2.8 Aspherical— 8 ELEMENTS / 5 GROUPS, f ≈ 28.900 mm
JP 2024-167569 A↗2024Inventors: Tatsuya Moriyama
Example 1VOIGTLÄNDER ULTRON 27mm f/2— 6 ELEMENTS / 4 GROUPS, PATENT f = 27.8000 mm
JP 2025-58577 A↗2025Inventors: Yuki Shibata
Example 1VOIGTLÄNDER NOKTON 50mm f/1.2 X-Mount— 9 ELEMENTS / 8 GROUPS, f ≈ 48.5 mm
JP 2025-108279 A↗2025Inventors: Yoshihisa Yomogida, Yuki Shibata
Embodiment 1VOIGTLÄNDER APO-LANTHAR 50mm f/3.5 (Type II) VM— 8 ELEMENTS / 6 GROUPS, EFL 49.101 mm MODEL / 49.10 mm PATENT
JP 2026-8235 A↗2026Inventors: Yuki Shibata
Example 1VOIGTLÄNDER APO-ULTRON 90mm f/2 VM— 8 ELEMENTS / 7 GROUPS, 90mm f/2 (MARKETED)
JP 2026-98935 A↗2026Inventors: Nozomu Mishima
Example 2VOIGTLÄNDER APO-LANTHAR 28mm f/2 Aspherical VM— 12 ELEMENTS / 8 GROUPS, 28mm f/2 (PRODUCTION)
JP 2026-120386 A↗2026Inventors: Tatsuya Moriyama
Example 2VOIGTLÄNDER PORTRAIT HELIAR 75mm f/1.8— 6 ELEMENTS / 3 GROUPS, 75 mm marketing · 73.356 mm sharp-state EFL
JP 2026-121744 A↗2026Inventors: Nozomu Mishima
Example 3VOIGTLÄNDER COLOR-SKOPAR 35mm f/3.5 Aspherical— 6 ELEMENTS / 4 GROUPS, 35mm f/3.5 (35.741mm f/3.58 design)
JP H11-326756 A↗1999Inventors: Yoshihisa Yomogida
Example 3VOIGTLÄNDER SUPER WIDE-HELIAR 15mm f/4.5 Aspherical SL— 8 ELEMENTS / 6 GROUPS, PATENT DESIGN: 15.30 mm, f/4.57
Fuji Photo Film Co., Ltd.(1)JP S29-2685 B↗1954Inventors: Ryoichi Doi
Sole exampleFUJIFILM FUJINAR 210mm f/4.5— 4 ELEMENTS / 3 GROUPS, PATENT f′ = 210 mm
Fuji Photo Optical Co., Ltd.(3)JP 2004-302170 A↗2004Inventors: Kazunori Ohno
Example 4HASSELBLAD HC MACRO 120mm f/4— 9 ELEMENTS / 9 GROUPS, f ≈ 118.7 mm
JP S55-560 A↗1980Inventors: Ryoichi Doi, Soho Takahashi
Example 1FUJIFILM EBC FUJINON 85mm f/4 SOFT-FOCUS— 4 ELEMENTS / 4 GROUPS, 85 mm MARKETED; 89.814 mm TRACED DESIGN
JP S56-140311 A↗1981Inventors: Ryoichi Doi, Yutaka Sakai, Kazunori Ohno
Example 1FUJIFILM EBC FUJINON SW 65mm f/5.6 (Fujica GSW690 Professional)— 6 elements / 4 groups, f ≈ 65.0 mm
Fujifilm Corporation(5)JP 2015-161792 A↗2015Also assigned to: Carl Zeiss AG
Inventors: Ryoko Tomioka, Hiroki Saito, Aurélien Dodoc, Michael Pollmann, Jürgen Klein
Example 1CARL ZEISS TOUIT MAKRO-PLANAR T* 50mm f/2.8 Macro— 14 elements / 11 groups, f' = 51.52 mm patent design
JP 2021-15312 A↗2021Inventors: Ryosuke Nagami
Example 3FUJIFILM FUJINON XC 15-45mm f/3.5-5.6 OIS PZ— MARKETED 15-45mm f/3.5-5.6, DESIGN 15.33-43.72mm f/3.58-5.76
JP 2023-001878 A↗2023Inventors: Ryosuke Nagami, Hiroki Saito
Example 7FUJIFILM FUJINON XF 8mm f/3.5 R WR— 12 ELEMENTS / 9 GROUPS, DESIGN f = 8.211 mm
JP 2023-029039 A↗2023Inventors: Takuya Tanaka, Yasutaka Shimada
Example 2FUJIFILM FUJINON XF 56mm f/1.2 R WR— 13 elements / 8 groups, f = 54.453 mm design; 56 mm marketed
JP 2023-033114 A↗2023Inventors: Masaru Yonezawa, Shinkichi Ikeda, Takashi Kunugise, Masanao Kawana
Example 1FUJIFILM FUJINON XF 18-120mm f/4 LM PZ WR— 15 ELEMENTS / 12 GROUPS, DESIGN f = 18.5444-116.8236 mm
Jos. Schneider & Co., Optische Werke(1)JP S42-023896 B↗1967Inventors: Günter Klemt
Numerical Example 1SCHNEIDER-KREUZNACH TECHNIKA SUPER-ANGULON 75mm f/8— 6 ELEMENTS / 4 GROUPS, f = 76.51 mm (75 mm nominal)
Kenko Tokina Co., Ltd.(1)JP 5857306 B2↗2016Inventors: Katsuya Hirano, Eiichi Yasuda
Example 1TOKINA AT-X 70-200mm f/4 PRO FX VCM-S— 19 ELEMENTS / 14 GROUPS, DESIGN f = 72–194 mm
Kino Seimitsu Kogyo K.K.(1)JP S51-63635 A↗1976Inventors: Rinzo Watanabe, Ellis I. Betensky
Sole exampleVIVITAR SERIES 1 70-210mm f/3.5 VMC MACRO FOCUSING AUTO ZOOM— 15 ELEMENTS / 10 GROUPS, 70-210mm (PATENT 70-205mm)
Konica Corporation(2)JP H05-164961 A↗1993Inventors: Yoshio Shimazaki
Example 1KONICA HEXAR 35mm f/2 (Konica Hexar AF)— 7 elements / 6 groups, f = 34.99 mm
JP H11-160615 A↗1999Inventors: Toshiji Yamashita
Example 1KONICA HEXANON 60mm f/1.2 L— 7 ELEMENTS / 6 GROUPS, 60mm MARKETED / 58.2635mm DESIGN EFL
Konica Minolta, Inc.(10)JP 2016-021011 A↗2016Also assigned to: Nikon Corporation
Inventors: Yasunari Fukuda, Atsuo Masui, Kosuke Machida
Example 4NIKON AF-S NIKKOR 20mm f/1.8 G ED— 13 elements / 11 groups, f = 20.600 mm design EFL
JP 2016-090725 A↗2016Inventors: Hiroaki Tanaka
Example 9LEICA APO-MACRO-ELMARIT-TL 60mm f/2.8 ASPH.— 10 ELEMENTS / 9 GROUPS, f ≈ 60.0 mm
JP 2016-133764 A↗2016Inventors: Atsuo Masui, Yasunari Fukuda
Example 6LEICA SUPER-VARIO-ELMAR-TL 11-23mm f/3.5-4.5 ASPH.— 14 ELEMENTS / 11 GROUPS, MODEL EFL ≈ 11.308-22.366 mm
JP 2017-003807 A↗2017Also assigned to: Nikon Corporation
Inventors: Yasunari Fukuda, Kana Inoue, Akiko Furuta
Example 4NIKON AF-S NIKKOR 24mm f/1.8 G ED— 12 elements / 9 groups, 24 mm f/1.8 marketed
JP 2017-161685 A↗2017Also assigned to: Nikon Corporation
Inventors: Ryosuke Imajima, Yasunari Fukuda, Toshinori Take, Takayuki Sensui
Example 1NIKON PC NIKKOR 19mm f/4 E ED— 17 ELEMENTS / 13 GROUPS (18 physical), f ≈ 19.4 mm
JP 2017-227799 A↗2017Also assigned to: Nikon Corporation
Inventors: Yasunari Fukuda, Akiko Furuta, Toshinori Take, Takayuki Sensui
Example 1NIKON AF-S NIKKOR 28mm f/1.4 E ED— 14 ELEMENTS / 11 GROUPS, f = 28.41 mm
JP 2018-087903 A↗2018Inventors: Yoshihito Souma
Example 1LEICA SUPER-VARIO-ELMAR-SL 16-35mm f/3.5-4.5 ASPH.— 18 ELEMENTS / 12 GROUPS, 16-35mm marketed; 16.399-34.194mm computed design EFL
JP 2019-090947 A↗2019Also assigned to: Nikon Corporation
Inventors: Keiko Yamada, Ryosuke Imajima, Wataru Tatsuno, Haruo Sato
Example 4NIKON NIKKOR Z 35mm f/1.8 S— 35mm, f/1.8
JP 2020-173366 A↗2020Also assigned to: Nikon Corporation
Inventors: Ryosuke Imajima, Takakazu Hirose, Daisuke Tanahashi, Yasushi Yamamoto, Mami Muratani
Example 3NIKON NIKKOR Z 85mm f/1.8 S— 12 ELEMENTS / 8 GROUPS, f = 83.0 mm (source summary)
JP 2021-189377 A↗2021Also assigned to: Nikon Corporation
Inventors: Takakazu Hirose, Keiko Yamada, Yasushi Yamamoto, Hiroshi Yamamoto
Example 1NIKON NIKKOR Z 24-50mm f/4-6.3— 11 ELEMENTS / 10 GROUPS, f = 24.7–48.5 mm
Konishiroku Photo Industry Co., Ltd.(13)JP 1974-023892 B1↗1974Inventors: Masamichi Kitagawa
Example 1KONICA FL-HEXANON AR 300mm f/6.3— 9 ELEMENTS / 5 GROUPS, 300mm f/6.3 (MARKETED)
JP 1976-026535 A↗1976Inventors: Toshiko Shimokura
Example 1KONICA UC HEXANON AR 28mm f/1.8— 8 ELEMENTS / 8 GROUPS, MODELED EFL 28.1585 mm
JP 1979-030821 A↗1979Inventors: Toshiko Shimokura
Example 1KONICA HEXANON AR 40mm f/1.8— 6 ELEMENTS / 5 GROUPS, 40 mm
JP 1979-055423 A↗1979Inventors: Toshiko Shimokura
Example 1KONICA HEXANON AR 135mm f/3.5— 4 ELEMENTS / 4 GROUPS, 135mm f/3.5
JP 1980-017129 A↗1980Inventors: Toshiko Shimokura
Example 1KONICA HEXANON AR 21mm f/2.8— 9 ELEMENTS / 8 GROUPS, MODELED EFL 20.9973 mm
JP 1980-021005 A↗1980Inventors: Tadashi Kojima, Reiko Mao
Example 1KONICA ZOOM-HEXANON AR 35-70mm f/3.5— 9 ELEMENTS / 9 GROUPS, 35–70mm
JP 1980-087117 A↗1980Inventors: Toshiko Shimokura
Example 1KONICA HEXANON AR 24mm f/2.8— 8 ELEMENTS / 8 GROUPS, 24mm
JP 1982-019708 A↗1982Inventors: Tadashi Kojima, Takashi Matsumaru
Example 1KONICA ZOOM-HEXANON AR 35-70mm f/4— 8 ELEMENTS / 7 GROUPS, 35-70mm MARKETING / 36.003-68.092mm PATENT
JP 1982-108817 A↗1982Inventors: Ryoko Watabe, Toshiko Shimokura
Example 1KONICA HEXANON AR 50mm f/1.8— 6 ELEMENTS / 5 GROUPS, 50mm
JP 1983-137812 A↗1983Inventors: Makoto Sakano, Norikazu Arai, Shozo Ishiyama, Tadashi Kojima, Hiroshi Miyamae
Example 1KONICA ZOOM-HEXANON AR 70-150mm f/4— 15 ELEMENTS / 12 GROUPS, 70–150mm f/4 (marketed)
JP 1983-149014 A↗1983Inventors: Norikazu Arai, Hiroshi Miyamae, Shozo Ishiyama, Makoto Sakano, Tadashi Kojima
Example 3KONICA ZOOM-HEXANON AR 65-135mm f/4— 13 ELEMENTS / 9 GROUPS, 65–135mm MARKETED / 66.290–135.095mm MODELED
JP S51-34741 A↗1976Inventors: Tadashi Kojima
Example 1KONICA UC ZOOM HEXANON AR 45-100mm f/3.5— 11 ELEMENTS / 10 GROUPS, 45–100mm MARKETING / 46.76–99.18mm PATENT
JP S51-37247 A↗1976Inventors: Hideo Shizume
Sole exampleKONICA UC ZOOM HEXANON AR 80-200mm f/4— 14 ELEMENTS / 10 GROUPS, 80–200mm f/4
Mamiya Koki Co., Ltd.(5)JP 1978-066222 A↗1978Inventors: Katsunori Ebara
Sole exampleMAMIYA-SEKOR CS 35mm f/2.8— 6 ELEMENTS / 6 GROUPS, f = 34.988 mm (MODELED)
JP 1981-119109 A↗1981Inventors: Yusuke Nanjo
Sole exampleMAMIYA-SEKOR ZOOM E 28-50mm f/3.5-4.5— 9 ELEMENTS / 8 GROUPS, 28-47.55 mm DESIGN / 28-50 mm MARKETED
JP S52-141223 A↗1977Inventors: Yusuke Nanjo
Example 1MAMIYA-SEKOR SFC 150mm f/4 SOFT FOCUS— 5 ELEMENTS / 3 GROUPS, f = 150.026 mm (MODELED)
JP S54-107336 A↗1979Inventors: Yusuke Nanjo
Example 1MAMIYA-SEKOR C 55mm f/2.8 N— 8 ELEMENTS / 6 GROUPS, f = 54.9999 mm
JP S55-24081 B2↗1980Inventors: Masayoshi Okazaki
Sole exampleMAMIYA-SEKOR MACRO C 80mm f/4— 6 ELEMENTS / 4 GROUPS, f = 80.121 mm (DESIGN)
Mamiya-OP Co., Ltd.(4)JP 1997-297263 A↗1997Inventors: Hisataro Shimada
Example 1MAMIYA SEKOR AF 55mm f/2.8— 7 ELEMENTS / 6 GROUPS, f = 54.99997 mm (DESIGN)
JP 2000-028919 A↗2000Inventors: Hideyuki Suga
Example 1MAMIYA N 210mm f/8 L— 7 ELEMENTS / 5 GROUPS, f = 209.958 mm (SCALED DESIGN)
JP 2001-183581 A↗2001Inventors: Hideyuki Suga
Example 1MAMIYA SEKOR AF 150mm f/2.8 IF D— 8 ELEMENTS / 7 GROUPS, f = 149.790 mm (DESIGN)
JP H10-206729 A↗1998Inventors: Hideyuki Suga
Example 1MAMIYA AF APO 300mm f/4.5 IF— 8 ELEMENTS / 8 GROUPS, 300mm f/4.5
Minolta Camera Co., Ltd.(10)JP 1963-011590 B↗1963Inventors: Tadayoshi Nito
Example 2MINOLTA AUTO TELE ROKKOR-PF 100mm f/2— 6 ELEMENTS / 5 GROUPS, f = 100 mm
JP 1969-025743 B↗1969Inventors: Toshinobu Ogura
Example 2MINOLTA MC W.ROKKOR-SG 28mm f/3.5— 7 elements / 7 groups, 28mm
JP 1987-244010 A↗1987Inventors: Naoshi Okada, Hisashi Tokumaru
Example 2MINOLTA AF 100mm f/2— 7 ELEMENTS / 6 GROUPS, 100mm f/2
JP 1987-249119 A↗1987Inventors: Tetsuya Arimoto
Example 4MINOLTA AF 20mm f/2.8— 10 ELEMENTS / 9 GROUPS, 20mm
JP 1988-201614 A↗1988Inventors: Hisashi Tokumaru
Example 4MINOLTA AF 35mm f/2— 7 ELEMENTS / 6 GROUPS, 35mm MARKETING / 35.0002mm MODELED
JP 1989-039542 A↗1989Inventors: Hisashi Tokumaru, Masakuni Tai
Example 1MINOLTA AF 80-200mm f/2.8 APO— 16 ELEMENTS / 13 GROUPS, DESIGN 82-195mm
JP H01-193709 A↗1989Inventors: Hisashi Tokumaru, Shuji Ogino
Example 1MINOLTA MD ZOOM 28-85mm f/3.5-4.5— 13 ELEMENTS / 10 GROUPS, f ≈ 28.8–82.5 mm
JP S51-62037 A↗1976Inventors: Tamikazu Yamaguchi
Example 1MINOLTA MD TELE ROKKOR 135mm f/2.8— 4 ELEMENTS / 4 GROUPS, Computed f = 134.969 mm
JP S56-150717 A↗1981Inventors: Hisashi Tokumaru, Mitsuo Yasukuni
Example 1MINOLTA MD ZOOM 75-150mm f/4— 12 ELEMENTS / 8 GROUPS, f = 77–146 mm (design)
JP S56-158314 A↗1981Inventors: Akiyoshi Nakamura
Example 1MINOLTA MD ZOOM 24-35mm f/3.5— 10 ELEMENTS / 10 GROUPS, f ≈ 24.6–34.1 mm
Minolta Co., Ltd.(4)JP 1994-082698 A↗1994Inventors: Yoshinobu Asakura
Example 1MINOLTA AF 28-70mm f/2.8 G— 16 ELEMENTS / 11 GROUPS, 4-GROUP N-P-N-P ZOOM
JP 1996-327896 A↗1996Inventors: Yoshinobu Asakura
Example 1MINOLTA AF 400mm f/4.5 APO G— 8-ELEMENT / 6-GROUP PATENT MODEL, 390 mm PATENT HEADER / 391.43 mm COMPUTED EFL
JP 1999-231209 A↗1999Inventors: Yoshinobu Kudo
Example 1MINOLTA AF 135mm f/2.8 [T4.5] STF— 8 ELEMENTS / 6 GROUPS, 135mm f/2.8 [T4.5] STF
JP 2004-109559 A↗2004Inventors: Hiroyuki Matsumoto, Mamoru Terada
Example 1MINOLTA AF 70-200mm f/2.8 APO G (D) SSM— Patent Example 1: 19 elements / 15 air-spaced optical clusters, Production class: 70-200mm f/2.8 A-mount
Miranda Camera Co., Ltd.(3)JP S51-053823 A↗1976Inventors: Kunio Shimada
Example 1MIRANDA AUTO EC 35mm f/2.8— 6 ELEMENTS / 6 GROUPS, 35mm f/2.8
JP S51-074627 A↗1976Inventors: Kunio Shimada
Sole exampleMIRANDA AUTO EC 135mm f/2.8— 5 ELEMENTS / 4 GROUPS, 135 mm nominal / 137.434 mm computed
JP S51-114926 A↗1976Inventors: Kunio Shimada
Sole exampleMIRANDA AUTO EC 200mm f/3.5— 6 ELEMENTS / 5 GROUPS, f = 200.28 mm
Nikon Corporation(40)JP 2000-19398 A↗2000Inventors: Susumu Sato
Example 1NIKON AI AF-S ZOOM-NIKKOR 80-200mm f/2.8 D IF-ED— 18 ELEMENTS / 14 GROUPS, MARKETED 80-200mm f/2.8
JP 2000-321497 A↗2000Inventors: Haruo Sato
Example 1NIKON AI AF ZOOM-NIKKOR 24-85mm f/2.8-4 D IF— 15 ELEMENTS / 11 GROUPS, DESIGN f = 24.7-82.5 mm
JP 2001-083421 A↗2001Inventors: Naoko Fukuda
Example 1NIKON AF-S ZOOM-NIKKOR 17-35mm f/2.8 D IF-ED— 13 ELEMENTS / 10 GROUPS, 17.50–34.00 mm DESIGN STATIONS
JP 2003-005030 A↗2003Inventors: Kouichi Ohshita
Example 6NIKON AI NIKKOR 45mm f/2.8 P— 4 elements / 3 groups, f ≈ 45.0 mm
JP 2003-177313 A↗2003Inventors: Kouichi Ohshita, Mami Muratani
Example 1NIKON ZOOM-NIKKOR 8-24mm f/2.8-4.9 (Nikon COOLPIX 4300)— 9 ELEMENTS / 8 GROUPS, 3-GROUP ZOOM
JP 2003-241093 A↗2003Inventors: Satoshi Hayakawa
Example 2NIKON AF-S ZOOM-NIKKOR 24-85mm f/3.5-4.5 G IF-ED— 15 ELEMENTS / 12 GROUPS, PATENT f = 25.0-82.5 mm
JP 2008-151949 A↗2008Inventors: Takayuki Sensui
Example 2NIKON PC-E NIKKOR 24mm f/3.5 D ED— 13 ELEMENTS / 10 GROUPS, f ≈ 24.6 mm
JP 2011-221421 A↗2011Inventors: Hiroshi Yamamoto
Example 4NIKON AF-S NIKKOR 24-85mm f/3.5-4.5 G ED VR— 16 PHYSICAL ELEMENTS / 11 AIR-SPACED COMPONENTS / 5 ZOOM GROUPS, PATENT DESIGN 24.70-87.20 mm
JP 2011-248340 A↗2011Inventors: Toshinori Take
Example 1NIKON 1 NIKKOR 10mm f/2.8— 6 elements / 5 groups, f = 10.300 mm patent; 10 mm marketed
JP 2013-019993 A↗2013Inventors: Haruo Sato
Example 2NIKON AF-S NIKKOR 58mm f/1.4 G (patent design candidate)— 9 ELEMENTS / 5 GROUPS · PATENT DESIGN CANDIDATE, RELATED TO AF-S NIKKOR 58mm f/1.4G
JP 2013-250293 A↗2013Inventors: Masashi Yamashita, Mitsuaki Wada
Example 1NIKON AF-S NIKKOR 800mm f/5.6 E FL ED VR— 20 LENS ELEMENTS / 13 GROUPS + PROTECTIVE GLASS, PATENT DESIGN EFL ≈ 779.921 mm
JP 2014-209144 A↗2014Also assigned to: Tamron Co., Ltd.
Inventors: Taku Matsuo, Takeshi Suzuki, Haruo Sato, Hisayuki Yamanaka
Example 2NIKON AF-S NIKKOR 200-500mm f/5.6 E ED VR— 19 ELEMENTS / 12 GROUPS, f = 205–487 mm
JP 2015-102852 A↗2015Inventors: Makoto Fujimoto
Example 1NIKON AF-S NIKKOR 300mm f/4 E PF ED VR— 300 mm f/4 (marketed), 16 elements / 10 groups
JP 2015-215559 A↗2015Inventors: Kazumasa Tanaka, Toshinori Take, Satoshi Miwa
Example 1NIKON AF-S NIKKOR 400mm f/2.8 E FL ED VR— 16 ELEMENTS / 12 GROUPS, 2 FLUORITE + 2 ED
JP 2015-215560 A↗2015Inventors: Masashi Yamashita, Satoshi Miwa
Example 1NIKON AF-S NIKKOR 500mm f/4 E FL ED VR— 16 ELEMENTS / 12 GROUPS, 2 FLUORITE + 3 ED
JP 2016-021011 A↗2016Also assigned to: Konica Minolta, Inc.
Inventors: Yasunari Fukuda, Atsuo Masui, Kosuke Machida
Example 4NIKON AF-S NIKKOR 20mm f/1.8 G ED— 13 elements / 11 groups, f = 20.600 mm design EFL
JP 2017-003807 A↗2017Also assigned to: Konica Minolta, Inc.
Inventors: Yasunari Fukuda, Kana Inoue, Akiko Furuta
Example 4NIKON AF-S NIKKOR 24mm f/1.8 G ED— 12 elements / 9 groups, 24 mm f/1.8 marketed
JP 2017-068114 A↗2017Inventors: Satoshi Miwa, Hiroshi Yamamoto, Haruo Sato
Example 1NIKON AF-S FISHEYE NIKKOR 8-15mm f/3.5-4.5 E ED— 18 ELEMENTS / 13 GROUPS — PATENT EXAMPLE, 8.17997–15.45007mm DESIGN
JP 2017-161685 A↗2017Also assigned to: Konica Minolta, Inc.
Inventors: Ryosuke Imajima, Yasunari Fukuda, Toshinori Take, Takayuki Sensui
Example 1NIKON PC NIKKOR 19mm f/4 E ED— 17 ELEMENTS / 13 GROUPS (18 physical), f ≈ 19.4 mm
JP 2017-227799 A↗2017Also assigned to: Konica Minolta, Inc.
Inventors: Yasunari Fukuda, Akiko Furuta, Toshinori Take, Takayuki Sensui
Example 1NIKON AF-S NIKKOR 28mm f/1.4 E ED— 14 ELEMENTS / 11 GROUPS, f = 28.41 mm
JP 2018-017857 A↗2018Inventors: Satoshi Miwa, Hiroshi Yabumoto
Example 2NIKON AF-S NIKKOR 500mm f/5.6 E PF ED VR— 19 elements / 11 groups, 500 mm f/5.6 marketed
JP 2019-008031 A↗2019Inventors: Takeru Uehara
Example 1NIKON NIKKOR Z 14-30mm f/4 S— 14 ELEMENTS / 12 GROUPS, f = 14.42–29.10 mm
JP 2019-090947 A↗2019Also assigned to: Konica Minolta, Inc.
Inventors: Keiko Yamada, Ryosuke Imajima, Wataru Tatsuno, Haruo Sato
Example 4NIKON NIKKOR Z 35mm f/1.8 S— 35mm, f/1.8
JP 2020-173366 A↗2020Also assigned to: Konica Minolta, Inc.
Inventors: Ryosuke Imajima, Takakazu Hirose, Daisuke Tanahashi, Yasushi Yamamoto, Mami Muratani
Example 3NIKON NIKKOR Z 85mm f/1.8 S— 12 ELEMENTS / 8 GROUPS, f = 83.0 mm (source summary)
JP 2020-177057 A↗2020Inventors: Masashi Yamashita, Toshinori Take
Example 1NIKON AF-S NIKKOR 120-300mm f/2.8 E FL ED SR VR— 25 ELEMENTS / 19 GROUPS, f = 123.6–291.0 mm (patent)
JP 2021-36283 A↗2021Inventors: Masashi Yamashita, Tomoki Ito, Tomonori Kuribayashi, Keigo Koida, Satoshi Miwa, Yoko Komatsubara, Katsuya Watanabe, Azuna Nonaka, Ayumu Makida
Example 1NIKON AF NIKKOR 35mm f/2 D— 6 ELEMENTS / 5 GROUPS, f = 36.000 mm (patent)
JP 2021-189351 A↗2021Inventors: Keigo Koida
Example 4NIKON NIKKOR Z 40mm f/2— 6 ELEMENTS / 4 GROUPS, f ≈ 41.2 mm
JP 2021-189377 A↗2021Also assigned to: Konica Minolta, Inc.
Inventors: Takakazu Hirose, Keiko Yamada, Yasushi Yamamoto, Hiroshi Yamamoto
Example 1NIKON NIKKOR Z 24-50mm f/4-6.3— 11 ELEMENTS / 10 GROUPS, f = 24.7–48.5 mm
JP 2022-092388 A↗2022Inventors: Hiroshi Yabumoto
Example 1NIKON NIKKOR Z 100-400mm f/4.5-5.6 VR S— 25 elements / 20 groups, Patent nd; Abbe numbers inferred
JP 2023-23323 A↗2023Inventors: Masaki Ito, Satoshi Miwa, Fumiaki Ohtake
Example 6NIKON NIKKOR Z 800mm f/6.3 VR S— 22 ELEMENTS / 14 GROUPS, PATENT f = 779.99933 mm
JP 2025-052870 A↗2025Inventors: Masaki Harada, Toshiyuki Shimada
Numerical Example 1NIKON NIKKOR Z 35mm f/1.2 S— 17 ELEMENTS / 15 GROUPS, f = 34.4 mm (patent) · 35 mm (marketed)
JP 3909533 B2↗2007Inventors: Haruo Sato
Example 5NIKON IX-NIKKOR 30-60mm f/4-5.6— 6 ELEMENTS / 6 GROUPS, DESIGN f = 30.88–58.55 mm
JP H02-19814 A↗1990Inventors: Keiji Moriyama
Example 5NIKON AI AF MICRO-NIKKOR 105mm f/2.8 S— 9 ELEMENTS / 8 GROUPS, f = 105.000 mm PATENT / 105.001 mm TRACE
JP H04-238311 A↗1992Inventors: Susumu Sato
Example 5NIKON AF-I NIKKOR 600mm f/4 D IF-ED— 9 ELEMENTS / 7 GROUPS, MARKETED 600mm f/4
JP H04-294310 A↗1992Inventors: Susumu Sato
Example 1NIKON AF-I NIKKOR 300mm f/2.8 D IF-ED— 300mm f/2.8, PATENT F=293.9647mm / FN=2.9
JP H06-235857 A↗1994Inventors: Kouichi Ohshita
Example 2NIKON 28mm f/3.5 (Nikon AF600 / AF600 QD)— 3 ELEMENTS / 3 GROUPS, f ≈ 27.998 mm
JP H9-105860 A↗1997Inventors: Kouichi Ohshita
Example 1NIKON DODOTTO 400mm f/8— 4 ELEMENTS / 2 GROUPS, f = 390.0 mm design / 400 mm marketed
JP H11-030748 A↗1999Inventors: Keiji Moriyama
Example 1NIKON AF ZOOM-NIKKOR 28-80mm f/3.5-5.6 D— 8 elements / 8 air-spaced groups, 2 zoom groups: G1 (-) / G2 (+)
JP WO2020/105107 A1↗2020Inventors: Takahiro Ishikawa, Norikazu Yokoi
Example 1NIKON NIKKOR Z DX 50-250mm f/4.5-6.3 VR— Production: 50-250 mm, f/4.5-6.3, Patent Example 1: f = 51.50-242.80 mm
JP WO2020/157904 A1↗2020Inventors: Ayumu Makida, Tomoki Ito, Satoshi Miwa
Example 1NIKON NIKKOR Z 24-200mm f/4-6.3 VR— 19 ELEMENTS / 15 GROUPS, f = 24.7–194.0 mm (design)
Nippon Kogaku K.K.(12)JP 1964-025754 B↗1964Inventors: Saburo Murakami
Sole exampleNIKON NIKKOR-S AUTO 5cm f/2— 7 ELEMENTS / 5 GROUPS, EFL 50.006 mm
JP 1966-017177 B↗1966Inventors: Saburo Murakami
Sole exampleNIKON NIKKOR-S AUTO 5.8cm f/1.4— 7 ELEMENTS / 6 GROUPS, f = 58.0059 mm
JP 1968-030782 Y1↗1968Inventors: Zenji Wakimoto
Example 2NIKON NIKKOR-O 2.1cm f/4— 8 ELEMENTS / 4 GROUPS, f = 21.000 mm
JP 1981-035116 A↗1981Inventors: Soichi Nakamura, Kazuo Arashida
Example 1NIKON AI NIKKOR 600mm f/5.6 IF-ED— 7 ELEMENTS / 6 GROUPS, 600mm f/5.6
JP S38-26133 B↗1963Inventors: Zenji Wakimoto
Sole exampleNIKON NIKKOR-H AUTO 2.8cm f/3.5— 6 elements / 6 groups, f ≈ 28.0 mm
JP S42-9417 B↗1967Inventors: Zenji Wakimoto
Sole exampleNIKON UV-NIKKOR AUTO 55mm f/4— 3 elements / 3 groups, f ≈ 55.03 mm
JP S48-71634 A↗1973Inventors: Tomowaki Takahashi
NIKON NIKKOR-QD·C AUTO 15mm f/5.6— 14 ELEMENTS / 12 GROUPS + BUILT-IN FILTER, MODELED EFL 15.309 mm
JP S53-57028 A↗1978Inventors: Ikuo Mori
Example 1NIKON NIKKOR-SW 75mm f/4.5— 7 ELEMENTS / 4 GROUPS, MODELED EFL 74.998 mm
JP S55-163511 A↗1980Inventors: Satoshi Mogami
Example 1NIKON SERIES E ZOOM 36-72mm f/3.5— 8 ELEMENTS / 8 AIR-SPACED GROUPS, 2 MOVING ZOOM GROUPS
JP S58-54312 A↗1983Inventors: Yoshinari Hamanishi
Example 2NIKON AI-S ZOOM-NIKKOR 80-200mm f/2.8 ED— 15 ELEMENTS / 11 GROUPS, 80-200mm
JP S61-090115 A↗1986Inventors: Koichi Wakamiya
Example 4NIKON UV-NIKKOR 105mm f/4.5— 6 elements / 6 groups, f = 105 mm
JP S62-108218 A↗1987Inventors: Yoshinari Hamanishi
Example 3NIKON AI AF ZOOM-NIKKOR 80-200mm f/2.8 ED— 16 ELEMENTS / 11 GROUPS, 80-196 mm DESIGN
Olympus Corporation(1)JP 2017-090535 A↗2017Inventors: Tetsuya Yanai, Toyonori Kon, Daichi Murakami, Yuki Kubota
Numerical Example 1OLYMPUS M.ZUIKO DIGITAL ED 12-100mm f/4.0 IS PRO— 12-100mm f/4.0, Patent f=12.36-97.98mm, F/4.08
Olympus Imaging Corporation(3)JP 2010-186010 A↗2010Inventors: Yasuharu Yamada, Takeshi Hosoya
Numerical Example 1OLYMPUS M.ZUIKO DIGITAL ED 14-42mm f/3.5-5.6— 9 ELEMENTS / 8 GROUPS, DESIGN f = 14.29-41.19 mm
JP 2012-173420 A↗2012Inventors: Koji Ogata, Kazuteru Kawamura, Yasuharu Yamada, Hirohiko Kimata
Numerical Example 2OLYMPUS M.ZUIKO DIGITAL ED 12-50mm f/3.5-6.3 EZ— 10 ELEMENTS / 9 GROUPS, DESIGN f = 12.24-48.96 mm
JP 2013-186458 A↗2013Inventors: Yasuharu Yamada, Daichi Murakami, Yuki Kubota
Numerical Example 3OLYMPUS M.ZUIKO DIGITAL 17mm f/1.8— 17mm f/1.8, Patent f = 17.30 mm / FNO = 1.716
Olympus Optical Co., Ltd.(3)JP H05-042643 B2↗1993Inventors: Masaki Imaizumi
Example 1OLYMPUS ZUIKO AUTO-T 180mm f/2— 10 ELEMENTS / 8 GROUPS, DESIGN f = 100 (NORMALIZED; SCALED 1.8× TO 180 mm)
JP S38-9224 B↗1963Inventors: Yoshisada Hayamizu
Sole exampleOLYMPUS G.ZUIKO AUTO-T 60mm f/1.5— 7 ELEMENTS / 5 GROUPS, DESIGN f = 60.00 mm
JP S39-18282 Y1↗1964Inventors: Saburo Yanagawa, Jihei Nakagawa
Sole exampleOLYMPUS G.ZUIKO AUTO-W 25mm f/2.8— 7 ELEMENTS / 5 GROUPS, DESIGN f = 25.00 mm
OM Digital Solutions Corporation(1)JP 2024-066164 A↗2024Inventors: Yasuharu Yamada
Example 1OM SYSTEM M.ZUIKO DIGITAL ED 90mm f/3.5 MACRO IS PRO— 18 ELEMENTS / 13 GROUPS, DESIGN f = 88.21 mm
Panasonic Corporation(1)JP 2011-48232 A↗2011Inventors: Koji Hoshi, Kyoichi Miyazaki, Noriyuki Adachi
Numerical Example 3PANASONIC LEICA DG MACRO-ELMARIT 45mm f/2.8 ASPH. MEGA O.I.S.— 14 ELEMENTS / 10 GROUPS, 1 ASPHERICAL ELEMENT / 1 ED ELEMENT
Panasonic Intellectual Property Management Co., Ltd.(8)JP 2016-139125 A↗2016Inventors: Takuya Imaoka
Numerical Example 1LEICA APO-VARIO-ELMARIT-SL 90-280mm f/2.8-4— 23 ELEMENTS / 7 GROUPS (17 SUB-GROUPS), f = 92.3–272.9 mm
JP 2020-118738 A↗2020Inventors: Hiroaki Suzuki, Yuka Kudo, Yoshiaki Kurioka
Embodiment 1PANASONIC LUMIX S 24-105mm f/4 MACRO O.I.S.— 16 ELEMENTS / 13 GROUPS, DESIGN f = 25.003-100.569 mm
JP 2021-076829 A↗2021Inventors: Takahiro Kitaguchi
Embodiment 1PANASONIC LUMIX S PRO 16-35mm f/4— 12 LENS ELEMENTS / 9 GROUPS, 16.5534-33.8782 mm DESIGN
JP 2021-179551 A↗2021Inventors: Takahiro Kitada, Yuka Kudo, Masafumi Sueyoshi, Jindong Li
Numerical Example 2PANASONIC LUMIX S 20-60mm f/3.5-5.6— 11 ELEMENTS / 9 GROUPS, f = 20.8–57.6 mm
JP 2022-099402 A↗2022Inventors: Takehiro Nishioka
Numerical Example 1HASSELBLAD XCD 90mm f/2.5 V— 9 ELEMENTS / 6 GROUPS, f ≈ 90.0 mm
JP 2022-125453 A↗2022Inventors: Takahiro Kitada, Takehiro Nishioka, Yoshio Matsumura, Takakazu Bito
Embodiment 1PANASONIC LUMIX S 70-300mm f/4.5-5.6 MACRO O.I.S.— 17 ELEMENTS / 11 GROUPS, 7 ZOOM GROUPS (+/−/+/+/−/+/−)
JP 2022-182997 A↗2022Inventors: Yasuto Suzuki, Yoshiaki Kurioka, Shunichiro Yoshinaga
Numerical Example 1LEICA SUMMICRON-SL 50mm f/2 ASPH.— 9 ELEMENTS / 8 GROUPS, DESIGN f = 48.25 mm
JP 6814931 B2↗2021Inventors: Takahiro Kitada, Shunichiro Yoshinaga, Takakazu Bito
Numerical Example 2PANASONIC LUMIX G VARIO 12-60mm f/3.5-5.6 ASPH. POWER O.I.S.— 11 ELEMENTS / 9 GROUPS, DESIGN f = 12.46–57.78 mm
Ricoh Co., Ltd.(5)JP 2010-72639 A↗2010Inventors: Yoshifumi Sudoh
Example 4RICOH GR LENS 6.0mm f/1.9 (Ricoh GR DIGITAL III)— 8 ELEMENTS / 6 GROUPS, 6.0 mm
JP 2010-164839 A↗2010Inventors: Yoshifumi Sudoh
Example 4RICOH GR LENS 6.0mm f/1.9 (Ricoh GR DIGITAL IV)— 8 ELEMENTS / 6 GROUPS, 6.0 mm
JP 2012-003015 A↗2012Inventors: Takashi Kubota
Example 1RICOH GR LENS A12 28mm f/2.5 (Ricoh GXR A12)— 9 ELEMENTS / 6 GROUPS, f = 18.24 mm (28 mm equiv.)
JP 2022-117775 A↗2022Inventors: Tomoya Koga, Yuichiro Ehashi, Takashi Enomoto
Numerical Example 1PENTAX HD D FA 21mm f/2.4 ED Limited DC WR— 11 elements / 8 groups, f = 21.32 mm design
JP 2025-069516 A↗2025Inventors: Takahiro Nakayama
Numerical Example 2RICOH GR LENS 18.3mm f/2.8 (Ricoh GR IV)— 7 ELEMENTS / 5 GROUPS, f ≈ 18.35 mm
Ricoh Imaging Company, Ltd.(4)JP 2015-11156 A↗2015Inventors: Takahiko Ohishi
Numerical Example 1PENTAX HD DA 20-40mm f/2.8-4 ED Limited DC WR— 9 ELEMENTS / 8 GROUPS, 20–40mm f/2.8–4 (production)
JP 2015-87681 A↗2015Inventors: Tatsuyuki Onozaki
Numerical Example 1PENTAX HD DA645 28-45mm f/4.5 ED AW SR— 17 PHYSICAL LENSES / 12 GROUPS, 28-45mm f/4.5 MARKETED
JP 2016-6455 A↗2016Inventors: Tomoya Koga
Numerical Example 2PENTAX HD DA 18-50mm f/4-5.6 DC WR RE— 11 ELEMENTS / 8 GROUPS, 18-50mm F4-5.6
JP 2016-114800 A↗2016Inventors: Yoichi Nomura
Numerical Example 1PENTAX HD DA 16-85mm f/3.5-5.6 ED DC WR— 16 ELEMENTS / 12 GROUPS, 16-85mm f/3.5-5.6 (marketing)
Sigma Corporation(62)JP 2001-108902 A↗2001Inventors: Tomoki Kono
Numerical Example 1SIGMA APO 50-500mm f/4-6.3 EX RF HSM— 20 ELEMENTS / 16 GROUPS, DESIGN f = 50.16–483.77 mm
JP 2001-330771 A↗2001Inventors: Shizuka Takemoto, Norikazu Yokoi
Numerical Example 1SIGMA 28mm f/1.8 EX DG ASPHERICAL MACRO— 10 ELEMENTS / 9 GROUPS, DESIGN f = 27.10 mmNumerical Example 2SIGMA 24mm f/1.8 EX DG ASPHERICAL MACRO— 10 ELEMENTS / 9 GROUPS, DESIGN f = 24.69 mm
JP 2002-236254 A↗2002Inventors: Norikazu Yokoi, Tetsusuke Kusakawa, Shizuka Takemoto
Numerical Example 2SIGMA 24-70mm f/3.5-5.6 ASPHERICAL HF— 9 ELEMENTS / 7 GROUPS, DESIGN f = 25.0-67.6 mm
JP 2004-061605 A↗2004Inventors: Tomoki Kono
Numerical Example 1SIGMA APO 80-400mm f/4.5-5.6 EX OS— 20 ELEMENTS / 14 GROUPS, DESIGN f = 81.24-389.46 mm
JP 2006-201524 A↗2006Inventors: Tomoki Kono
Example 1OLYMPUS ZUIKO DIGITAL ED 90-250mm f/2.8— 17 ELEMENTS / 12 GROUPS, DESIGN f = 90.95–248.91 mm
JP 2008-020656 A↗2008Inventors: Yutaka Kamimura, Ai Hoshina
Numerical Example 1SIGMA MACRO 70mm f/2.8 EX DG— 10 ELEMENTS / 9 GROUPS, DESIGN f = 68.91 mm
JP 2008-040033 A↗2008Inventors: Shizuka Yoshino
Example 1SIGMA 16.6mm f/4 (Sigma DP1x)— 6 elements / 5 groups, f = 16.6 mm (design 16.67 mm)
JP 2009-058817 A↗2009Inventors: Ai Hoshina
Example 3SIGMA 4.5mm f/2.8 EX DC CIRCULAR FISHEYE HSM— 13 ELEMENTS / 9 GROUPS, DESIGN f = 4.45 mm
JP 2010-101979 A↗2010Inventors: Noriyuki Ogasawara
Numerical Example 5SIGMA 24mm f/2.8 (Sigma DP2x)— 7 ELEMENTS / 6 GROUPS, f ≈ 24.1 mm
JP 2010-217838 A↗2010Inventors: Tomoki Kono
Example 1SIGMA 70-300mm f/4-5.6 DG OS— 16 ELEMENTS / 11 GROUPS, DESIGN f = 70.33-290.5 mm
JP 2011-039260 A↗2011Inventors: Tomoki Kono
Numerical Example 2SIGMA APO 50-500mm f/4.5-6.3 DG OS HSM— 22 ELEMENTS / 16 GROUPS, DESIGN f = 51.50–485.00 mm
JP 2011-170128 A↗2011Inventors: Yukihiro Yamamoto
Numerical Example 5SIGMA 85mm f/1.4 EX DG HSM— 11 ELEMENTS / 8 GROUPS, DESIGN f = 83.58 mm
JP 2011-186095 A↗2011Inventors: Noriyuki Ogasawara, Takehisa Koyama
Example 2OLYMPUS M.ZUIKO DIGITAL ED 75-300mm f/4.8-6.7— 18 ELEMENTS / 13 GROUPS, DESIGN f = 76.91-290.98 mm
JP 2012-058682 A↗2012Inventors: Noriyuki Ogasawara
Example 4SIGMA MACRO 105mm f/2.8 EX DG OS HSM— 16 elements / 11 groups, 105 mm marketed; 101.71 mm design
JP 2012-063403 A↗2012Inventors: Yukihiro Yamamoto
Numerical Example 2SIGMA APO MACRO 150mm f/2.8 EX DG OS HSM— 19 elements / 13 groups, f = 149.99 mm design / 150 mm nominal
JP 2013-003324 A↗2013Inventors: Yutaka Kamimura
Example 2PANASONIC LEICA DG SUMMILUX 25mm f/1.4 ASPH.— 9 ELEMENTS / 7 GROUPS, f ≈ 25.0 mm
JP 2013-104994 A↗2013Inventors: Kenta Fujita
Numerical Example 2SIGMA APO MACRO 180mm f/2.8 EX DG OS HSM— 19 elements / 14 groups, 180 mm f/2.8 marketed; 174.60 mm f/2.92 design
JP 2013-156459 A↗2013Inventors: Tomoki Kono
Numerical Example 4SIGMA 30mm f/2.8 (Sigma DP2 Merrill)— 8 ELEMENTS / 6 GROUPS, f ≈ 29.6 mm
JP 2013-161076 A↗2013Inventors: Yukihiro Yamamoto
Numerical Example 1OLYMPUS M.ZUIKO DIGITAL ED 75mm f/1.8— 10 ELEMENTS / 9 GROUPS, DESIGN f = 74.56 mm
JP 2014-048488 A↗2014Inventors: Ryo Shioda
Numerical Example 4SIGMA 35mm f/1.4 DG HSM | Art— 13 elements / 11 groups, f = 35.16 mm design
JP 2014-89365 A↗2014Inventors: Ryo Shioda
Numerical Example 1SIGMA 18-35mm f/1.8 DC HSM | Art— 17 ELEMENTS / 12 GROUPS, DESIGN f = 18.60–33.78 mm
JP 2014-126652 A↗2014Inventors: Noriyuki Ogasawara
Example 3SIGMA 50mm f/2.8 (Sigma DP3 Merrill)— 10 ELEMENTS / 8 GROUPS, f ≈ 48.7 mm
JP 2014-142520 A↗2014Inventors: Hiroki Uehara
Numerical Example 1SIGMA 30mm f/1.4 DC HSM | Art— 9 elements / 8 groups, f = 30.785 mm design
JP 2014-145954 A↗2014Inventors: Masakazu Hibino
Numerical Example 1SIGMA 60mm f/2.8 DN | Art— 8 elements / 6 groups, f = 60.00 mm patent design
JP 2015-055858 A↗2015Inventors: Tomoki Kono
Numerical Example 2SIGMA 24-105mm f/4 DG OS HSM Art— 19 ELEMENTS / 14 GROUPS, NATIVE DESIGN 24.86-101.70 mm
JP 2015-075501 A↗2015Inventors: Yukihiro Yamamoto
Numerical Example 1OLYMPUS M.ZUIKO DIGITAL 25mm f/1.8— 9 ELEMENTS / 7 GROUPS, DESIGN f = 24.53 mm
JP 2015-114366 A↗2015Inventors: Ryo Shioda
Numerical Example 1SIGMA 50mm f/1.4 DG HSM | Art— 13 elements / 8 groups, f = 49.58 mm design
JP 2016-139087 A↗2016Inventors: Tomoki Kono, Noriyuki Ogasawara
Example 2SIGMA 14mm f/4 (Sigma dp0 Quattro)— 11 ELEMENTS / 8 GROUPS, f ≈ 13.97 mm
JP 2016-184136 A↗2016Inventors: Yukihiro Yamamoto
Numerical Example 7OLYMPUS M.ZUIKO DIGITAL ED 8mm f/1.8 Fisheye PRO— 17 ELEMENTS / 15 GROUPS, DESIGN f = 7.90 mm
JP 2017-156719 A↗2017Inventors: Ryo Shioda
Numerical Example 1SIGMA 24-70mm f/2.8 DG OS HSM | Art— 19 ELEMENTS / 14 GROUPS, DESIGN f = 24.84–67.55 mm
JP 2017-167327 A↗2017Inventors: Masakazu Hibino
Numerical Example 1PANASONIC LEICA DG SUMMILUX 12mm f/1.4 ASPH.— 15 elements / 12 groups, 12 mm nominal; f = 11.9795 mm design
JP 2018-005099 A↗2018Inventors: Yuki Ueda
Numerical Example 4SIGMA 85mm f/1.4 DG HSM | Art— 14 ELEMENTS / 12 GROUPS, f ≈ 83.4 mm
JP 2018-189733 A↗2018Inventors: Ryo Shioda
Numerical Example 1SIGMA 14-24mm f/2.8 DG HSM | Art— 17 elements / 11 groups, 14.50-23.15 mm design
JP 2018-205527 A↗2018Inventors: Hiromichi Ochiai, Ryosuke Sato
Numerical Example 1SIGMA 16mm f/1.4 DC DN | Contemporary— 16 elements / 13 groups, f = 16.446 mm design; 16 mm marketed
JP 2019-023693 A↗2019Inventors: Masakazu Hibino
Numerical Example 1OLYMPUS M.ZUIKO DIGITAL ED 45mm f/1.2 PRO— 14 ELEMENTS / 10 GROUPS, DESIGN f = 44.10 mm
JP 2019-117419 A↗2019Inventors: Kenta Fujita
Numerical Example 1SIGMA 20mm f/1.4 DG HSM | Art— 15 elements / 11 groups, Patent f = 20.69 mm
JP 2019-144477 A↗2019Inventors: Yasumoto Oginome
Numerical Example 1SIGMA 105mm f/1.4 DG HSM | Art— 17 elements / 12 groups, f = 101.85 mm design
JP 2019-211703 A↗2019Inventors: Yukihiro Yamamoto
Numerical Example 1SIGMA 45mm f/2.8 DG DN | Contemporary— 8 elements / 7 groups, f = 43.93 mm design / 45 mm marketed
JP 2019-219472 A↗2019Inventors: Hokuto Usami, Kenta Fujita
Numerical Example 5SIGMA 28mm f/1.4 DG HSM | Art— 17 ELEMENTS / 12 GROUPS, DESIGN f = 28.72 mm
JP 2020-012952 A↗2020Inventors: Takeshi Yamanaka
Example 1SIGMA 40mm f/1.4 DG HSM | Art— 16 ELEMENTS / 12 GROUPS, f ≈ 41.2 mm
JP 2020-020948 A↗2020Inventors: Noriyuki Ogasawara
Numerical Example 1SIGMA 60-600mm f/4.5-6.3 DG OS HSM | Sports— 25 ELEMENTS / 19 GROUPS, DESIGN f = 62.03–577.73 mm
JP 2020-042221 A↗2020Inventors: Ryo Shioda
Numerical Example 1SIGMA 14-24mm f/2.8 DG DN | Art— 18 ELEMENTS / 13 GROUPS, DESIGN f = 14.50–23.15 mm
JP 2020-086133 A↗2020Inventors: Ryosuke Sato, Takehisa Koyama
Numerical Example 6PANASONIC LUMIX S PRO 70-200mm f/4 O.I.S.— 23 ELEMENTS / 17 GROUPS, DESIGN f = 72.50-193.95 mm
JP 2021-085935 A↗2021Inventors: Ryo Shioda
Numerical Example 1SIGMA 85mm f/1.4 DG DN | Art— 15 ELEMENTS / 11 GROUPS, f ≈ 82.96 mm (design)
JP 2021-128263 A↗2021Inventors: Hitoshi Murakami, Ryosuke Sato
Numerical Example 1SIGMA 65mm f/2 DG DN | Contemporary— 12 ELEMENTS / 9 GROUPS, DESIGN f = 63.10 mm
JP 2021-148808 A↗2021Inventors: Yuki Ueda
Numerical Example 1SIGMA 105mm f/2.8 DG DN MACRO | Art— 17 ELEMENTS / 12 GROUPS, DESIGN f = 103.48 mm
JP 2022-033487 A↗2022Inventors: Ryo Shioda
Numerical Example 1SIGMA 35mm f/1.4 DG DN | Art— 15 ELEMENTS / 11 GROUPS, f ≈ 33.72 mm (35 mm marketed)
JP 2022-061515 A↗2022Inventors: Hitoshi Murakami
Numerical Example 2SIGMA 90mm f/2.8 DG DN | Contemporary— 11 ELEMENTS / 10 GROUPS, DESIGN f = 87.30 mm
JP 2022-067328 A↗2022Inventors: Daichi Tanoue
Numerical Example 1SIGMA 24mm f/3.5 DG DN | Contemporary— 10 ELEMENTS / 8 GROUPS, DESIGN f = 24.00 mm
JP 2022-073433 A↗2022Inventors: Takeshi Asakura
Numerical Example 1SIGMA 24mm f/2 DG DN | Contemporary— 13 ELEMENTS / 11 GROUPS, DESIGN f = 24.00 mm
JP 2023-074094 A↗2023Inventors: Ryo Shioda
Example 1SIGMA 24mm f/1.4 DG DN | Art— 17 elements / 14 groups, f = 23.86 mm patent / 24 mm nominal
JP 2023-180574 A↗2023Inventors: Ryosuke Sato
Numerical Example 5SIGMA 60-600mm f/4.5-6.3 DG DN OS | Sports— 27 ELEMENTS / 19 GROUPS, DESIGN f = 62.00–580.00 mm
JP 2023-183894 A↗2023Inventors: Yukihiro Yamamoto
Numerical Example 1SIGMA 50mm f/1.4 DG DN | Art— 14 ELEMENTS / 11 GROUPS, f = 48.72 mm
JP 2024-035865 A↗2024Inventors: Kyosuke Murakami
Numerical Example 1SIGMA 23mm f/1.4 DC DN | Contemporary— 13 elements / 10 groups, f = 22.31 mm design; 23 mm marketed
JP 2024-104911 A↗2024Inventors: Ryo Shioda
Numerical Example 2SIGMA 10-18mm f/2.8 DC DN | Contemporary— 13 elements / 10 groups, 10.30-17.50 mm design EFL
JP 2025-043459 A↗2025Inventors: Masakazu Hibino
Numerical Example 1SIGMA 70-200mm f/2.8 DG DN OS | Sports— 20 ELEMENTS / 15 GROUPS, DESIGN f = 72.10–194.00 mm
JP 2025-099854 A↗2025Inventors: Yasumoto Oginome
Numerical Example 3SIGMA 15mm f/1.4 DG DN DIAGONAL FISHEYE | Art— 21 ELEMENTS / 15 GROUPS, DESIGN f = 15.50 mm
JP 2025-124346 A↗2025Inventors: Yuki Ueda
Numerical Example 1SIGMA 50mm f/1.2 DG DN | Art— 17 ELEMENTS / 12 GROUPS, DESIGN f = 48.27 mmNumerical Example 2SIGMA 85mm f/1.2 DG | Art— 17 ELEMENTS / 12 GROUPS, DESIGN f = 82.63 mm
JP 2025-162727 A↗2025Inventors: Daichi Tanoue
Numerical Example 1SIGMA 200mm f/2 DG OS | Sports— 19 ELEMENTS / 14 GROUPS, DESIGN f = 194.30 mm
JP 2025-182227 A↗2025Inventors: Takeshi Umeda
Numerical Example 1SIGMA 28-105mm f/2.8 DG DN Art— 18 ELEMENTS / 13 GROUPS, SOURCE 28.55–102.37 mm
JP 2025-186709 A↗2025Inventors: Kyosuke Murakami
Numerical Example 1SIGMA 12mm f/1.4 DC | Contemporary— 14 ELEMENTS / 12 GROUPS, f ≈ 12.3301 mm
JP H04-110811 A↗1992Inventors: Takehisa Koyama
Example 3SIGMA APO MACRO 180mm f/5.6 UC— 9 ELEMENTS / 6 GROUPS, DESIGN f = 174.86 mm
Sony Corporation(5)JP 2012-159613 A↗2012Also assigned to: Tamron Co., Ltd.
Inventors: Takahiko Sakai, Masaharu Hosoi
Example 1SONY E 30mm f/3.5 Macro— 30 mm f/3.5 APS-C E-mount, JP 2012-159613 A Example 1
JP 2012-242690 A↗2012Also assigned to: Tamron Co., Ltd.
Inventors: Toshihide Hayashi, Naoki Miyagawa
Example 2SONY E 50mm f/1.8 OSS— 9 ELEMENTS / 8 GROUPS, 50mm MARKETED / 51.30mm DESIGN
JP 2015-041012 A↗2015Also assigned to: Tamron Co., Ltd.
Inventors: Takahiko Sakai
Example 1SONY SONNAR T* FE 35mm f/2.8 ZA— 7 ELEMENTS / 5 GROUPS, f ≈ 36.1 mm
JP 2015-166834 A↗2015Inventors: Masaharu Hosoi
Numerical Example 1SONY VARIO-TESSAR T* FE 16-35mm f/4 ZA OSS— 12 ELEMENTS / 10 GROUPS, PATENT f = 16.48 / 24.07 / 33.95 mm
JP WO2019/188070 A1↗2019Inventors: Koji Toyoda, Maya Kiyotoshi, Keita Kaifu, Kentaro Tawada
Numerical Example 3SONY ZEISS VARIO-SONNAR T* 9-72mm f/2.8-4.5 (Sony Cyber-shot RX100 VI / RX100 VII)— 15 ELEMENTS / 12 GROUPS, f ≈ 9.0–66.3 mm (DESIGN)
Sony Group Corporation(6)JP 2022-030896 A↗2022Also assigned to: Tamron Co., Ltd.
Inventors: Junichi Yamazoe, Ryohei Tazaki
Example 1SONY FE 24mm f/2.8 G— 8 ELEMENTS / 7 GROUPS, Patent f = 24.710 mm
JP 2022-140076 A↗2022Inventors: Yosuke Utagawa, Masaki Maruyama
Example 1SONY FE 50mm f/1.2 GM— 14 ELEMENTS / 10 GROUPS, MARKETED 50 mm f/1.2
JP 2022-155067 A↗2022Inventors: Naoki Miyagawa, Yoshio Hosono
Example 1SONY FE 8-14mm f/3.5 Fisheye G— 16 ELEMENTS / 13 GROUPS, DESIGN 7.55-12.59 mm
JP 2023-039817 A↗2023Inventors: Naoki Miyagawa, Shugo Takahashi
Example 2SONY FE 70-200mm f/2.8 GM OSS II— 17 ELEMENTS / 14 GROUPS, f = 72.1–194.0 mm
JP 2023-44106 A↗2023Inventors: Kohei Uemura, Tetsuichiro Okumura, Naoki Miyagawa
Example 5SONY FE PZ 16-35mm f/4 G— 13 ELEMENTS / 12 GROUPS, 16.48-33.96 mm PATENT ZOOM STATES
JP 2025-063175 A↗2025Inventors: Riki Maruyama
Example 2SONY FE 400mm f/2.8 GM OSS— 22 ELEMENTS / 16 GROUPS, DESIGN f ≈ 388.15 mmExample 4SONY FE 600mm f/4 GM OSS— 23 ELEMENTS / 17 GROUPS, DESIGN f = 581.97 mm
Tamron Co., Ltd.(22)JP 2003-329924 A↗2003Inventors: Yuichi Muramatsu
Example 2TAMRON SP AF 180mm f/3.5 Di LD [IF] MACRO 1:1 (B01)— 14 ELEMENTS / 11 GROUPS, PATENT f = 176.9587 mm; DATA SCALED TO 180 mm
JP 2003-344768 A↗2003Inventors: Akio Arakawa
Sole exampleTAMRON SP AF 200-500mm f/5-6.3 Di LD [IF]— 13 ELEMENTS / 10 GROUPS, 200-500mm f/5-6.3
JP 2004-101739 A↗2004Inventors: Yasuharu Yamada
Sole exampleMINOLTA AF 28-75mm f/2.8 (D)— 28-75mm f/2.8, 16 elements / 14 groups
JP 2007-133138 A↗2007Inventors: Akio Arakawa, Yuichi Muramatsu
Example 2TAMRON SP AF 17-50mm f/2.8 XR Di II LD Aspherical [IF] (A16)— 16 ELEMENTS / 13 GROUPS, DESIGN f = 17.40–48.50 mm
JP 2009-168934 A↗2009Inventors: Hisayuki Yamanaka, Dayong Li
Embodiment 3SONY 70-300mm f/4.5-5.6 G SSM— 16 ELEMENTS / 11 GROUPS, DESIGN f = 71.77-291.96 mm
JP 2010-044103 A↗2010Inventors: Akio Arakawa, Yuichi Muramatsu
Sole exampleTAMRON AF 18-270mm f/3.5-6.3 Di II VC LD ASPHERICAL [IF] MACRO (B003)— 18 ELEMENTS / 13 GROUPS, DESIGN f = 18.40–264.21 mm
JP 2012-159613 A↗2012Also assigned to: Sony Corporation
Inventors: Takahiko Sakai, Masaharu Hosoi
Example 1SONY E 30mm f/3.5 Macro— 30 mm f/3.5 APS-C E-mount, JP 2012-159613 A Example 1
JP 2012-242690 A↗2012Also assigned to: Sony Corporation
Inventors: Toshihide Hayashi, Naoki Miyagawa
Example 2SONY E 50mm f/1.8 OSS— 9 ELEMENTS / 8 GROUPS, 50mm MARKETED / 51.30mm DESIGN
JP 2013-254160 A↗2013Inventors: Nobuyuki Adachi
Example 7TAMRON 28-300mm f/3.5-6.3 Di VC PZD— 19 ELEMENTS / 15 GROUPS, 28-300mm marketed; 28.776-291.262mm patent states
JP 2014-089352 A↗2014Inventors: Takahiko Sakai
Example 1SONY E 35mm f/1.8 OSS— 8 elements / 6 groups, f = 34.914 mm
JP 2014-209144 A↗2014Also assigned to: Nikon Corporation
Inventors: Taku Matsuo, Takeshi Suzuki, Haruo Sato, Hisayuki Yamanaka
Example 2NIKON AF-S NIKKOR 200-500mm f/5.6 E ED VR— 19 ELEMENTS / 12 GROUPS, f = 205–487 mm
JP 2015-041012 A↗2015Also assigned to: Sony Corporation
Inventors: Takahiko Sakai
Example 1SONY SONNAR T* FE 35mm f/2.8 ZA— 7 ELEMENTS / 5 GROUPS, f ≈ 36.1 mm
JP 2015-096915 A↗2015Inventors: Hirofumi Tabata, Yasuhiko Obikane
Example 2ZEISS BATIS 85mm f/1.8— 11 ELEMENTS / 8 GROUPS, 85 mm marketed / 82.87 mm patent
JP 2016-188967 A↗2016Inventors: Keisuke Omori
Example 1ZEISS BATIS 18mm f/2.8— 11 ELEMENTS / 10 GROUPS, 18.54 mm DESIGN / 18 mm MARKETED
JP 2017-116646 A↗2017Inventors: Dayong Li
Example 1TAMRON 18-400mm f/3.5-6.3 Di II VC HLD— 16 ELEMENTS / 11 GROUPS, 18-400mm MARKETING / 18.5105-389.00mm PATENT
JP 2019-191502 A↗2019Inventors: Naoyuki Sato
Example 1ZEISS BATIS 40mm f/2 CF— 9 ELEMENTS / 8 GROUPS, DESIGN f = 41.19 mm
JP 2021-43375 A↗2021Inventors: Wataru Kusaka
Example 1TAMRON 70-180mm f/2.8 Di III VXD— 19 ELEMENTS / 14 GROUPS, 70-180mm f/2.8 MARKETED
JP 2022-030896 A↗2022Also assigned to: Sony Group Corporation
Inventors: Junichi Yamazoe, Ryohei Tazaki
Example 1SONY FE 24mm f/2.8 G— 8 ELEMENTS / 7 GROUPS, Patent f = 24.710 mm
JP 2022-131391 A↗2022Inventors: Shingo Abe
Numerical Example 5TAMRON 20-40mm f/2.8 Di III VXD (A062)— 12 ELEMENTS / 11 GROUPS, DESIGN f = 20.60-38.80 mm
JP 2023-004721 A↗2023Inventors: Hisayuki Yamanaka
Numerical Example 1TAMRON 35-150mm f/2-2.8 Di III VXD (A058)— 21 ELEMENTS / 15 GROUPS, DESIGN f = 36.03–145.53 mm
JP 2025-033505 A↗2025Inventors: Hisayuki Yamanaka
Numerical Example 1TAMRON 70-180mm f/2.8 Di III VC VXD G2— 20 ELEMENTS / 15 GROUPS, DESIGN f = 72.07–174.65 mm
JP 2026-57675 A↗2026Inventors: Tomohiro Kobayashi
Numerical Example 1TAMRON 90mm f/2.8 Di III MACRO VXD— 15 ELEMENTS / 12 GROUPS, DESIGN f ≈ 87.306 mm
Tamron Optical Foshan Co., Ltd.(1)JP 2012-181525 A↗2012Inventors: Nobuyuki Adachi, Hisayuki Yamanaka
Embodiment 1TAMRON 18-200mm f/3.5-6.3 Di III VC (B011)— 17 ELEMENTS / 13 GROUPS, 18.50-194.00 mm PATENT EFL
Tokina Optical Co., Ltd.(1)JP 1978-129629 A↗1978Also assigned to: Tomioka Optical Co., Ltd.
Inventors: Toshio Funejima, Hamao Inagaki
Example 2YASHICA ML 300mm f/5.6 C— 6 ELEMENTS / 3 GROUPS, 300mm f/5.6
Tomioka Optical Co., Ltd.(1)JP 1978-129629 A↗1978Also assigned to: Tokina Optical Co., Ltd.
Inventors: Toshio Funejima, Hamao Inagaki
Example 2YASHICA ML 300mm f/5.6 C— 6 ELEMENTS / 3 GROUPS, 300mm f/5.6
Yashica Co., Ltd.(2)JP 1969-024068 B↗1969Inventors: Iwatatsu Fujioka
Sole exampleYASHICA YASHINON-DX 21mm f/3.3— 8 ELEMENTS / 5 GROUPS, 21mm
JP 1975-110330 A↗1975Inventors: Yoshisato Fujioka
Example 1YASHICA ML 24mm f/2.8— 9 ELEMENTS / 8 GROUPS, 24mm f/2.8
No named assignee or applicant(1)JP 1955-009472 B↗1955Inventors: Tomokazu Kazamaki, Fumio Kondo
Sole exampleKONICA HEXANON 135mm f/3.5— 4 ELEMENTS / 4 GROUPS, f = 134.995mm DESIGN
South KoreaKR · 7 patentsSamyang Optics Co., Ltd.(7)KR 10-2017-0073883 A↗2017Inventors: Jong Young Park, Jung Du Lee
Example 1SAMYANG 100mm f/2.8 ED UMC MACRO— 15 ELEMENTS / 12 GROUPS, DESIGN f = 98.04 mm
KR 10-1825708 B1↗2018Inventors: Jae Myung Ryu, Hae Jin Lee, Jung Du Lee
Numerical Example 1SAMYANG AF 50mm f/1.4 FE— 9 ELEMENTS / 8 GROUPS, 50mm f/1.4 MARKETED; 51.0386mm f/1.44 DESIGN
KR 10-1918210 B1↗2018Inventors: Jae Myung Yu, Hae Jin Lee, Jung Du Lee
Numerical Example 3SAMYANG AF 14mm f/2.8 EF— 15 ELEMENTS / 10 GROUPS, DESIGN f = 14.19 mm
KR 10-1933088 B1↗2018Inventors: Jae Myung Yu, Hae Jin Lee, Jung Du Lee
Numerical Example 1SAMYANG AF 14mm f/2.8 FE— 14 ELEMENTS / 10 GROUPS, MARKETED 14mm f/2.8
KR 10-2077265 B1↗2020Inventors: Jae Myung Yu, Hae Jin Lee, Jung Du Lee, Moon-Kyung Kim
Example 3SAMYANG XP 35mm f/1.2— 12 ELEMENTS / 10 GROUPS, 35mm f/1.2 (MARKETED)
KR 10-2127451 B1↗2020Inventors: Moon-Kyung Kim
Example 4SAMYANG AF 35mm f/2.8 FE— 7 ELEMENTS / 6 GROUPS, f ≈ 35.183 mm (MODELED)
KR 101802036 B1↗2017Inventors: Jong Young Park, Hyun Sik Yoon
Example 1SAMYANG 135mm f/2 ED UMC— 11 ELEMENTS / 7 GROUPS, DESIGN f = 130 mm
SwitzerlandCH · 4 patentsCarl-Zeiss-Stiftung(1)CH 314381↗1956Inventors: Günther Lange, Robert Richter
Example 1CARL ZEISS TESSAR 50mm f/3.5— 4 ELEMENTS / 3 GROUPS, f ≈ 50.0 mm
Jos. Schneider & Co., Optische Werke(2)CH 346706↗1960Inventors: Günter Klemt
Table ASCHNEIDER-KREUZNACH XENON 50mm f/1.9— 6 ELEMENTS / 4 GROUPS, f ≈ 50.003 mm
CH 352844↗1961Inventors: Günter Klemt
Numerical Example ASCHNEIDER-KREUZNACH RETINA-XENON C 50mm f/2 (Kodak Retina IIIc)— 6 ELEMENTS / 4 GROUPS, f = 50.003 mm
No named assignee or applicant(1)CH 479 879↗1969Inventors: Ludwig Bertele, Jürgen Bertele
Sole exampleSCHACHT S-TRAVENAR 135mm f/2.8— 4 ELEMENTS / 4 GROUPS, 135 mm f/2.8 marketed
United KingdomGB · 10 patentsAgfa Camera-Werk AG(1)GB 775,944↗1957Sole exampleAGFA COLOR-MAGNOLAR II 100mm f/4.5— 5 ELEMENTS / 3 GROUPS, f = 100.0 mm (scaled)
Carl-Zeiss-Stiftung(1)GB 975,446↗1964Sole exampleCARL ZEISS MIROTAR 500mm f/4.5— 5 PHYSICAL ELEMENTS / 5 GROUPS (PRIMARY MIRROR INCLUDED), PATENT-SCALE EFL ≈ 502.96 mm
Nippon Kogaku K.K.(1)GB 1,050,055↗1966Example 1NIKON ULTRA-MICRO-NIKKOR 29.5mm f/1.2— 9 elements / 6 groups, f = 29.5 mm nominal; e-line EFL ≈ 29.11 mm
Ponder & Best, Inc.(1)GB 1,408,910↗1975Inventors: Ellis I. Betensky
Table IIVIVITAR SERIES 1 135mm f/2.3 AUTO TELEPHOTO— 6 ELEMENTS / 6 GROUPS, f = 135.21 mm
VEB Carl Zeiss Jena(3)GB 2 066 504 A↗1981Inventors: Eberhard Dietzsch, Heinz-Dietrich Siegert, Erich Greiner
Example 4CARL ZEISS JENA PRAKTICAR 50mm f/1.4— 7 ELEMENTS / 6 GROUPS, f = 49.995 mm (design)
GB 850,117↗1960Inventors: Eduard Hubert, Harry Zöllner
Sole exampleCARL ZEISS JENA PANCOLAR 50mm f/2— 6 ELEMENTS / 4 GROUPS, f ≈ 50.6 mm
GB 978,797↗1964Inventors: Wolf Dannberg, Eberhard Dietzsch
Example 1CARL ZEISS JENA FLEKTOGON 20mm f/4— 10 ELEMENTS / 6 GROUPS, f = 20.002 mm
No named assignee or applicant(3)GB 135,853 A↗1919Inventors: Paul Rudolph
Example 2MEYER OPTIK GÖRLITZ DOUBLE-PLASMAT 135mm f/4.5 (patent model)— 6 ELEMENTS / 4 GROUPS, PATENT REPRESENTATION 135mm f/4.5
GB 673,358 A↗1952Inventors: Pierre Angénieux
Example IP. ANGÉNIEUX RETROFOCUS TYPE R1 35mm f/2.5— 6 ELEMENTS / 5 GROUPS, 35mm MARKETING / 35.372mm DESIGN
GB 720,808↗1954Inventors: Pierre Angénieux
Sole exampleP. ANGÉNIEUX RETROFOCUS TYPE R11 28mm f/3.5— 6 ELEMENTS / 6 GROUPS, 28.000 mm DESIGN EFL
United StatesUS · 506 patentsACM Projektentwicklung GmbH(1)US 8,508,864 B2↗2013Inventors: Iain A. Neil
Example 2LEICA SUMMILUX-C 40mm T1.4— 15 ELEMENTS / 11 AIR-SPACED GROUPS, 2 PATENT MACRO-GROUPS (G1 + G2)Embodiment 3LEICA SUMMILUX-C 100mm T1.4— 13 ELEMENTS / 10 AIR-SPACED GROUPS, 3 FUNCTIONAL GROUPS (G1a / G1b / G2)
Agfa Camera-Werk AG(2)US 2,745,315↗1956Inventors: Theodor Brendel
Example 1AGFA SOLAGON 50mm f/2— 6 ELEMENTS / 4 GROUPS, f ≈ 50.08 mm
US 2,819,651↗1958Inventors: Carl Baur, Christian Otzen
Sole exampleAGFA COLOR-TELINEAR 90mm f/4— 5 elements / 3 groups, f ≈ 90.0 mm
Anhui Changgeng Optics Technology Co., Ltd.(1)US 2018/0149842 A1↗2018Inventors: Xiaohua Zhang
Example 1LAOWA 15mm f/2 Zero-D— Patent Example 1, 12 elements / 9 groups
Apple Inc.(2)US 2016/0341934 A1↗2016Inventors: Romeo I. Mercado
Example 11APPLE WIDE 4.10mm f/1.8 (Apple iPhone 7)— 6 ELEMENTS / 6 GROUPS, PATENT f = 4.10 mm
US 2018/0364457 A1↗2018Inventors: Yuhong Yao, Yoshikazu Shinohara, Lin-Yao Liao
Example 7APPLE WIDE 4.36mm f/1.6 (Apple iPhone 12)— 7 ELEMENTS / 7 GROUPS, PATENT f = 4.361 mm; MODEL EFL = 4.3566 mm
Asahi Kogaku Kogyo Co., Ltd.(18)US 3,459,469↗1969Inventors: Yasuo Takahashi
Sole examplePENTAX SUPER-TAKUMAR 135mm f/2.5— 5 ELEMENTS / 4 GROUPS, 135mm f/2.5 MARKETED
US 3,490,825↗1970Inventors: Yasuo Takahashi
Sole examplePENTAX ULTRA-ACHROMATIC-TAKUMAR 85mm f/4.5— 5 ELEMENTS / 5 GROUPS, f = 85mm (PATENT f = 100mm × 0.85)
US 3,506,336↗1970Inventors: Yasuo Takahashi
Sole examplePENTAX SUPER-TAKUMAR 35mm f/2— 8 ELEMENTS / 7 GROUPS, f = 35.000 mm
US 3,506,339↗1970Inventors: Tomokazu Kazamaki
Sole examplePENTAX SUPER-TAKUMAR 28mm f/3.5— 7 ELEMENTS / 7 GROUPS, f = 28.000 mm
US 4,223,982↗1980Inventors: Takahiro Sugiyama
Example 2PENTAX 110 24mm f/2.8— 6 ELEMENTS / 5 GROUPS, f ≈ 24.0 mm
US 4,289,385↗1981Inventors: Masakazu Yamagata
Example 1PENTAX 110 50mm f/2.8— 5 ELEMENTS / 5 GROUPS, f ≈ 50.0 mm
US 4,447,137↗1984Inventors: Yasunori Arai
Example 2PENTAX SMC A* 135mm f/1.8— 7 elements / 6 groups, f = 134.99 mm
US 4,487,485↗1984Inventors: Masaharu Hisada
Example 1PENTAX SMC A 645 45mm f/2.8— 45mm f/2.8, 9 elements / 8 groups
US 4,666,260↗1987Inventors: Takayuki Ito
Example 1PENTAX SMC A* 200mm f/4 MACRO ED— 10 elements / 9 groups, f = 199.98 mm design
US 4,812,022↗1989Inventors: Shigetada Sato
Example 3PENTAX SMC A ZOOM 35-70mm f/4— 7 ELEMENTS / 7 GROUPS, 35-70mm f/4 (MARKETED)
US 4,812,026↗1989Inventors: Mitsunori Iima
Example 2PENTAX SMC FA* 300mm f/4.5 ED [IF]— 9 ELEMENTS / 7 GROUPS, DESIGN f = 300.06 mm
US 5,264,965 A↗1993Inventors: Jun Hirakawa
Embodiment 4PENTAX SMC FA 28-105mm f/4-5.6 POWER ZOOM— 13 ELEMENTS / 11 GROUPS, DESIGN f = 29.02–101.60 mm
US 5,267,086↗1993Inventors: Hiroyuki Hirano
Example 1PENTAX F 85mm f/2.8 Soft— 5 ELEMENTS / 4 GROUPS, f ≈ 85.0 mm
US 5,822,132↗1998Inventors: Jun Hirakawa
Embodiment 1PENTAX SMC FA 28mm f/2.8 Soft— 5 elements / 5 groups, f = 28 mm
US 6,002,533↗1999Inventors: Shuji Yoneyama
Embodiment 1PENTAX SMC 67 MACRO 100mm f/4— 6 elements / 4 groups, f = 99.97 mm
US 6,154,324↗2000Inventors: Masayuki Murata, Takayuki Ito
Embodiment 1PENTAX SMC FA 645 120mm f/4 Macro— 9 elements / 7 groups, 120 mm marketed; 123.09 mm patent EFL
US 6,246,529 B1↗2001Inventors: Takayuki Sensui
Example 5PENTAX SMC FA 20-35mm f/4 AL— 10 ELEMENTS / 8 GROUPS, DESIGN f = 20.60-34.01 mm
US 2001/0007512 A1↗2001Inventors: Takayuki Sensui
Embodiment 4PENTAX HD D FA645 35mm f/3.5 AL [IF]— 10 PHYSICAL ELEMENTS / 8 PATENT GROUPS, PATENT DESIGN f = 36.000 mm
Canon Camera Co., Inc.(7)US 2,645,973↗1953Inventors: Hiroshi Ito
Illustrative Embodiment 1CANON SERENAR 85mm f/1.5— 7 ELEMENTS / 4 GROUPS, f ≈ 85.0 mm
US 2,645,974↗1953Inventors: Hiroshi Ito
Sole exampleCANON SERENAR 28mm f/3.5— 6 ELEMENTS / 4 GROUPS, f ≈ 28.0 mm
US 2,645,975↗1953Inventors: Hiroshi Ito
Sole exampleCANON SERENAR 35mm f/3.2— 6 ELEMENTS / 4 GROUPS, f ≈ 35.0 mm
US 2,681,594↗1954Inventors: Hiroshi Ito
Sole exampleCANON SERENAR 50mm f/1.8— 6 ELEMENTS / 4 GROUPS, f ≈ 50.0 mm
US 2,836,102↗1958Inventors: Hiroshi Ito
Example 2CANON 50mm f/1.2— 7 ELEMENTS / 5 GROUPS, 50 mm (DESIGN 50.513 mm)
US 2,838,978↗1958Inventors: Jiro Mukai
Sole exampleCANON 50mm f/2.8— 4 ELEMENTS / 3 GROUPS, EFL 50.0499 mm
US 3,377,119 A↗1968Inventors: Eiichi Takano
Sole exampleCANON FL 85-300mm f/5— 15 ELEMENTS / 9 GROUPS, DESIGN f = 87.74–292.45 mm
Canon Inc.(68)US 3,748,021↗1973Inventors: Akira Tajima, Kikuo Momiyama
Embodiment 2CANON FD 24mm f/2.8 S.S.C.— 24mm f/2.8, 9 elements / 8 groups
US 3,748,022↗1973Inventors: Akira Tajima
Sole exampleCANON FD 35mm f/2 S.S.C. (I)— 35mm f/2, 9 elements / 8 groups
US 3,868,174 A↗1975Inventors: Hideo Yokota
Example 1CANON FL 300mm f/2.8 S.S.C. FLUORITE— 5 ELEMENTS / 4 GROUPS (PATENT; CANON LISTS 6/5), DESIGN f = 100 (SCALED ×3)
US 4,046,459↗1977Inventors: Naoto Kawamura
Example 2CANON FD 28mm f/2.8 S.C.— 7 elements / 7 groups, 28 mm
US 4,110,006↗1978Inventors: Keiji Ikemori
Example 4CANON NEW FD 150-600mm f/5.6 L— Telephoto zoom, 150–600 mm f/5.6, 19 elements / 15 groups
US 4,251,133↗1981Inventors: Sadahiko Tsuji
Numerical Example 3CANON FD 300mm f/4 S.S.C.— 6 elements / 6 groups, f ≈ 299.5 mm
US 4,364,643↗1982Inventors: Kikuo Momiyama
Embodiment 3CANON NEW FD 50mm f/1.2— 7 elements / 6 groups, 46° field of view
US 4,364,644↗1982Inventors: Keiji Ikemori
Example 1CANON FD 50mm f/1.2 L— 8 ELEMENTS / 6 GROUPS, f ≈ 50.0 mm
US 4,432,615 A↗1984Inventors: Keiji Ikemori
Numerical Example 2CANON NEW FD 35-105mm f/3.5— 15 ELEMENTS / 13 GROUPS, DESIGN f = 36.2-102 mm
US 4,717,245↗1988Inventors: Sadatoshi Takahashi
Example 2CANON EF 50mm f/1.0 L USM— 11 ELEMENTS / 9 GROUPS, f ≈ 50.0 mm
US 4,826,301↗1989Inventors: Keiji Ikemori
Numerical Example 4CANON EF 135mm f/2.8 Soft Focus— 7 ELEMENTS / 6 GROUPS, 135.043 mm DESIGN EFL
US 5,000,550↗1991Inventors: Sadatoshi Takahashi, Koutaro Yano, Hiroshi Endo
Numerical Example 1CANON EF 20-35mm f/2.8 L— 15 elements / 12 groups, 20.6-34.0 mm design zoom
US 5,899,585↗1999Inventors: Hideki Ogawa
Numerical Example 1CANON EF 28-80mm f/3.5-5.6 II— 10 ELEMENTS / 10 GROUPS, COMPUTED EFL 28.9689-76.9612 mm
US 6,061,180↗2000Inventors: Shingo Hayakawa
Numerical Example 1CANON EF 28-135mm f/3.5-5.6 IS USM— 16 elements / 12 groups, 28-135mm f/3.5-5.6 marketed; 28.891-131.182mm patent design
US 6,115,188 A↗2000Inventors: Akihiro Nishio, Hideki Ogawa, Makoto Misaka
Numerical Example 1CANON EF 300mm f/2.8 L IS USM— 15 ACTIVE ELEMENTS / 11 GROUPS, MODELED EFL ≈ 293.600 mmNumerical Example 22CANON EF 600mm f/4 L IS USM— 15 powered elements / 11 groups + filter, Patent f = 585.20 mm; computed EFL ≈ 585.328 mmNumerical Example 24CANON EF 500mm f/4 L IS USM— 15 POWERED ELEMENTS / 11 GROUPS + FILTER, PATENT f = 490.56 mm; ARRAY EFL ≈ 491.36 mmNumerical Example 25CANON EF 400mm f/2.8 L IS USM— 400mm f/2.8 (marketed), Patent f = 392.15 mm, F/2.9
US 7,158,320 B2↗2007Inventors: Akihiro Nishio
Numerical Embodiment 3CANON EF 100-300mm f/4.5-5.6 USM— 13 ELEMENTS / 10 GROUPS, 100-300mm MARKETED
US 7,864,451 B2↗2011Inventors: Yoshiyuki Taki
Numerical Example 1CANON EF 100mm f/2.8 L Macro IS USM— 15 elements / 12 groups, f = 99.996 mm design
US 8,736,971 B2↗2014Inventors: Takahiro Hatada
Numerical Example 3CANON EF 24-70mm f/2.8 L II USM— 18 elements / 13 groups, 24-70 mm f/2.8 marketed; 24.70-67.88 mm F/2.91 patent design
US 8,854,747 B2↗2014Inventors: Shunji Iwamoto
Example 1CANON EF-M 22mm f/2 STM— 7 elements / 6 groups, f = 21.79 mm design / 22 mm marketed
US 8,970,966 B2↗2015Inventors: Satoshi Maetaki
Numerical Example 2CANON EF 40mm f/2.8 STM— 6 ELEMENTS / 4 GROUPS, f ≈ 39.0 mm
US 10,571,651 B2↗2020Inventors: Hideki Sakai
Numerical Data 1CANON TS-E 50mm f/2.8 L MACRO— 12 elements / 9 groups, f = 51.40 mm design
US 2002/0015231 A1↗2002Inventors: Hideki Ogawa
Numerical Example 1CANON EF 400mm f/4 DO IS USM— US 2002/0015231 A1 — Example 1, 15 powered elements / 11 active groups + rear plate
US 2004/0223070 A1↗2004Inventors: Takashi Shirasuna
Numerical Example 4CANON EF 28-105mm f/4-5.6— 10 ELEMENTS / 9 GROUPS, PATENT 28.91-101.32mm
US 2005/0286139 A1↗2005Inventors: Takeshi Nishimura
Numerical Embodiment 5CANON EF-S 10-22mm f/3.5-4.5 USM— 13 elements / 10 groups, 10-22mm f/3.5-4.5
US 2006/0023317 A1↗2006Inventors: Makoto Fujimoto
Numerical Embodiment 1CANON EF-S 17-85mm f/4-5.6 IS USM— 17 ELEMENTS / 12 GROUPS, 17-85mm MARKETED / 17.55-82.48mm DESIGN
US 2007/0058265 A1↗2007Inventors: Takeshi Nishimura
Numerical Example 2CANON EF-S 18-55mm f/3.5-5.6 IS— 11 elements / 9 groups, Design f = 18.693-53.300 mm
US 2008/0112063 A1↗2008Inventors: Takahiro Hatada
Numerical Embodiment 2CANON EF-S 55-250mm f/4-5.6 IS— 12 ELEMENTS / 10 GROUPS, PATENT EFL 56.9-241.3 mm
US 2009/0296231 A1↗2009Inventors: Takashi Shirasuna
Numerical Embodiment 2CANON EF 70-200mm f/2.8 L IS II USM— 23 elements / 19 groups, Patent f = 72.14-193.97 mm
US 2010/0033848 A1↗2010Inventors: Takahiro Hatada
Exemplary Embodiment 3CANON EF 24mm f/1.4 L II USM— 13 ELEMENTS / 10 GROUPS, f = 24.539 mm (DESIGN)
US 2010/0208366 A1↗2010Inventors: Suguru Inoue
Numerical Example 1CANON TS-E 24mm f/3.5 L II— 16 ELEMENTS / 10 GROUPS (PATENT EXAMPLE), 24mm MARKETING / 24.247mm TRACED EFL
US 2011/0090576 A1↗2011Inventors: Shigenobu Sugita
Numerical Embodiment 2CANON EF 400mm f/2.8 L IS II USM— 15 ACTIVE ELEMENTS / 11 GROUPS (PLUS REAR FILTER PLATE G), PATENT f = 392.15 mm; COMPUTED EFL 392.2607 mmNumerical Embodiment 3CANON EF 600mm f/4 L IS II USM— 15 ACTIVE ELEMENTS / 11 GROUPS (PLUS REAR FILTER PLATE G), f = 584.82 mm (MODELED)
US 2012/0013996 A1↗2012Inventors: Tetsuichiro Okumura
Embodiment 1CANON EF 8-15mm f/4 L Fisheye USM— 14 elements / 11 groups, 8-15 mm marketed; 8.05-15.14 mm design
US 2013/0088622 A1↗2013Inventors: Shigenobu Sugita
Exemplary Embodiment 4CANON EF-S 18-135mm f/3.5-5.6 IS STM— MARKETED 18–135mm f/3.5–5.6, PATENT 18.60–130.48mm f/3.59–5.97
US 2013/0176385 A1↗2013Inventors: Hiroshi Saruwatari
Numerical Example 4CANON 15.1-60.4mm f/2.8-5.8 (Canon PowerShot G1 X)— 11 elements / 10 groups, Patent f = 15.57-58.93 mm
US 2013/0308041 A1↗2013Inventors: Takahiro Hatada
Numerical Example 1CANON EF 200-400mm f/4 L IS USM EXTENDER 1.4×— 24 ELEMENTS / 19 GROUPS (PATENT ACTIVE; REAR FILTER EXCLUDED), 200–400mm f/4 MARKETED
US 2013/0335830 A1↗2013Inventors: Yoshihisa Tashiro, Yasuaki Hagiwara
Numerical Embodiment 1CANON EF-M 18-55mm f/3.5-5.6 IS STM— 13 ELEMENTS / 11 GROUPS, 18.58-53.36 mm DESIGN
US 2014/0098253 A1↗2014Inventors: Satoshi Maetaki
Numerical Example 3CANON EF-M 11-22mm f/4-5.6 IS STM— 12 ELEMENTS / 9 GROUPS, 11-22mm f/4-5.6 MARKETED
US 2014/0211029 A1↗2014Inventors: Tetsuichiro Okumura
Numerical Embodiment 3CANON EF-S 55-250mm f/4-5.6 IS STM— 15 elements / 12 groups, 55-250mm f/4-5.6 marketed; 56.80-241.32mm patent design
US 2015/0098138 A1↗2015Inventors: Takashi Shirasuna
Example 2CANON EF 35mm f/1.4 L II USM— 14 ELEMENTS / 11 GROUPS, 35.4218 mm DESIGN EFL
US 2015/0146044 A1↗2015Inventors: Shigenobu Sugita
Example 2CANON EF 100-400mm f/4.5-5.6 L IS II USM— 21 ELEMENTS / 16 GROUPS, PATENT ZOOM POINTS 102.79-389.03 mm
US 2015/0146085 A1↗2015Inventors: Takahiro Hatada
Numerical Example 1CANON EF 11-24mm f/4 L USM— 16 elements / 11 groups, 11-24 mm f/4 marketed; 11.33-23.28 mm F/4.12 patent design
US 2015/0205081 A1↗2015Inventors: Akira Mizuma
Example 1CANON EF 35mm f/2 IS USM— 10 ELEMENTS / 8 GROUPS, 35mm f/2 (production)
US 2015/0219882 A1↗2015Inventors: Shuichi Mogi
Numerical Example 2CANON 12.5-62.5mm f/2-3.9 (Canon PowerShot G1 X Mark II)— 14 elements / 11 groups, Patent table f = 12.84-60.72 mm
US 2016/0062096 A1↗2016Inventors: Takahiro Hatada
Numerical Example 1CANON 8.8-36.8mm f/1.8-2.8 (Canon PowerShot G7 X)— Patent f=9.06-35.69 mm, Marketed 8.8-36.8 mm
US 2016/0313535 A1↗2016Inventors: Makoto Nakahara
Numerical Example 1CANON EF-M 28mm f/3.5 Macro IS STM— Canon EF-M / APS-C, Patent f = 27.74 mm; recomputed f = 27.76 mm
US 2017/0003486 A1↗2017Inventors: Suguru Inoue
Example 5CANON EF 70-300mm f/4-5.6 IS II USM— 17 ELEMENTS / 12 GROUPS, 70-300mm f/4-5.6 (marketed)
US 2019/0041605 A1↗2019Inventors: Shinichiro Saito, Makoto Nakahara
Example 2CANON EF 400mm f/2.8 L IS III USM— 16 active elements / 12 groups (plus rear filter plate G), Patent f = 392.00 mm; traced EFL = 391.938 mmExample 4CANON EF 600mm f/4 L IS III USM— 17 ELEMENTS / 13 GROUPS PRODUCTION; 16 / 12 ACTIVE MODEL, 600mm f/4 MARKETED
US 2019/0113711 A1↗2019Inventors: Shinya Okuoka
Example 1CANON RF 35mm f/1.8 MACRO IS STM— 11 ELEMENTS / 9 GROUPS, 35 mm f/1.8 MARKETED
US 2019/0265441 A1↗2019Inventors: Masato Katayose
Example 2CANON RF 50mm f/1.2 L USM— 15 ELEMENTS / 9 GROUPS, f ≈ 51.1 mm (marketed 50 mm)
US 2019/0278068 A1↗2019Inventors: Takahiro Hatada
Numerical Example 2CANON RF 24-105mm f/4 L IS USM— 18 ELEMENTS / 14 GROUPS, f = 24.72 – 101.84 mmExample 5CANON RF 24-70mm f/2.8 L IS USM— 21 ELEMENTS / 15 GROUPS, f = 24.7–67.9 mm
US 2020/0012073 A1↗2020Inventors: Satoshi Maetaki
Example 1CANON RF 85mm f/1.2 L USM— 14 ELEMENTS / 9 GROUPS, f ≈ 86.5 mm
US 2020/0142167 A1↗2020Inventors: Shohei Kikuchi
Example 1CANON RF 24-240mm f/4-6.3 IS USM— 21 ELEMENTS / 15 GROUPS, f ≈ 24.7–232.8 mm
US 2020/0257181 A1↗2020Inventors: Yuichi Gyoda
Example 1CANON RF 15-35mm f/2.8 L IS USM— 16 elements / 12 groups, 3 aspherical elements (6 surfaces)
US 2021/0003831 A1↗2021Inventors: Yasuaki Hagiwara
Example 1CANON RF 24-105mm f/4-7.1 IS STM— 13 ELEMENTS / 11 GROUPS, 24-105mm f/4-7.1 (MARKETED)
US 2021/0003832 A1↗2021Inventors: Masato Katayose, Junya Ichimura
Example 2CANON RF 100-500mm f/4.5-7.1 L IS USM— 20 ELEMENTS / 14 GROUPS, 100-500mm f/4.5-7.1 (MARKETED)
US 2021/0033835 A1↗2021Inventors: Makoto Nakahara
Numerical Example 1CANON RF 70-200mm f/4 L IS USM— 16 ELEMENTS / 11 GROUPS, 4 UD-CLASS ELEMENTS
US 2021/0072505 A1↗2021Inventors: Kana Kobayashi
Numerical Example 1CANON RF 85mm f/2 MACRO IS STM— 12 ELEMENTS / 11 GROUPS, f ≈ 82.45 mm
US 2021/0263286 A1↗2021Inventors: Junya Ichimura
Example 1CANON RF 50mm f/1.8 STM— 6 ELEMENTS / 5 GROUPS, 50mm f/1.8 (MARKETED)
US 2022/0171174 A1↗2022Inventors: Takahiro Hatada
Numerical Example 3CANON RF 14-35mm f/4 L IS USM— 16 ELEMENTS / 12 GROUPS, 14–35mm f/4 (marketed)
US 2023/0213739 A1↗2023Inventors: Makoto Nakahara, Shinya Okuoka
Numerical Example 1CANON RF 24-50mm f/4.5-6.3 IS STM— 8 ELEMENTS / 8 GROUPS, f ≈ 24.7–48.5 mm
US 2023/0213745 A1↗2023Inventors: Takeharu Nakada
Example 4CANON RF 135mm f/1.8 L IS USM— 17 ELEMENTS / 12 GROUPS, f ≈ 130.9 mm
US 2024/0045184 A1↗2024Inventors: Makoto Nakahara
Numerical Example 1CANON RF 10-20mm f/4 L IS STM— 16 ELEMENTS / 12 GROUPS, f ≈ 10.33–19.39 mm
US 2024/0134166 A1↗2024Inventors: Kohei Kimura
Numerical Example 1CANON RF 200-800mm f/6.3-9 IS USM— 17 ELEMENTS / 11 GROUPS, DESIGN 203.00-776.00 mm
US 2024/0192474 A1↗2024Inventors: Shunji Iwamoto
Numerical Example 4CANON RF 24-105mm f/2.8 L IS USM Z— 23 ELEMENTS / 18 GROUPS, f = 24.78–102.06 mm
US 2024/0302626 A1↗2024Inventors: Takashi Ode, Takahiro Hatada
Numerical Example 2CANON RF 35mm f/1.4 L VCM— 14 ELEMENTS / 11 GROUPS, 35 mm f/1.4 (marketing)
US 2024/0329367 A1↗2024Inventors: Yasuaki Hagiwara
Numerical Example 1CANON RF 28-70mm f/2.8 IS STM— 15 ELEMENTS / 12 GROUPS, f = 28.80–67.90 mm (2.36×)
US 2025/0251576 A1↗2025Inventors: Tomohiro Ino
Numerical Example 1CANON RF 50mm f/1.4 L VCM— 14 elements / 11 groups (15 material entries incl. resin cap), f = 48.50 mm patent / 50 mm marketed
US 2025/0389929 A1↗2025Inventors: Takahiro Saito
Numerical Example 1CANON RF 14mm f/1.4 L VCM— 18 ELEMENTS / 13 GROUPS, 14mm f/1.4 (marketed)Numerical Example 2CANON RF 20mm f/1.4 L VCM— Official: 15 elements / 11 groups; BR layer modeled separately, Patent Example 2: 16 optical members / 11 groups
Carl Zeiss AG(2)US 2017/0307860 A1↗2017Inventors: Marco Pretorius, Vladan Blahnik
Embodiment 1CARL ZEISS ULTRA PRIME SONNAR T* 135mm T1.9— 8 ELEMENTS / 7 GROUPS, f ≈ 134.3 mm
US 2018/0180842 A1↗2018Inventors: Marco Pretorius
Embodiment 1CARL ZEISS DISTAGON T* 35mm f/2 (Zeiss ZX1)— 8 elements / 5 groups, f = 35.000 mm
Carl-Zeiss-Stiftung(12)US 1,786,916↗1930Inventors: Willy Merté
Example 2CARL ZEISS JENA BIOTAR 50mm f/1.4— 6 ELEMENTS / 4 GROUPS, f = 49.9567 mm
US 2,724,994↗1955Inventors: Günther Lange
Example IICARL ZEISS PLANAR 80mm f/2.8 (6×6)— 5 ELEMENTS / 4 GROUPS, f ≈ 80.00 mm (modeled)
US 2,799,207↗1957Inventors: Günther Lange
Embodiment ICARL ZEISS PLANAR 80mm f/2.8 (Graflex XL)— 5 ELEMENTS / 4 GROUPS, 80 mm / f ≈ 80.00 mm DESIGN
US 3,038,380↗1962Inventors: Helmut Eismann, Günther Lange
Sole exampleCARL ZEISS B-DISTAGON 35mm f/4 (Contarex)— 7 elements / 4 groups, f = 35 mm
US 3,134,841 A↗1964Inventors: Helmut Knutti
Sole exampleCARL ZEISS TELE-TESSAR 500mm f/8 C— 5 ELEMENTS / 3 GROUPS, DESIGN f = 500.09 mm
US 3,874,771↗1975Inventors: Karl-Heinrich Behrens, Erhard Glatzel
Example 5CARL ZEISS PLANAR T* 50mm f/1.4— 7 ELEMENTS / 6 GROUPS, f ≈ 50.0 mm
US 3,883,229↗1975Inventors: Fritz Determann, Heinz Zajadatz
Example IICARL ZEISS SONNAR SUPERACHROMAT 250mm f/5.6 (Hasselblad V)— 6 ELEMENTS / 6 GROUPS, DESIGN f = 249.20 mm
US 3,915,558↗1975Inventors: Erhard Glatzel
Example 8CARL ZEISS DISTAGON T* 35mm f/1.4— 9 ELEMENTS / 8 GROUPS, f ≈ 36.5 mm
US 3,994,576↗1976Inventors: Erhard Glatzel, Heinz Zajadatz
Example 7CARL ZEISS SONNAR 40mm f/2.8 (Rollei 35 S)— 5 ELEMENTS / 4 GROUPS, DESIGN f = 40.00 mm
US 3,997,247↗1976Inventors: Erhard Glatzel, Heinz Zajadatz
Example 11CARL ZEISS S-BIOGON 40mm f/5.6— 8 ELEMENTS / 5 GROUPS, f ≈ 40.0 mm
US 4,303,312 A↗1981Inventors: Heinrich Basista
Sole exampleCARL ZEISS VARIO-SONNAR T* 70-210mm f/3.5— 15 ELEMENTS / 12 GROUPS, DESIGN f = 72.15–203.20 mm
US 721,240↗1903Inventors: Paul Rudolph
Sole exampleCARL ZEISS JENA TESSAR 144mm f/5.5— 4 ELEMENTS / 3 GROUPS, f ≈ 144 mm (scaled from normalized patent)
Eastman Kodak Company(5)US 2,165,328↗1939Inventors: George H. Aklin, Fred E. Altman
Figure 2KODAK EKTAR 50mm f/3.5— 4 ELEMENTS / 3 GROUPS, 51.60 mm DESIGN / 50 mm MARKETED
US 2,279,384↗1942Inventors: Fred E. Altman
Example 6KODAK ENLARGING EKTAR 100mm f/4.5— 5 ELEMENTS / 3 GROUPS, f ≈ 100.36 mm
US 2,397,565↗1946Inventors: Willy Schade
Example 1KODAK EKTAR 52mm f/1.5— 7 ELEMENTS / 4 GROUPS, f = 52.0207 mm (scaled design)
US 2,518,719↗1950Inventors: Max Reiss
Example 2KODAK WIDE-FIELD EKTAR 100mm f/6.3— 4 elements / 4 groups, EFL 100.09 mm
US 2,983,193↗1961Inventors: Willy Schade
Sole exampleKODAK AERO EKTAR 6 in f/3.5— 6 ELEMENTS / 4 GROUPS, f = 152.58 mm
Enna-Werk Optische Anstalt Dr. Appelt K.G.(2)US 2,821,112↗1958Inventors: Johann Lautenbacher, Theodor Brendel
Sole exampleENNA MÜNCHEN LITHAGON 35mm f/3.5— 4 elements / 4 groups, f ≈ 35.0 mm
US 2,959,100↗1960Inventors: Hans Lautenbacher
Example 1ENNA MÜNCHEN ULTRA-LITHAGON 28mm f/3.5— 6 elements / 6 groups, f ≈ 28.00 mm
Ernst Leitz Canada Limited(1)US 3,006,249↗1961Inventors: Walter Mandler
Example IILEICA SUMMICRON 35mm f/2 I— 8 ELEMENTS / 6 GROUPS, 35.226 mm DESIGN EFL
Ernst Leitz GmbH(11)US 2,995,980↗1961Inventors: Otto Zimmermann, Georg Knetsch
Sole exampleLEICA ELMARIT 90mm f/2.8— 5 ELEMENTS / 3 GROUPS, f ≈ 90.1 mm
US 3,076,383↗1963Inventors: Walter Mandler, Erich Wagner
Example 1LEITZ COLORPLAN 90mm f/2.5 (5-element)— 5 ELEMENTS / 4 GROUPS, f ≈ 89.8 mm
US 3,108,152↗1963Inventors: Eugen Hermanni
Example 2LEICA ELMARIT-M 135mm f/2.8— 5 elements / 4 groups, f ≈ 135.1 mm
US 3,291,553↗1966Inventors: Walter Mandler
Sole exampleLEICA SUMMILUX-M 50mm f/1.4 II— 7 ELEMENTS / 5 GROUPS, 50mm f/1.4
US 3,459,468↗1969Inventors: Helmut Marx, Paul Sindel
Sole exampleLEITZ NOCTILUX 50mm f/1.2— 6 ELEMENTS / 4 GROUPS, DESIGN f = 52 mm
US 3,536,379↗1970Inventors: Georg Knetsch
Sole exampleLEICA TELYT-S 800mm f/6.3— 3 ELEMENTS / 1 CEMENTED GROUP, 800mm f/6.3 MARKETED
US 3,552,833↗1971Inventors: Heinz Marquardt
Sole exampleLEICA MACRO-ELMARIT-R 60mm f/2.8— 6 elements / 5 groups, f = 61.4 mm design, 60 mm nominal
US 3,591,257↗1971Inventors: Walter Mandler, Garry Edwards, Erich Wagner
Example 3LEICA ELMARIT 28mm f/2.8 (11801)— 8 ELEMENTS / 6 GROUPS, f = 28 mm
US 3,649,104↗1972Inventors: Garry Edwards, Walter Mandler, Erich Wagner
Example 3LEICA ELCAN 50mm f/2— 4 ELEMENTS / 4 GROUPS, f ≈ 50.0 mm
US 3,740,120 A↗1973Inventors: Rudolf Rühl
Table IIILEICA ELMARIT-R 28mm f/2.8— 8 ELEMENTS / 8 GROUPS, DESIGN f = 28.00 mm
US 4,123,144↗1978Inventors: Walter Mandler, Garry Edwards, Erich Wagner
Example 8LEICA SUMMICRON-R 50mm f/2— 6 elements / 4 groups, 52.5 mm design focal lengthExample 9LEICA SUMMICRON-M 50mm f/2— 6 ELEMENTS / 4 GROUPS, f = 50.0 mm
Fuji Photo Optical Co., Ltd.(10)US 4,018,512↗1977Inventors: Yutaka Sakai
Example 1FUJIFILM EBC FUJINON-W 35mm f/1.9— 8 elements / 6 groups, 35mm
US 4,158,482↗1979Inventors: Yoshikazu Doi, Yutaka Sakai
Example 1FUJIFILM EBC X-FUJINON W 24mm f/2.8 DM— 9 ELEMENTS / 8 GROUPS, f ≈ 24.003 mm
US 4,195,912↗1980Inventors: Yoshikazu Doi, Yutaka Sakai, Kazunori Ohno
Example 2FUJIFILM FUJINON-Z 43-75mm f/3.5-4.5— 7 elements / 7 groups, 43-75mm marketed; 42.99-71.47mm computed
US 5,548,447↗1996Inventors: Nobuaki Toyama
Example 1FUJIFILM SUPER EBC FUJINON 60mm f/4 (Fujifilm GA645 Professional)— 7 elements / 6 groups, f = 59.998 mm (patent f=100 scaled ×0.6)
US 5,621,575↗1997Inventors: Nobuaki Toyama
Embodiment 6FUJIFILM SUPER EBC FUJINON 45mm f/4 (Fujifilm GA645W/GA645Wi Professional)— 7 elements / 5 groups, 45mm f/4
US 6,445,511 B1↗2002Inventors: You Kitahara
Example 3HASSELBLAD HC 210mm f/4— 10 ELEMENTS / 6 GROUPS, f ≈ 210.0 mm
US 2001/0050819 A1↗2001Inventors: Kazunori Ohno
Embodiment 3HASSELBLAD HC 80mm f/2.8— 6 ELEMENTS / 6 GROUPS, f ≈ 80.0 mm
US 2002/0075570 A1↗2002Inventors: Hiromitsu Yamakawa
Embodiment 1HASSELBLAD HC 150mm f/3.2— 9 ELEMENTS / 8 GROUPS, f ≈ 150 mm
US 2003/0011895 A1↗2003Inventors: Masao Mori
Example 4HASSELBLAD HC 50mm f/3.5— 10 ELEMENTS / 9 GROUPS, f ≈ 50.0 mm
US 2004/0136095 A1↗2004Inventors: Takashi Suzuki
Example 1HASSELBLAD HC 35mm f/3.5— 11 ELEMENTS / 10 GROUPS, SOURCE FOCAL LENGTH 35.76mm; COMPUTED 35.78mm
Fujifilm Corporation(52)US 9,651,761 B2↗2017Inventors: Tetsuya Ori, Michio Cho
Example 1FUJIFILM FUJINON XF 18-135mm f/3.5-5.6 R LM OIS WR— 16 ELEMENTS / 12 GROUPS, MARKETED 18-135 mm f/3.5-5.6
US 10,095,009 B2↗2018Inventors: Tetsuya Ori, Michio Cho
Example 6FUJIFILM FUJINON XC 50-230mm f/4.5-6.7 OIS II— 13 ELEMENTS / 10 GROUPS, DESIGN f = 51.53–223.44 mm
US 10,168,507 B2↗2019Inventors: Ryosuke Nagami, Tetsuya Ori
Example 4FUJIFILM FUJINON XF 50mm f/2 R WR— 9 ELEMENTS / 7 GROUPS, 50 mm f/2 (MARKETED)
US 10,191,246 B2↗2019Inventors: Hiroki Saito
Example 1FUJIFILM FUJINON GF 32-64mm f/4 R LM WR— 14 lens elements / 11 groups, 5 moving zoom groups: + - + - +
US 2012/0063011 A1↗2012Inventors: Takashi Suzuki
Example 1HASSELBLAD HC 50mm f/3.5 II— 11 ELEMENTS / 7 GROUPS, MARKETED 50mm f/3.5
US 2012/0069456 A1↗2012Inventors: Takashi Suzuki
Example 1FUJIFILM FUJINON 23mm f/2 (Fujifilm X100)— 8 ELEMENTS / 6 GROUPS, f ≈ 23.7 mm
US 2014/0133036 A1↗2014Inventors: Taiga Noda, Michio Cho
Example 1FUJIFILM SUPER EBC FUJINON 7.1-28.4mm f/2-2.8 (Fujifilm X10)— 11 ELEMENTS / 9 GROUPS, DESIGN f = 7.342-27.682 mm
US 2014/0240851 A1↗2014Inventors: Daiki Kawamura
Example 4FUJIFILM FUJINON XF 18mm f/2 R— 8 ELEMENTS / 7 GROUPS, f ≈ 18.8 mm
US 2014/0247506 A1↗2014Inventors: Tetsuya Ori
Example 1FUJIFILM FUJINON XF 60mm f/2.4 R Macro— 10 ELEMENTS / 8 GROUPS, f = 61.06 mm (design)
US 2014/0285903 A1↗2014Inventors: Takashi Suzuki
Example 1FUJIFILM FUJINON XF 35mm f/1.4 R— 8 ELEMENTS / 6 GROUPS, f ≈ 36.17 mm
US 2014/0368925 A1↗2014Inventors: Daiki Kawamura
Example 1FUJIFILM FUJINON XC 16-50mm f/3.5-5.6 OIS II— 12 ELEMENTS / 10 GROUPS, MARKETED 16–50mm f/3.5–5.6
US 2014/0368926 A1↗2014Inventors: Takashi Suzuki
Example 4FUJIFILM FUJINON XF 23mm f/1.4 R— 11 ELEMENTS / 8 GROUPS, f ≈ 23.7 mm
US 2015/0131163 A1↗2015Inventors: Taiga Noda
Example 1FUJIFILM FUJINON XF 10-24mm f/4 R OIS— 14 ELEMENTS / 10 GROUPS, 10.33–23.36 mm DESIGN RANGE
US 2015/0168694 A1↗2015Inventors: Takashi Suzuki, Kenichi Sato, Taiga Noda
Example 1FUJIFILM FUJINON XF 14mm f/2.8 R— 10 ELEMENTS / 7 GROUPS, 14 mm / 21 mm equivalent
US 2015/0177500 A1↗2015Inventors: Tetsuya Ori, Michio Cho
Example 1FUJIFILM FUJINON XF 18-55mm f/2.8-4 R LM OIS— 14 ELEMENTS / 10 GROUPS, PATENT f = 18.56–53.46 mm
US 2015/0212302 A1↗2015Inventors: Takashi Suzuki
Example 3FUJIFILM FUJINON XF 56mm f/1.2 R— 11 ELEMENTS / 8 GROUPS, f = 56.98 mm
US 2015/0226942 A1↗2015Inventors: Takashi Suzuki
Example 1FUJIFILM TCL-X100 33mm f/2 (Fujifilm X100)— 12 ELEMENTS / 10 GROUPS, f = 32.818 mm (design)
US 2016/0011404 A1↗2016Inventors: Takashi Suzuki
Example 5FUJIFILM FUJINON XF 27mm f/2.8— 7 ELEMENTS / 5 GROUPS, f = 27.81 mm DESIGN / 27 mm MARKETED
US 2016/0154221 A1↗2016Inventors: Taiga Noda, Michio Cho
Example 1FUJIFILM FUJINON XF 16-55mm f/2.8 R LM WR— 17 ELEMENTS / 12 GROUPS, f = 16.5 – 53.4 mm (PATENT) / 16 – 55 mm (MARKETED)
US 2016/0274335 A1↗2016Inventors: Daiki Kawamura
Example 1FUJIFILM FUJINON XF 90mm f/2 R LM WR— 11 ELEMENTS / 8 GROUPS, f ≈ 87.5 mm (marketed 90 mm)
US 2016/0282590 A1↗2016Inventors: Hiroki Saito, Takashi Suzuki
Example 1FUJIFILM FUJINON XF 16mm f/1.4 R WR— 13 ELEMENTS / 11 GROUPS, 16 mm f/1.4 (MARKETED)
US 2017/0010441 A1↗2017Inventors: Masato Kondo, Takashi Suzuki
Example 1FUJIFILM FUJINON XF 35mm f/2 R WR— 9 ELEMENTS / 6 GROUPS, DESIGN f = 35.326 mm
US 2017/0075089 A1↗2017Inventors: Ryosuke Nagami, Takashi Suzuki
Example 1FUJIFILM FUJINON 18.5mm f/2.8 (Fujifilm X70)— 7 ELEMENTS / 5 GROUPS, f ≈ 19.1 mm
US 2017/0090163 A1↗2017Inventors: Tetsuya Ori
Table 1FUJIFILM FUJINON XF 50-140mm f/2.8 R LM OIS WR— 23 ELEMENTS / 16 GROUPS, f = 50–140 mm (design 51.52–135.96 mm)
US 2017/0090170 A1↗2017Inventors: Taiga Noda
Example 1FUJIFILM FUJINON XF 100-400mm f/4.5-5.6 R LM OIS WR— 100-400mm, f/4.5-5.6
US 2017/0242219 A1↗2017Inventors: Masato Kondo
Example 1FUJIFILM FUJINON GF 63mm f/2.8 R WR— 10 ELEMENTS / 8 GROUPS / 1 ED, 63mm marketed / 62.125mm design
US 2017/0351051 A1↗2017Inventors: Daiki Kawamura
Example 1FUJIFILM FUJINON XF 23mm f/2 R WR— 10 elements / 6 groups, f = 22.377 mm design; 23 mm marketed
US 2018/0059384 A1↗2018Inventors: Taiga Noda
Example 1FUJIFILM FUJINON GF 120mm f/4 R LM OIS WR Macro— 14 ELEMENTS / 9 GROUPS, f ≈ 116.4 mm
US 2018/0100988 A1↗2018Inventors: Masato Kondo
Example 1FUJIFILM FUJINON GF 110mm f/2 R LM WR— 14 ELEMENTS / 9 GROUPS, f ≈ 108.5 mm
US 2018/0210178 A1↗2018Inventors: Hiroki Saito, Shunsuke Miyagishima
Example 1FUJIFILM FUJINON GF 23mm f/4 R LM WR— Patent Example 1: 14 elements / 11 groups, Production lens: 15 elements / 12 groups
US 2018/0246292 A1↗2018Inventors: Ryoko Tomioka, Daiki Kawamura
Example 1FUJIFILM FUJINON XF 80mm f/2.8 R LM OIS WR Macro— 16 ELEMENTS / 12 GROUPS, f = 78.79 mm
US 2019/0094496 A1↗2019Inventors: Shunsuke Miyagishima, Tetsuya Ori
Example 1FUJIFILM FUJINON GF 250mm f/4 R LM OIS WR— 16 ELEMENTS / 10 GROUPS, 250 mm f/4 (MARKETED)
US 2019/0265504 A1↗2019Inventors: Hiroki Saito
Example 1FUJIFILM FUJINON XF 200mm f/2 R LM OIS WR— 19 ELEMENTS / 14 GROUPS, f = 200 mm (200.0 marketed, 194.01 design)
US 2019/0302431 A1↗2019Inventors: Daiki Kawamura
Example 1FUJIFILM FUJINON XF 8-16mm f/2.8 R LM WR— 20 ELEMENTS / 13 GROUPS, 4 ASPHERICAL ELEMENTS / 8 ASPHERICAL SURFACES
US 2019/0361195 A1↗2019Inventors: Masato Kondo
Example 1FUJIFILM FUJINON GF 100-200mm f/5.6 R LM OIS WR— 20 elements / 13 groups, f = 101.68–203.35 mm (patent)
US 2020/0073096 A1↗2020Inventors: Ryosuke Nagami
Example 3FUJIFILM FUJINON XF 16mm f/2.8 R WR— 10 ELEMENTS / 8 GROUPS, 16mm f/2.8 (production)
US 2020/0166730 A1↗2020Inventors: Ryosuke Nagami, Tetsuya Ori
Example 1FUJIFILM FUJINON GF 50mm f/3.5 R LM WR— 9 ELEMENTS / 6 GROUPS, 50 mm MARKETED / 48.57 mm DESIGN
US 2020/0166735 A1↗2020Inventors: Daiki Kawamura, Taiga Noda
Example 11FUJIFILM FUJINON XF 16-80mm f/4 R OIS WR— 16 ELEMENTS / 12 GROUPS, f = 16.5–77.8 mm
US 2020/0174231 A1↗2020Inventors: Taiga Noda
Example 1FUJIFILM FUJINON GF 45mm f/2.8 R WR— 11 elements / 8 groups, f = 44.690 mm patent; 45 mm marketed
US 2020/0333569 A1↗2020Inventors: Masato Kondo
Example 1FUJIFILM FUJINON 23mm f/2 (Fujifilm X100V)— 8 ELEMENTS / 6 GROUPS, f ≈ 23.7 mm
US 2020/0379223 A1↗2020Inventors: Ryoko Tomioka
Example 1FUJIFILM FUJINON GF 45-100mm f/4 R LM OIS WR— 17 elements / 12 groups (patent), Production lens: 16 elements / 12 groups
US 2021/0231927 A1↗2021Inventors: Daiki Kawamura, Michio Cho
Example 3FUJIFILM FUJINON XF 50mm f/1.0 R WR— 12 elements / 9 groups, 1 aspherical element (2 aspherical surfaces)
US 2021/0231930 A1↗2021Inventors: Shunsuke Miyagishima
Example 1FUJIFILM FUJINON GF 30mm f/3.5 R WR— 13 ELEMENTS / 10 GROUPS, f = 30.890 mm (design)
US 2021/0286156 A1↗2021Inventors: Taiga Noda, Ryosuke Nagami
Example 6FUJIFILM FUJINON XF 70-300mm f/4-5.6 R LM OIS WR— 17 ELEMENTS / 12 GROUPS, 70-300mm MARKETED / 72.053-291.097mm EXAMPLE 6
US 2021/0294073 A1↗2021Inventors: Masato Kondo
Example 1FUJIFILM FUJINON GF 80mm f/1.7 R WR— 12 ELEMENTS / 9 GROUPS, f ≈ 78.7 mm
US 2022/0011542 A1↗2022Inventors: Hiroki Saito
Example 1FUJIFILM FUJINON XF 18mm f/1.4 R LM WR— 15 ELEMENTS / 9 GROUPS, 18 mm MARKETING / 17.8993 mm MODELED EFL
US 2022/0236544 A1↗2022Inventors: Ryosuke Nagami
Example 1FUJIFILM FUJINON GF 35-70mm f/4.5-5.6 WR— 11 elements / 9 groups, f=35-70mm; design EFL 36.05-67.89mmExample 10FUJIFILM FUJINON GF 20-35mm f/4 R WR— 14 elements / 10 groups, f = 20.60-33.99 mm design; 20-35 mm marketed
US 2022/0276464 A1↗2022Inventors: Taiga Noda, Ryoko Tomioka
Example 3FUJIFILM FUJINON XF 33mm f/1.4 R LM WR— 33 mm APS-C standard prime, 15 elements / 10 groupsExample 7FUJIFILM FUJINON XF 23mm f/1.4 R LM WR— 15 elements / 10 groups, Patent f = 23.62 mm scaled to 23.00 mm
US 2023/0341664 A1↗2023Inventors: Yasutaka Shimada, Shunsuke Miyagishima
Example 1FUJIFILM FUJINON GF 55mm f/1.7 R WR— 55mm f/1.7, 14 elements / 10 groups
US 2025/0234079 A1↗2025Inventors: Yuya Hirakawa, Taiga Noda
Example 1FUJIFILM FUJINON XF 16-55mm f/2.8 R LM WR II— 16 elements / 11 groups, f = 16.50–53.40 mm patent design
US 2025/0362482 A1↗2025Inventors: Daiki Komatsu
Example 5FUJIFILM FUJINON 35mm f/4 (Fujifilm GFX100RF)— 10 elements / 8 groups, f = 34.846 mm
US 2026/0118637 A1↗2026Inventors: Taiga Noda
Example 4FUJIFILM FUJINON XF 23mm f/2.8 R WR— 23mm, f/2.8
Fujinon Corporation(3)US 2006/0007561 A1↗2006Inventors: Takashi Suzuki
Embodiment 1FUJIFILM SUPER EBC FUJINON 24mm f/1.9 (Fujifilm Natura S)— 7 ELEMENTS / 6 GROUPS, 4 ASPHERICAL SURFACES ON L4 AND L6
US 2006/0209426 A1↗2006Inventors: Takashi Suzuki
Example 1HASSELBLAD HC 300mm f/4.5— 9 ELEMENTS / 7 GROUPS, f ≈ 292.0 mm
US 2009/0190239 A1↗2009Inventors: Takashi Suzuki
Example 1NIKON AF-S NIKKOR 500mm f/4 G ED VR— 14 ELEMENTS / 11 GROUPS + PROTECTIVE GLASS, DESIGN f = 489.79 mm
Hoya Corporation(4)US 7,411,746 B2↗2008Inventors: Koji Kato, Masakazu Saori
Embodiment 1PENTAX DA 21mm f/3.2 AL Limited— 8 elements / 5 groups, f = 21.60 mm design; 21 mm nominal
US 7,542,219 B2↗2009Inventors: Masakazu Saori
Embodiment 1PENTAX DA 70mm f/2.4 Limited— 6 elements / 5 groups, 70 mm (scaled from patent f=67.74)
US 7,715,118 B2↗2010Inventors: Koji Kato
Example 1PENTAX DA 35mm f/2.8 Macro Limited— 9 elements / 8 groups, 35 mm marketed; 34.41 mm patent EFL
US 7,804,652 B2↗2010Inventors: Masakazu Saori
Embodiment 4PENTAX SMC DA 17-70mm f/4 AL [IF] SDM— 17 ELEMENTS / 12 GROUPS, DESIGN 17.50–67.89 mm
Jos. Schneider & Co., Optische Werke(12)US 2,824,495↗1958Inventors: Günter Klemt
Sole exampleSCHNEIDER-KREUZNACH RETINA-CURTAGON 28mm f/4— 7 ELEMENTS / 6 GROUPS, 28.001 mm DESIGN EFL
US 3,005,379↗1961Inventors: Günter Klemt
Table ASCHNEIDER-KREUZNACH CINE-XENON 25mm f/1.4— 7 ELEMENTS / 4 GROUPS, f ≈ 25.015 mm
US 3,038,379↗1962Inventors: Wolfram W. Albrecht
Sole exampleSCHNEIDER-KREUZNACH CINEGON 10mm f/1.8— 9 ELEMENTS / 5 GROUPS, f = 10.02055 mm (MODELED)
US 3,057,257↗1962Inventors: Günter Klemt, Karl Heinrich Macher
Sole exampleSCHNEIDER-KREUZNACH VARIOGON 10-40mm f/2.8— 13 ELEMENTS / 9 GROUPS, 10-40mm
US 3,318,653↗1967Inventors: Karl Heinrich Macher
Sole exampleSCHNEIDER-KREUZNACH CURTAGON 35mm f/2.8— 6 ELEMENTS / 6 GROUPS, 35mm NOMINAL / 36.6mm EFFECTIVE
US 3,336,094↗1967Inventors: Karl Heinrich Macher
Table BSCHNEIDER-KREUZNACH TELE-VARIOGON 80-240mm f/4— 14 ELEMENTS / 9 GROUPS, 80-240mm
US 3,376,091↗1968Inventors: Werner Wagner, Karl Heinrich Macher
Table ISCHNEIDER-KREUZNACH SUPER-ANGULON 75mm f/5.6— 8 ELEMENTS / 4 GROUPS, f ≈ 75.1 mm
US 3,410,632↗1968Inventors: Walter Wöltche
Table IISCHNEIDER-KREUZNACH PA-CURTAGON-R 35mm f/4— 7 ELEMENTS / 6 GROUPS, f ≈ 35.2 mm
US 3,442,573↗1969Inventors: Karl Heinrich Macher
Example 1SCHNEIDER-KREUZNACH VARIOGON 8-40mm f/1.8— 12 LENSES + REFLEX PRISM, 8-40mm f/1.8
US 3,482,900↗1969Inventors: Werner Wagner
Sole exampleSCHNEIDER-KREUZNACH VARIOGON 45-100mm f/2.8— 14 ELEMENTS / 10 PATENT MEMBERS, DESIGN 48-96 mm
US 3,512,874↗1970Inventors: Walter Wöltche
Example 3LEICA SUPER-ANGULON-R 21mm f/4— 10 ELEMENTS / 8 GROUPS, 21mm (20.9993mm MODELED EFL)
US 3,912,373↗1975Inventors: Karl Macher
Table ISCHNEIDER-KREUZNACH TV-VARIOGON 20-600mm f/2.1-6.6— 31 ELEMENTS / 22 GROUPS, 20-600mm MARKETED; 20-592mm SOURCE STATIONS ×20
Jos. Schneider Optische Werke Kreuznach GmbH & Co. KG(3)US 4,773,745↗1988Inventors: Hiltrud Ebbesmeier née Schitthof
Embodiment 1SCHNEIDER-KREUZNACH SUPER-SYMMAR HM 120mm f/5.6— 8 ELEMENTS / 6 GROUPS, f = 121.6 mm (SCALED PATENT MODEL)
US 5,870,234↗1999Inventors: Hiltrud Ebbesmeier née Schitthof
Example 2SCHNEIDER-KREUZNACH SUPER-SYMMAR XL 110mm f/5.6 ASPHERIC— 6 ELEMENTS / 5 GROUPS (PATENT), f ≈ 110.6 mm (e-line)
US 6,028,720↗2000Inventors: Rolf Wartmann, Udo Schauss
Numerical Embodiment 2SCHNEIDER-KREUZNACH APO-SYMMAR 100mm f/5.6— 6 ELEMENTS / 4 GROUPS, f ≈ 103.0 mm (d-line)
Konica Minolta Advanced Layers, Inc.(1)US 8,767,319 B2↗2014Also assigned to: Nikon Corporation
Inventors: Yoshihito Souma, Satoru Shibata
Example 1NIKON AF-S NIKKOR 85mm f/1.4 G— 10 ELEMENTS / 9 GROUPS, f = 85.0 mm
Konica Minolta, Inc.(1)US 9,256,059 B2↗2016Also assigned to: Nikon Corporation
Inventors: Kana Inoue, Mamoru Terada, Haruo Sato
Example 1NIKON AF-S NIKKOR 18-35mm f/3.5-4.5 G ED— 12 elements / 8 groups, 18-35mm FX
Konishiroku Photo Industry Co., Ltd.(3)US 3,584,935↗1971Inventors: Tadashi Kojima
Sole exampleKONICA VARIFOCAL HEXANON AR 35-100mm f/2.8— 15 ELEMENTS / 10 GROUPS, 35.992-100.000 mm DESIGN
US 3,615,126↗1971Inventors: Tadashi Kojima
Embodiment IKONICA HEXANON 38mm f/2.8 (Konica C35)— 4 ELEMENTS / 3 GROUPS, f = 38mm nominal
US 4,170,403↗1979Inventors: Toshiko Shimokura
Example 1KONICA HEXANON AR 35mm f/2.8— 5 ELEMENTS / 5 GROUPS, f ≈ 35.00 mm
Leica Camera AG(2)US 2022/0066176 A1↗2022Inventors: Stefan Roth, Kathrin Keller
Sole exampleLEICA APO-SUMMICRON-M 35mm f/2 ASPH.— 10 ELEMENTS / 5 GROUPS, f = 35.0 mm (e-line, patent f = 1 × 35)
US 2025/0271647 A1↗2025Inventors: Stefan Roth
Embodiment 2LEICA NOCTILUX-M 35mm f/1.2 ASPH.— 10 ELEMENTS / 5 GROUPS, DESIGN f = 35 mm (PRINTED TABLE 34.75 mm)
Leica Camera GmbH(2)US 5,161,060 A↗1992Inventors: Walter Watz
Sole exampleLEICA SUMMILUX-M 35mm f/1.4 ASPHERICAL— 9 ELEMENTS / 5 GROUPS, 35mm MARKETING; EFL ≈ 35.412mm
US 5,321,555 A↗1994Inventors: Lothar Koelsch, Klaus-Dieter Schaefer
Sole exampleLEICA ELMAR 35mm f/3.5 (Leica Mini II)— 4 ELEMENTS / 3 GROUPS, DESIGN f = 33.63 mm
Les Appareils de Precision Kinoptik(1)US 3,037,426↗1962Inventors: Edgard Hugues
Example 1KINOPTIK TEGEA 5.7mm f/1.8— 12.70 mm FORMAT DIAGONAL, 6 ELEMENTS / 6 GROUPSExample 2KINOPTIK TEGEA 9.8mm f/1.8— 27.20 mm FORMAT DIAGONAL, 9 ELEMENTS / 6 GROUPSExample 3KINOPTIK SUPER-TEGEA 1.9mm f/1.9 FISHEYE— 7 ELEMENTS / 7 GROUPS, 3 DIOPTRIC SYSTEMS
Minolta Camera Co., Ltd.(22)US 3,589,798↗1971Inventors: Toshinobu Ogura
Embodiment IIMINOLTA MC FISH-EYE ROKKOR-OK 16mm f/2.8— MINOLTA: 11 ELEMENTS / 8 GROUPS INCLUDING BUILT-IN FILTER, ACTIVE MODEL: 10 ELEMENTS / 7 GROUPS
US 3,973,832↗1976Inventors: Toshinobu Ogura, Akiyoshi Nakamura
Example 2MINOLTA MD 28mm f/2.8 (7 elements / 7 groups)— 7 ELEMENTS / 7 GROUPS, f = 27.9955 mm (DESIGN)
US 4,009,943↗1977Inventors: Mitsuaki Horimoto
Example 2MINOLTA MD FISHEYE ROKKOR-X 7.5mm f/4— 12 ELEMENTS / 8 GROUPS, DESIGN f = 7.50 mm
US 4,124,276↗1978Inventors: Yukio Okano, Akiyoshi Nakamura, Toshinobu Ogura
Embodiment 3MINOLTA VARISOFT ROKKOR 85mm f/2.8— 6 ELEMENTS / 5 GROUPS, f ≈ 85.0 mm (production) · 100.0 mm (patent)
US 4,126,378 A↗1978Inventors: Shuji Ogino
Example 3MINOLTA MD APO TELE 600mm f/6.3— 8 POWERED ELEMENTS / 7 GROUPS, f ≈ 599.639 mm
US 4,147,410↗1979Inventors: Masaichi Shimomura, Mitsuaki Horimoto
Embodiment 1MINOLTA MD ZOOM 24-50mm f/4— 13 ELEMENTS / 11 GROUPS, DESIGN f = 24.51-48.59 mm
US 4,182,550↗1980Inventors: Tamikazu Yamaguchi
Embodiment 2MINOLTA MD ROKKOR 50mm f/1.4— 7 ELEMENTS / 6 GROUPS, f ≈ 50.0 mm
US 4,192,577↗1980Inventors: Shuji Ogino
Embodiment 1MINOLTA MD ZOOM 50-135mm f/3.5— 12 ELEMENTS / 10 GROUPS, PATENT 51.5-131.5mm
US 4,214,816↗1980Inventors: Tamikazu Yamaguchi
Example 1MINOLTA MD 135mm f/2.8— 5 ELEMENTS / 5 GROUPS, 135mm
US 4,258,985↗1981Inventors: Akiyoshi Nakamura
Example 4MINOLTA AF 28mm f/2— 9 elements / 9 groups, f = 28.0 mm
US 4,264,136 A↗1981Inventors: Shuji Ogino
Example 2MINOLTA RF 250mm f/5.6— 5 PHYSICAL ELEMENTS / 4 GROUPS, 2 SECOND-SURFACE MIRRORS
US 4,277,149↗1981Inventors: Kunihiko Konoma
Embodiment 7MINOLTA MD ROKKOR 45mm f/2— 6 ELEMENTS / 5 GROUPS, f ≈ 45.0 mm
US 4,444,473↗1984Inventors: Yoshinobu Kudo
Example 5MINOLTA MD 50mm f/2— 6 ELEMENTS / 5 GROUPS, 50 mm f/2
US 4,493,536↗1985Inventors: Yoshinobu Kudo
Embodiment 1MINOLTA MD 28mm f/2.8 (5 elements / 5 groups)— 5 ELEMENTS / 5 GROUPS, 28.0119 mm MODEL EFL
US 4,518,229↗1985Inventors: Mitsuo Yasukuni
Example 8MINOLTA AF APO TELE 300mm f/2.8— Patent Example 8: f = 295.0 mm, FN = 2.9, Marketed as 300mm f/2.8
US 4,560,253↗1985Inventors: Shuji Ogino
Embodiment 2MINOLTA AF ZOOM 35-70mm f/4— 6 components / 6 air-spaced groups, 7 modeled optical media including hybrid resin layer
US 4,764,000↗1988Inventors: Hisashi Tokumaru
Embodiment 8MINOLTA AF 100mm f/2.8 Macro— 8 elements / 8 groups, f = 100.0 mm design
US 4,786,152↗1988Inventors: Tetsuya Arimoto
Embodiment 3MINOLTA AF APO TELE 200mm f/2.8— 200mm f/2.8, 8 elements / 7 groups
US 4,806,003↗1989Inventors: Hiromu Mukai, Hisashi Tokumaru
Example 2MINOLTA AF 35mm f/1.4— 10 ELEMENTS / 8 GROUPS, 35mm MARKETED / 34.983 mm DESIGN
US 4,871,239↗1989Inventors: Hisayuki Masumoto, Akira Fukushima
Example 3MINOLTA AF 35-105mm f/3.5-4.5 New (v2)— 35-105 mm full-frame A-mount zoom, Patent f = 36.0-60.0-102.0 mm
US 4,951,078↗1990Inventors: Takashi Okada
Embodiment 1MINOLTA AF REFLEX 500mm f/8— 500 mm f/8 fixed, f = 495.97 mm patent EFL
US 5,249,079 A↗1993Inventors: Hiromu Umeda
Sole exampleMINOLTA MD ZOOM 35-135mm f/3.5-4.5— 14 ELEMENTS / 12 GROUPS, 35-135mm f/3.5-4.5
Miranda Camera Co., Ltd.(1)US 3,634,001 A↗1972Inventors: Kunio Shimada
Example IMIRANDA AUTO E 50mm f/1.4— 7 ELEMENTS / 5 GROUPS, f ≈ 50.004 mm
Nikon Corporation(68)US 4,806,000↗1989Inventors: Yoshiharu Shiokama, Naoto Ohta, Hiroshi Okano, Kiyotaka Inadome
Sole exampleNIKON AF ZOOM-NIKKOR 28-85mm f/3.5-4.5— 15 elements / 11 groups, computed f = 28.833-83.289 mm
US 4,812,027 A↗1989Inventors: Masaaki Yanagisawa
Embodiment 1NIKON AI AF NIKKOR 85mm f/1.8 S— 6 ELEMENTS / 6 GROUPS, 85 mm
US 4,908,639 A↗1990Inventors: Masaaki Yanagisawa
Example 1NIKON AI AF DC-NIKKOR 105mm f/2 D— 6 ELEMENTS / 6 GROUPS, 105 mm f/2Example 2NIKON AF DC-NIKKOR 135mm f/2 D— 7 ELEMENTS / 6 GROUPS, 135mm f/2
US 5,243,468↗1993Inventors: Motoyuki Ohtake
Embodiment 5NIKON NIKKOR 35mm f/2.8 (Nikon 35Ti)— 6 ELEMENTS / 4 GROUPS, f ≈ 35.0 mm
US 5,257,137↗1993Inventors: Fumio Suzuki, Yoshinari Hamanishi
Example 1NIKON R-UW AF MICRO-NIKKOR 50mm f/2.8— 10 elements / 9 groups, f = 51.6 mm in water
US 5,276,553 A↗1994Inventors: Wataru Tatsuno
Example 1NIKON AI AF ZOOM-NIKKOR 20-35mm f/2.8 D IF— 14 ELEMENTS / 11 AIR-SEPARATED UNITS / 4 ZOOM GROUPS, 20-35mm MARKETED / 20.5-34.0mm PATENT DESIGN
US 5,315,441 A↗1994Inventors: Kenji Hori, Wataru Tatsuno
Embodiment 1NIKON AF NIKKOR 28mm f/1.4 D— 11 ELEMENTS / 8 GROUPS, f = 28.6208 mm
US 5,402,268↗1995Inventors: Wataru Tatsuno
Example 1NIKON AF MICRO-NIKKOR 200mm f/4 D IF-ED— 13 ELEMENTS / 8 GROUPS, f = 200.1457 mm
US 5,434,713 A↗1995Inventors: Haruo Sato
Example 1NIKON AF FISHEYE-NIKKOR 16mm f/2.8 D— 8 ELEMENTS / 5 GROUPS, DESIGN EFL 15.66855 mm
US 5,438,455 A↗1995Inventors: Masahiro Nakashima
Embodiment 1NIKON AF-I NIKKOR 400mm f/2.8 D IF-ED— 10 ELEMENTS / 7 GROUPS, 400mm f/2.8 MARKETED
US 5,485,314↗1996Inventors: Haruo Sato
Embodiment 4NIKON AF ZOOM-NIKKOR 28-80mm f/3.3-5.6 G— 6 production elements / 6 air-spaced groups, Negative-positive two-group zoom
US 5,490,012↗1996Inventors: Kouichi Ohshita
Embodiment 1NIKON R-UW AF ZOOM-NIKKOR 20-35mm f/2.8— 9 powered elements / 9 groups + rear protective plate, f = 20.60-34.00 mm in water
US 5,528,428↗1996Inventors: Motoyuki Ohtake, Motohisa Mouri
Embodiment 3NIKON NIKKOR 28mm f/2.8 (Nikon 28Ti)— 7 ELEMENTS / 5 GROUPS, f ≈ 28.9 mm
US 5,557,473↗1996Inventors: Yoshikazu Sugiyama, Haruo Sato
Embodiment 3NIKON AF NIKKOR 28mm f/2.8 D— 6 elements / 6 groups, f = 28.60 mm
US 5,579,169↗1996Inventors: Motohisa Mouri
Example 1NIKON R-UW AF FISHEYE-NIKKOR 13mm f/2.8— 10 ELEMENTS / 7 GROUPS, f = 12.32 mm in water
US 5,579,171 A↗1996Inventors: Kenzaburo Suzuki, Masahiro Nakatsuji, Keiji Moriyama
Example 3NIKON AI AF ZOOM-NIKKOR 80-200mm f/2.8 D ED— 16 ELEMENTS / 11 GROUPS, 80-200mm f/2.8 (MARKETED)
US 5,640,277 A↗1997Inventors: Kouichi Ohshita
Example 2NIKON AF NIKKOR 85mm f/1.4 D IF— 10 ELEMENTS / 9 GROUPS · PATENT CANDIDATE, f = 85.0 mm
US 5,717,527↗1998Inventors: Atsushi Shibayama
Embodiment 7NIKON AF ZOOM-MICRO NIKKOR 70-180mm f/4.5-5.6 D ED— 18 elements / 14 groups, Patent f = 82.4-194.0 mm
US 5,734,508 A↗1998Inventors: Haruo Sato
Working Example 1NIKON AI AF ZOOM-NIKKOR 24-120mm f/3.5-5.6 D IF— 15 ELEMENTS / 11 GROUPS, DESIGN f = 24.701-116.518 mm
US 5,745,306 A↗1998Inventors: Susumu Sato
Example 1NIKON AI AF-S NIKKOR 300mm f/2.8 D IF-ED— 11 ELEMENTS / 8 GROUPS, 3 ED ELEMENTSExample 2NIKON AI AF-S NIKKOR 500mm f/4 D IF-ED— 11 ELEMENTS / 9 GROUPS, 3 ED ELEMENTSExample 3NIKON AI AF-S NIKKOR 600mm f/4 D IF-ED II— 10 ELEMENTS / 7 GROUPS, 600 mm f/4 (marketed)
US 5,751,485↗1998Inventors: Kenzaburo Suzuki
Embodiment 1NIKON AF MICRO-NIKKOR 60mm f/2.8 D— 8 ELEMENTS / 7 GROUPS, DESIGN f = 59.9998 mm
US 5,764,425↗1998Inventors: Kouichi Ohshita
Embodiment 4NIKON GUGUTTO MACRO 120mm f/4.5— 3 elements / 2 groups, 120mm f/4.5 fixed aperture
US 5,796,530↗1998Inventors: Kouichi Ohshita
Example Embodiment 2NIKON FUWATTO SOFT 90mm f/4.8— 1 group / 2 elements, f = 90.63 mm computed; 90 mm marketed
US 5,917,663↗1999Inventors: Kenzaburo Suzuki
Example 2NIKON AI NIKKOR 28mm f/2.8 S— 8 elements / 8 groups, f = 28.610 mm
US 5,949,588↗1999Inventors: Kouichi Ohshita, Atsushi Shibayama
Embodiment 8NIKON GYOGYOTTO 20mm f/8— 3 elements / 2 groups, f = 20.0 mm (scaled from patent f = 100)
US 6,141,156 A↗2000Inventors: Masayuki Aoki
Working Example 4NIKON AI AF VR ZOOM-NIKKOR 80-400mm f/4.5-5.6 D ED— 17 ELEMENTS / 11 GROUPS, 80-400mm MARKETED (81.976-390.000mm EXAMPLE 4)
US 6,239,919 B1↗2001Inventors: Susumu Sato
Example 4NIKON AI AF-S NIKKOR 400mm f/2.8 D IF-ED II— 11 ELEMENTS / 9 GROUPS, 400 mm marketed / 391.999 mm design
US 6,320,698 B1↗2001Inventors: Kenzaburo Suzuki
Embodiment 3NIKON AF ZOOM-NIKKOR 35-70mm f/2.8 D— 15 elements / 12 groups, 35-70mm f/2.8
US 6,621,643 B2↗2003Inventors: Haruo Sato
Example 1NIKON AF ZOOM-NIKKOR 28-200mm f/3.5-5.6 G IF-ED— 12 physical elements / 11 groups (14 material layers modeled), Production: 28-200mm f/3.5-5.6
US 6,940,655 B2↗2005Inventors: Haruo Sato
Example 1NIKON AF-S DX ZOOM-NIKKOR 12-24mm f/4 G IF-ED— 11 GLASS ELEMENTS / 7 GROUPS, 12.3000-23.3001 mm DESIGN
US 7,161,746 B2↗2007Inventors: Keiko Mizuguchi
Example 9NIKON AF DX FISHEYE-NIKKOR 10.5mm f/2.8 G ED— 10 elements / 7 groups, Patent f = 10.565 mm; marketed 10.5 mm
US 7,218,457 B2↗2007Inventors: Takayuki Sensui
Example 3NIKON AF-S VR MICRO-NIKKOR 105mm f/2.8 G IF-ED— 14 elements / 11 groups, Patent example; compatible glass counterparts
US 7,359,125 B2↗2008Inventors: Yoko Kimura, Haruo Sato
Example 1NIKON AF-S NIKKOR 14-24mm f/2.8 G ED— 14 ELEMENTS / 11 GROUPS (+ HYBRID RESIN LAYER), f = 14.4–23.8 mm
US 7,508,592 B2↗2009Inventors: Hiroki Harada
Example 2NIKON AF-S NIKKOR 24-70mm f/2.8 G ED— 24-70mm f/2.8 marketed; f=24.78-67.70mm, FNO=2.91 design, 15 elements / 11 groups production count
US 7,656,591 B2↗2010Inventors: Hiroshi Yamamoto
Example 1NIKON PC-E MICRO-NIKKOR 45mm f/2.8 D ED— 9 ELEMENTS / 8 GROUPS, f ≈ 41.2 mm (design) · 45 mm (marketed)
US 7,898,744 B2↗2011Inventors: Mitsuaki Wada
Example 2NIKON AF-S MICRO-NIKKOR 60mm f/2.8 G ED— 12 ELEMENTS / 9 GROUPS, f ≈ 58.0 mm (patent) / 60 mm (marketed)
US 8,169,718 B2↗2012Also assigned to: Tamron Co., Ltd.
Inventors: Dayong Li, Hiroshi Yamamoto, Hiroki Harada
Embodiment 4NIKON AF-S DX NIKKOR 10-24mm f/3.5-4.5 G ED— 14 PHYSICAL ELEMENTS / 9 GROUPS, 16 MODELED REFRACTIVE MEDIA ENTRIES
US 8,416,506 B2↗2013Inventors: Tomoki Ito
Example 6NIKON AF-S NIKKOR 70-200mm f/2.8 G ED VR II— 70-200 mm f/2.8 FX telephoto zoom, Patent design: f = 71.40-196.00 mm, FNO = 2.89
US 8,416,512 B2↗2013Inventors: Hiroki Harada, Yasushi Yamamoto
Example 3NIKON AF-S NIKKOR 24mm f/1.4 G ED— 12 glass elements / 10 groups, Patent f = 24.68 mm
US 8,767,319 B2↗2014Also assigned to: Konica Minolta Advanced Layers, Inc.
Inventors: Yoshihito Souma, Satoru Shibata
Example 1NIKON AF-S NIKKOR 85mm f/1.4 G— 10 ELEMENTS / 9 GROUPS, f = 85.0 mm
US 9,256,059 B2↗2016Also assigned to: Konica Minolta, Inc.
Inventors: Kana Inoue, Mamoru Terada, Haruo Sato
Example 1NIKON AF-S NIKKOR 18-35mm f/3.5-4.5 G ED— 12 elements / 8 groups, 18-35mm FX
US 10,690,896 B2↗2020Inventors: Kosuke Machida, Takeshi Suzuki, Takeru Uehara
Example 1NIKON AF-P DX NIKKOR 18-55mm f/3.5-5.6 G VR— 12 elements / 9 groups (manufacturer count), 13 modeled optical material bodies
US 2001/0030812 A1↗2001Inventors: Akiko Furuta
Example 2NIKON AI AF ZOOM-NIKKOR 18-35mm f/3.5-4.5 D IF-ED— 18-35mm f/3.5-4.5, 11 ELEMENTS / 8 GROUPS
US 2003/0072085 A1↗2003Inventors: Keiko Mizuguchi, Atsushi Shibayama
Example 1NIKON ZOOM-NIKKOR 5.6-16.8mm f/2.7-4.8 (Nikon COOLPIX SQ)— 7 ELEMENTS / 6 GROUPS, 3 POWER GROUPS: NEGATIVE / POSITIVE / POSITIVE
US 2003/0133200 A1↗2003Inventors: Susumu Sato
Example 1NIKON AF-S VR ZOOM-NIKKOR 70-200mm f/2.8 G IF-ED— 21 ELEMENTS / 15 GROUPS, 70-200mm MARKETED; 71.4-196.0mm DESIGN
US 2004/0218274 A1↗2004Inventors: Misako Aoki
Example 2NIKON AF-S VR ZOOM-NIKKOR 24-120mm f/3.5-5.6 G IF-ED— 15 ELEMENTS / 13 GROUPS, 24.720-116.500 mm DESIGN
US 2005/0013015 A1↗2005Inventors: Takayuki Sensui
Example 5NIKON AF-S DX ZOOM-NIKKOR 17-55mm f/2.8 G IF-ED— 14 ELEMENTS / 10 GROUPS, 17.55-52.70 mm DESIGN
US 2005/0068636 A1↗2005Inventors: Satoshi Hayakawa
Example 1NIKON AF-S DX ZOOM-NIKKOR 18-70mm f/3.5-4.5 G IF-ED— 15 elements / 13 groups (physical count), 18-70mm f/3.5-4.5 (production)
US 2005/0157403 A1↗2005Inventors: Susumu Sato
Example 1NIKON AF-S VR ZOOM-NIKKOR 200-400mm f/4 G IF-ED— 24 ELEMENTS / 17 GROUPS, 200-400mm f/4 (MARKETED)
US 2006/0007559 A1↗2006Inventors: Haruo Sato
Example 4NIKON AF-S DX ZOOM-NIKKOR 18-55mm f/3.5-5.6 G ED II— 7 ELEMENTS / 5 GROUPS, 18-55mm f/3.5-5.6 (MARKETED)
US 2006/0072213 A1↗2006Inventors: Atsushi Shibayama, Takeshi Suzuki, Tomoki Ito
Example 2NIKON AF-S DX VR ZOOM-NIKKOR 18-200mm f/3.5-5.6 G IF-ED— 16 PHYSICAL ELEMENTS / 12 GROUPS, 18-200mm marketed; 18.50109-194.99580mm patent control points
US 2009/0190220 A1↗2009Inventors: Haruo Sato
Example 1NIKON AF-S DX MICRO-NIKKOR 85mm f/3.5 G ED VR— 14 ELEMENTS / 10 GROUPS, 85 mm
US 2010/0220400 A1↗2010Inventors: Hiroshi Yamamoto, Satoshi Miwa, Takeshi Suzuki, Haruo Sato
Example 1NIKON AF-S NIKKOR 24-120mm f/4 G ED VR— 17 elements / 13 groups, 24-120 mm f/4 FX standard zoomExample 2NIKON AF-S NIKKOR 28-300mm f/3.5-5.6 G ED VR— 28-300mm FX superzoom, 19 glass elements / 14 production groups
US 2010/0238560 A1↗2010Inventors: Makoto Fujimoto
Example 1NIKON AF-S NIKKOR 16-35mm f/4 G ED VR— 17 ELEMENTS / 11 GROUPS (+ RESIN LAYER), f = 16.48–33.94 mm
US 2011/0102905 A1↗2011Inventors: Hiroki Harada
Example 1NIKON AF-S DX NIKKOR 55-300mm f/4.5-5.6 G ED VR— 17 elements / 11 groups, 56.09-293.90 mm design EFL
US 2011/0170195 A1↗2011Inventors: Mami Muratani, Issei Tanaka
Example 1NIKON AF-S DX MICRO-NIKKOR 40mm f/2.8 G— PATENT: 9 ELEMENTS / 8 GROUPS, PRODUCTION: 9 ELEMENTS / 7 GROUPS
US 2012/0019926 A1↗2012Inventors: Akira Yamagami
Example 4NIKON 1 NIKKOR VR 10-30mm f/3.5-5.6— 12 ELEMENTS / 9 GROUPS, 10.3-29.1 mm patent design
US 2015/0153549 A1↗2015Inventors: Mami Muratani
Example 4NIKON 1 NIKKOR 11-27.5mm f/3.5-5.6— 11-27.5mm CX-format zoom, Patent f = 11.35-26.71 mm
US 2017/0315337 A1↗2017Inventors: Satoshi Yamaguchi, Issei Tanaka
Example 1NIKON AF-S NIKKOR 70-200mm f/4 G ED VR— 20 ELEMENTS / 14 GROUPS, 71.39–194.00 mm DESIGN EFL
US 2018/0031811 A1↗2018Inventors: Satoshi Miwa, Masashi Yamashita
Example 4NIKON AF-S NIKKOR 600mm f/4 E FL ED VR— 16 IMAGING ELEMENTS / 12 GROUPS + PROTECTIVE MENISCUS, 2 FLUORITE / 4 ED (PRODUCTION SPECIFICATION)
US 2018/0196240 A1↗2018Inventors: Makoto Fujimoto, Takeshi Umeda
Example 11NIKON 1 NIKKOR VR 10-30mm f/3.5-5.6 PD-ZOOM— 9 ELEMENTS / 7 GROUPS, 10-30mm MARKETED; 10.2-29.4mm PATENT
US 2018/0252903 A1↗2018Inventors: Satoshi Yamaguchi
Example 1NIKON AF-S DX NIKKOR 16-80mm f/2.8-4 E ED VR— 17 ELEMENTS / 13 GROUPS, 16.49–77.79 mm PATENT DESIGN
US 2019/0353880 A1↗2019Inventors: Kosuke Machida
Example 1NIKON AF-P NIKKOR 70-300mm f/4.5-5.6 E ED VR— 18 elements / 14 groups, Patent design f=72.10-292.01 mm
US 2020/0049962 A1↗2020Inventors: Tomoki Ito
Example 1NIKON AF-S NIKKOR 80-400mm f/4.5-5.6 G ED VR— 20 ELEMENTS / 12 GROUPS, f = 80–400 mm (design 81.6–392.0 mm)
US 2020/0142168 A1↗2020Inventors: Hiroki Harada
Example 1NIKON AF-S NIKKOR 24-70mm f/2.8 E ED VR— 20 ELEMENTS / 16 GROUPS, f = 24–70 mm
US 2020/0348497 A1↗2020Inventors: Akihiko Obama, Masashi Yamashita
Example 8NIKON 1 NIKKOR VR 10-100mm f/4-5.6— 10-100mm marketed range, f/4-5.6 marketed maximum aperture
US 2021/0026133 A1↗2021Inventors: Masashi Yamashita, Tomoki Ito, Hiroshi Yabumoto, Hiroshi Yamamoto, Satoshi Miwa, Keisuke Tsubonoya, Ayumu Makida, Takeru Uehara
Example 4NIKON AF-P DX NIKKOR 70-300mm f/4.5-6.3 G ED VR— 70-300 mm marketed; 72.1-292.1 mm patent, f/4.5-6.3 marketed; f/4.707-6.494 patent
US 2026/0056396 A1↗2026Inventors: Takeru Uehara
Example 1NIKON NIKKOR Z DX 12-28mm f/3.5-5.6 PZ VR— 12 elements / 11 groups, Patent f = 12.36-27.16 mm
Nippon Kogaku K.K.(49)US 2,828,671↗1958Inventors: Saburo Murakami
Sole exampleNIKON NIKKOR-N 5cm f/1.1— 9 elements / 6 groups, Modified double-Gauss
US 2,896,506↗1959Inventors: Hideo Azuma
Sole exampleNIKON W-NIKKOR 35mm f/1.8— 7 elements / 5 groups, f = 35.005 mm
US 3,481,666↗1969Inventors: Takashi Higuchi
Example 3NIKON ZOOM-NIKKOR AUTO 50-300mm f/4.5— 20 ELEMENTS / 13 GROUPS, 50-300mm f/4.5
US 3,507,556↗1970Inventors: Yoshiyuki Shimizu
Embodiment 1NIKON REFLEX-NIKKOR 1000mm f/11— 5 elements / 5 groups, f ≈ 1001.4 mm
US 3,507,558↗1970Inventors: Yoshiyuki Shimizu
Sole exampleNIKON AI NIKKOR 35mm f/2— 35 mm, f/2
US 3,524,697↗1970Inventors: Masaki Isshiki, Keiji Matsuki
Figure 1NIKON FISHEYE-NIKKOR 6mm f/5.6— 9 elements / 6 groups, f ≈ 6.00 mm
US 3,549,241 A↗1970Inventors: Ikuo Mori
Example 2NIKON NEW NIKKOR 20mm f/4— 11 ELEMENTS / 9 GROUPS, f ≈ 20.0 mm
US 3,560,079↗1971Inventors: Zenji Wakimoto, Yoshiyuki Shimizu
Example 1NIKON NIKKOR-S AUTO 50mm f/1.4— 7 ELEMENTS / 5 GROUPS, f ≈ 50.0 mm
US 3,576,360↗1971Inventors: Yoshiyuki Shimizu
Embodiment 1NIKON AI NIKKOR 35mm f/1.4 S— 9 elements / 7 groups, 35.0 mm design EFL
US 3,615,125↗1971Inventors: Takashi Higuchi, Soichi Nakamura
Example 1NIKON ZOOM-NIKKOR AUTO 80-200mm f/4.5— 15 elements / 10 groups, computed f = 80.009–200.341 mm
US 3,632,190↗1972Inventors: Yoshiyuki Shimizu
Example 1NIKON REFLEX-NIKKOR·C 500mm f/8— 500 mm nominal focal length, f/8 marketed, F/7 geometric prescription
US 3,635,546↗1972Inventors: Ikuo Mori
Example 2NIKON NIKKOR AUTO 28mm f/2.8— 7 ELEMENTS / 7 GROUPS, DESIGN EFL ≈ 27.998 mm
US 3,736,049↗1973Inventors: Yoshiyuki Shimizu
Sole exampleNIKON NIKKOR-N AUTO 28mm f/2— 9 ELEMENTS / 8 GROUPS, f ≈ 27.8 mm (design)
US 3,737,214↗1973Inventors: Yoshiyuki Shimizu
Example INIKON FISHEYE-NIKKOR 6mm f/2.8— 12 elements / 9 groups, 6 mm circular fisheye
US 3,743,384↗1973Inventors: Soichi Nakamura
Example INIKON AI ZOOM-NIKKOR 360-1200mm f/11 ED— 20 elements / 12 groups, 360-1200 mm
US 3,771,853 A↗1973Inventors: Soichi Nakamura
Embodiment IIINIKON ZOOM-NIKKOR 28-45mm f/4.5— 11 ELEMENTS / 7 GROUPS, 28.85-44.19 mm PATENT DESIGN
US 3,774,991↗1973Inventors: Yoshiyuki Shimizu
Example INIKON NIKKOR 300mm f/4.5 ED— 6 ELEMENTS / 4 GROUPS, f = 300.0 mmExample IINIKON NIKKOR 600mm f/5.6 ED— 5 ELEMENTS / 4 GROUPS, 600mm f/5.6Example IIINIKON NIKKOR 800mm f/8 ED— 5 ELEMENTS / 4 GROUPS, f = 800.095 mm (d-line model)
US 3,874,770 A↗1975Inventors: Yoshiyuki Shimizu
Example INIKON NEW NIKKOR 35mm f/2.8— 6 ELEMENTS / 6 GROUPS, MODELED EFL 35.001 mm
US 4,057,330↗1977Inventors: Sei Matsui
Example 2NIKON AI NIKKOR 135mm f/2.8— 5 elements / 4 groups, f/2.8–f/32 · 7 blades
US 4,062,630↗1977Inventors: Sei Matsui
Example VNIKON AI NIKKOR 135mm f/2— 6 elements / 4 groups, Ai / Ai-S Nikkor 135mm f/2 (1977–2005)
US 4,099,850↗1978Inventors: Sei Matsui
Example 5NIKON AI NIKKOR 28mm f/3.5— 6 elements / 6 groups, f ≈ 28.00 mm
US 4,163,603↗1979Inventors: Teruyoshi Tsunashima
Embodiment IIINIKON AI NIKKOR 24mm f/2— 11 elements / 10 groups, f ≈ 24.0 mm
US 4,176,913 A↗1979Inventors: Soichi Nakamura, Kiyoshi Hayashi
Example 2NIKON AI NIKKOR 200mm f/2 S IF-ED— 10 ELEMENTS / 8 GROUPS, f = 200 mm
US 4,176,915↗1979Inventors: Ikuo Mori
Example 1NIKON NIKKOR-SW 90mm f/4.5— 7 ELEMENTS / 4 GROUPS, f ≈ 90.4 mm
US 4,189,212↗1980Inventors: Norio Mizutani, Soichi Nakamura
Example 8NIKON AI ZOOM-NIKKOR 25-50mm f/4— 25-50 mm f/4, 11 elements / 10 groups
US 4,189,213 A↗1980Inventors: Yutaka Iizuka
Example 3NIKON AI ZOOM-NIKKOR 50-300mm f/4.5 ED— 15 ELEMENTS / 5 PATENT GROUPS, 50-300mm
US 4,203,653↗1980Inventors: Ikuo Mori
Embodiment 1NIKON LW-NIKKOR 28mm f/2.8— 5 ELEMENTS / 5 GROUPS, f ≈ 28.0 mm
US 4,223,981↗1980Inventors: Norio Mizutani, Yoshinari Hamanishi
Embodiment 1NIKON AI ZOOM-NIKKOR 80-200mm f/4.5— 12 ELEMENTS / 9 GROUPS, COMPUTED EFL 80.102-199.912 mm
US 4,234,242 A↗1980Inventors: Soichi Nakamura
Example 3NIKON AI NIKKOR 50mm f/1.8 S— 6 ELEMENTS / 5 GROUPS, 50 mm
US 4,260,223 A↗1981Inventors: Yoshinari Hamanishi
Embodiment 1NIKON AI MICRO-NIKKOR 55mm f/2.8— 6 ELEMENTS / 5 GROUPS, 55mm
US 4,266,860↗1981Inventors: Kiyoshi Hayashi
Embodiment 2NIKON AI-S ZOOM-NIKKOR 35-70mm f/3.5— 10 elements / 9 groups, f = 36.02–68.79 mm design; marketed 35–70 mm
US 4,303,314↗1981Inventors: Sei Matsui
Embodiment 1NIKON SERIES E 100mm f/2.8— 4 elements / 4 groups, f = 100.02 mmEmbodiment 3NIKON SERIES E 135mm f/2.8— 4 ELEMENTS / 4 GROUPS, f ≈ 135.1 mm
US 4,338,001↗1982Inventors: Sei Matsui
Embodiment 2NIKON AI NIKKOR 180mm f/2.8 ED— 5 elements / 5 groups, f = 180.00 mm, scaled from patent f = 100
US 4,392,724↗1983Inventors: Yoshinari Hamanishi
Example 1NIKON AI MICRO-NIKKOR 105mm f/2.8 S— 10 elements / 9 groups, f = 105.003 mm
US 4,396,256 A↗1983Inventors: Daijiro Fujie
Embodiment 1NIKON AI NIKKOR 85mm f/1.4 S— 7 ELEMENTS / 5 GROUPS, f ≈ 85.0 mm
US 4,398,807 A↗1983Inventors: Yutaka Iizuka
Sole exampleNIKON SERIES E ZOOM 75-150mm f/3.5— 12 ELEMENTS / 9 GROUPS, DESIGN f = 75.02-150.09 mm
US 4,437,733↗1984Inventors: Tomowaki Takahashi, Kunio Konno, Toshihiro Sasaya
Embodiment 1NIKON TV-NIKKOR 11.5-69mm f/1.2 (Nikon S-100)— 15 GLASS BODIES / 11 AIR-SPACED GROUPS, 5 PATENT LENS GROUPS + PRISM
US 4,437,734 A↗1984Inventors: Yutaka Iizuka
Example 1NIKON MEDICAL-NIKKOR 120mm f/4 IF— 9 ELEMENTS / 6 GROUPS, 120mm f/4 (MARKETING)
US 4,452,513↗1984Inventors: Yoshinari Hamanishi
Embodiment 1NIKON AI ZOOM-NIKKOR 80-200mm f/4— 13 ELEMENTS / 9 GROUPS, 80-200mm f/4 (MARKETED)
US 4,452,513 A↗1984Inventors: Yoshinari Hamanishi
Example 3NIKON ZOOM-NIKKOR 200-400mm f/4 ED— 15 ELEMENTS / 10 GROUPS, 200-400mm
US 4,457,596↗1984Inventors: Koichi Wakamiya
Embodiment 1NIKON 35mm f/2.8 (Nikon L35AF)— 5 ELEMENTS / 4 GROUPS, f ≈ 35.0 mm
US 4,497,547↗1985Inventors: Kiyoshi Hayashi
Embodiment 1NIKON AI ZOOM-NIKKOR 50-135mm f/3.5 S— 16 elements / 13 groups, 51.35-131.5 mm design EFL
US 4,621,909↗1986Inventors: Yoshinari Hamanishi
Embodiment 3NIKON AI-S NIKKOR 50mm f/1.2— 7 elements / 6 groups, f = 51.6 mm design / 50 mm nominal
US 4,641,928 A↗1987Inventors: Yoshinari Hamanishi
Example 2NIKON ZOOM-NIKKOR 100-300mm f/5.6— 14 ELEMENTS / 10 GROUPS, 100-300mm f/5.6 (marketed)
US 4,666,259 A↗1987Inventors: Yutaka Iizuka
Embodiment 1NIKON REFLEX-NIKKOR 500mm f/8 (New)— 6 elements / 6 groups, f = 499.482 mm
US 4,690,517↗1987Inventors: Daijiro Fujie
Embodiment 1NIKON AF NIKKOR 20mm f/2.8 D— 20mm, f/2.8
US 4,699,475↗1987Inventors: Tomowaki Takahashi, Yasuhiro Aono
Embodiment 7NIKON AI ZOOM-NIKKOR 35-105mm f/3.5-4.5 S— 16 elements / 12 groups, 35–105 mm
US 4,732,459 A↗1988Inventors: Kiyoshi Hayashi
Example 4NIKON AI NIKKOR 300mm f/2 S IF-ED— 11 ELEMENTS / 8 GROUPS, f = 300.0007 mm
US 4,770,511↗1988Inventors: Yasuo Yonezawa, Yasuhiro Aono, Tomowaki Takahashi
Example 2NIKON AI ZOOM-NIKKOR 35-200mm f/3.5-4.5 S— 17 elements / 13 groups, f = 36.23-194.85 mm computed
Nittoh Inc.(2)US 2020/0192060 A1↗2020Inventors: Akira Sawamoto
Example 2HASSELBLAD XCD 120mm f/3.5 Macro— 10 ELEMENTS / 7 GROUPS, f = 120.0 mm
US 2020/0319427 A1↗2020Inventors: Takuya Yazaki
Example 1HASSELBLAD XCD 65mm f/2.8— 10 ELEMENTS / 6 GROUPS, f ≈ 65.0 mm
Olympus Corporation(3)US 6,927,926 B2↗2005Inventors: Takashi Kasahara, Masahiro Imamura
Example 3OLYMPUS ZUIKO DIGITAL ED 300mm f/2.8— 12 POWERED ELEMENTS / 10 AIR-SPACED GROUPS, DESIGN f ≈ 299.996 mm
US 7,408,719 B2↗2008Inventors: Takeshi Hosoya
Example 1OLYMPUS ZUIKO DIGITAL ED 150mm f/2.0— 11 elements / 9 groups, f = 149.50 mm patent EFL
US 10,073,255 B2↗2018Inventors: Masaru Morooka, Kenichi Nagasawa
Example 4OLYMPUS M.ZUIKO DIGITAL ED 17mm f/1.2 PRO— 15 ELEMENTS / 11 GROUPS, DESIGN f = 16.67 mm
Olympus Imaging Corporation(7)US 7,583,450 B2↗2009Inventors: Atsujiro Ishii
Example 4OLYMPUS ZUIKO DIGITAL ED 12-60mm f/2.8-4.0 SWD— 12-60mm Four Thirds standard zoom, Patent f = 12.33 / 26.62 / 58.81mm
US 8,081,392 B2↗2011Inventors: Atsujiro Ishii, Yoshiaki Shimizu
Example 3OLYMPUS ZUIKO DIGITAL ED 14-35mm f/2.0 SWD— 18 elements / 17 groups, 14–35 mm f/2.0 marketed; 14.22–34.28 mm patent
US 8,248,716 B2↗2012Inventors: Kazuteru Kawamura, Keitaro Yokoyama
Numerical Example 1OLYMPUS M.ZUIKO DIGITAL ED 12mm f/2.0— 11 elements / 8 production groups (9 patent groups), f = 12.187 mm design
US 8,755,132 B2↗2014Inventors: Yasuharu Yamada, Hirohiko Kimata
Example 1OLYMPUS M.ZUIKO DIGITAL 17mm f/2.8— 6 elements / 4 groups, f = 17 mm (design 17.30 mm)
US 8,994,842 B2↗2015Inventors: Toshio Takahashi, Hiroshi Kodama, Kento Hara, Kazumi Ito
Example 1OLYMPUS M.ZUIKO DIGITAL 14-42mm f/3.5-5.6 II R— 8 elements / 7 groups, 14-42mm f/3.5-5.6
US 2014/0139720 A1↗2014Inventors: Yasuji Ogata, Yasuharu Yamada, Akiyoshi Tochigi, Keitaro Yokoyama
Example 5OLYMPUS M.ZUIKO DIGITAL ED 12-40mm f/2.8 PRO— 14 ELEMENTS / 9 GROUPS, f = 12.25–39.10 mm
US 2015/0168697 A1↗2015Inventors: Yasuji Ogata
Example 4OLYMPUS M.ZUIKO DIGITAL ED 40-150mm f/2.8 PRO— 16 ELEMENTS / 10 GROUPS, f = 40.81–147.00 mm (3.60×)
Olympus Optical Co., Ltd.(22)US 3,743,387↗1973Inventors: Jihei Nakagawa
Sole exampleOLYMPUS G.ZUIKO AUTO-S 55mm f/1.2— 7 ELEMENTS / 6 GROUPS, f ≈ 55.0 mm
US 3,804,494↗1974Inventors: Keiichi Ito
Example 1OLYMPUS F.ZUIKO AUTO-T 200mm f/5— 6 elements / 5 groups, f ≈ 200.02 mm
US 3,827,781↗1974Inventors: Yoshitsugi Ikeda
Sole exampleOLYMPUS ZUIKO AUTO-T 600mm f/6.5— 6 ELEMENTS / 4 GROUPS, DESIGN f = 600.0 mm
US 3,830,559↗1974Inventors: Masaki Matsubara
Example 1OLYMPUS J.ZUIKO AUTO-W 24mm f/2— 10 ELEMENTS / 8 GROUPS, f ≈ 24.0 mm
US 3,838,911↗1974Inventors: Yoshitsugi Ikeda
Embodiment 1OLYMPUS E.ZUIKO AUTO-T 135mm f/3.5— 5 ELEMENTS / 4 GROUPS, f ≈ 135.0 mm
US 3,850,509↗1974Inventors: Jihei Nakagawa
Example 1OLYMPUS ZUIKO AUTO-FISHEYE 16mm f/3.5— 11 ELEMENTS / 8 GROUPS, f ≈ 16.0 mm
US 3,862,794 A↗1975Inventors: Toru Fujii
Embodiment 2OLYMPUS ZUIKO AUTO-W 28mm f/2— 9 ELEMENTS / 8 GROUPS, f = 28.000 mm
US 3,884,556↗1975Inventors: Jihei Nakagawa
Embodiment 3OLYMPUS G.ZUIKO AUTO-W 21mm f/3.5— 7 ELEMENTS / 7 GROUPS, f ≈ 21.00 mmEmbodiment 4OLYMPUS H.ZUIKO AUTO-W 24mm f/2.8— 8 ELEMENTS / 7 GROUPS, f = 23.999 mm
US 3,994,574↗1976Inventors: Jihei Nakagawa
Embodiment 2OLYMPUS H.ZUIKO AUTO-W 24mm f/2.8 (US 3,994,574 Design)— 8 ELEMENTS / 7 GROUPS, f = 23.99995 mm
US 4,025,167↗1977Inventors: Yoshitsugi Ikeda
Embodiment 2OLYMPUS ZUIKO AUTO-ZOOM 85-250mm f/5— 15 elements / 11 groups, 85-250mm
US 4,029,397↗1977Inventors: Nobuo Yamashita
Embodiment 1OLYMPUS ZUIKO AUTO-W 18mm f/3.5— 11 ELEMENTS / 9 GROUPS, 18.03 mm PARAXIAL EFL
US 4,063,802↗1977Inventors: Toshihiro Imai, Yoshitsugi Ikeda
Embodiment 1OLYMPUS ZUIKO AUTO-T 85mm f/2— 5 ELEMENTS / 4 GROUPS, f ≈ 85.0 mm
US 4,094,588↗1978Inventors: Jihei Nakagawa
Example 1OLYMPUS G.ZUIKO AUTO-S 50mm f/1.4— 7 ELEMENTS / 6 GROUPS, f ≈ 50.0 mm
US 4,099,843↗1978Inventors: Toshihiro Imai
Embodiment 6OLYMPUS ZUIKO AUTO-S 50mm f/1.2— 7 ELEMENTS / 6 GROUPS, f ≈ 50.0 mm
US 4,153,338 A↗1979Inventors: Toru Fujii
Embodiment 3OLYMPUS ZUIKO MC AUTO-ZOOM 35-70mm f/3.6— 10 ELEMENTS / 8 GROUPS, DESIGN f = 35–66.1 mm (SCALED)
US 4,210,388↗1980Inventors: Yoshitsugi Ikeda
Sole exampleOLYMPUS ZUIKO AUTO-W 21mm f/2— 11 ELEMENTS / 9 GROUPS, f ≈ 21 mm (marketed) / 28.5 mm (computed)
US 4,235,521↗1980Inventors: Toshihiro Imai
Embodiment 1OLYMPUS F.ZUIKO 35mm f/2.8 (Olympus XA)— 6 ELEMENTS / 5 GROUPS, f ≈ 35.0 mm
US 4,352,544↗1982Inventors: Toshihiro Imai
Sole exampleOLYMPUS ZUIKO MC AUTO-W 28mm f/2.8— 6 ELEMENTS / 6 GROUPS, DESIGN f = 28.00 mm
US 4,568,150↗1986Inventors: Kazuo Ikari, Toru Fujii
Embodiment 4OLYMPUS ZUIKO AUTO-ZOOM 65-200mm f/4— 14 elements / 11 groups, f = 66.923-194.149 mm design
US 4,708,445↗1987Inventors: Hisashi Goto
Embodiment 6OLYMPUS ZUIKO AUTO-MACRO 50mm f/2— 9 ELEMENTS / 7 GROUPS, f ≈ 50.0 mm
US 4,792,219↗1988Inventors: Shin-ichi Mihara
Embodiment 3OLYMPUS ZUIKO AUTO-MACRO 90mm f/2— 9 ELEMENTS / 9 GROUPS, f ≈ 90.0 mm
US 2003/0072086 A1↗2003Inventors: Tsutomu Uzawa, Masahiro Suzuki
Example 1OLYMPUS ZUIKO 9-36mm f/2-2.4 (Olympus E-10 / E-20)— 14 powered elements / 11 powered groups, f = 9.200-35.500 mm patent design
Panasonic Corporation(4)US 8,451,542 B2↗2013Inventors: Tsuneo Uchida, Koji Hoshi
Numerical Example 1PANASONIC LUMIX G VARIO 100-300mm f/4.0-5.6 MEGA O.I.S.— 17 ELEMENTS / 12 GROUPS, DESIGN f = 102.72–290.31 mm
US 2010/0194930 A1↗2010Inventors: Kyoichi Miyazaki, Keiichi Zaitsu
Numerical Example 1PANASONIC LUMIX G VARIO 7-14mm f/4 ASPH.— 16 elements / 12 groups, 7.2006-13.6229 mm patent EFL
US 2012/0147254 A1↗2012Inventors: Nobuyuki Adachi, Takuya Imaoka
Embodiment 4PANASONIC LUMIX G FISHEYE 8mm f/3.5— 10 ELEMENTS / 9 GROUPS, f = 7.850 mm patent / 8 mm marketed
US 2013/0148006 A1↗2013Inventors: Shunichiro Yoshinaga, Kyoichi Miyazaki, Takao Yamanaka, Keiichi Zaitsu
Embodiment 1PANASONIC LUMIX G 14mm f/2.5 II ASPH.— 6 elements / 5 groups, f = 14.5456 mm design; 14 mm nominal
Panasonic Intellectual Property Management Co., Ltd.(17)US 2015/0103211 A1↗2015Inventors: Takakazu Bito, Hiroaki Suzuki, Yoshiaki Kurioka, Yusuke Yonetani
Numerical Example 1PANASONIC LEICA DC VARIO-ELMARIT 4.5-108mm f/2.8 (Panasonic Lumix DMC-FZ300)— 14 ELEMENTS / 11 GROUPS, NORMALIZED MODEL 4.640-103.140mm
US 2015/0124127 A1↗2015Inventors: Tsutomu Iwashita, Yoshiaki Kurioka, Takehiro Nishioka
Embodiment 1PANASONIC LEICA DC VARIO-SUMMILUX 4.7-17.7mm f/1.4-2.3 (Panasonic Lumix DMC-LX7; Leica D-Lux 6)— 11 ELEMENTS / 10 GROUPS, PATENT EFL 4.8862-17.1948 mm
US 2015/0192839 A1↗2015Inventors: Kyoichi Miyazaki
Numerical Example 5PANASONIC LEICA DG NOCTICRON 42.5mm f/1.2 ASPH. POWER O.I.S.— 14 elements / 11 groups, f = 41.6508 mm patent; 42.5 mm marketed
US 2015/0268449 A1↗2015Inventors: Yoshiaki Kurioka, Takehiro Nishioka
Numerical Example 2PANASONIC LEICA DG SUMMILUX 15mm f/1.7 ASPH.— 9 ELEMENTS / 7 GROUPS, f ≈ 15.5 mm
US 2016/0054550 A1↗2016Inventors: Takakazu Bito, Hiroaki Suzuki
Example 1PANASONIC LEICA DC VARIO-SUMMILUX 10.9-34mm f/1.7-2.8 ASPH. (Panasonic Lumix LX100 / LX100 II; Leica D-Lux (Typ 109) / D-Lux 7 / D-Lux 8)— 11 ELEMENTS / 8 GROUPS, MARKETED 10.9-34mm f/1.7-2.8
US 2016/0266350 A1↗2016Inventors: Tomoko Iiyama, Masafumi Sueyoshi
Example 1LEICA SUMMILUX 28mm f/1.7 ASPH. (Leica Q, Q2, Q3)— 11 ELEMENTS / 9 GROUPS, f ≈ 27.08 mm
US 2017/0059832 A1↗2017Inventors: Shunichiro Yoshinaga
Numerical Example 4PANASONIC LUMIX G 25mm f/1.7 ASPH.— 8 elements / 7 groups, f = 25.878 mm design / 25 mm nominal
US 2018/0081156 A1↗2018Inventors: Hiroaki Suzuki, Yoshiaki Kurioka, Takehiro Nishioka, Hisayuki Ii
Numerical Example 1PANASONIC LEICA DC VARIO-ELMARIT 8.8-176mm f/2.8-4.5 ASPH. (Panasonic Lumix FZ2500 / FZ2000 / FZH1)— 16 ELEMENTS / 11 GROUPS, 5 POWERED ZOOM GROUPS
US 2020/0341238 A1↗2020Inventors: Hideki Kai
Numerical Example 3LEICA ELMARIT-TL 18mm f/2.8 ASPH.— 8 GLASS ELEMENTS / 6 GROUPS, f = 18.4556 mm design
US 2021/0055531 A1↗2021Inventors: Genki Nakazawa, Takao Yamanaka, Yoshiaki Kurioka
Embodiment 1PANASONIC LUMIX S PRO 24-70mm f/2.8— 18 ELEMENTS / 16 GROUPS, DESIGN 24.840-67.551 mm
US 2021/0132345 A1↗2021Inventors: Takehiro Nishioka, Hisayuki Ii
Embodiment 3PANASONIC LUMIX S PRO 70-200mm f/2.8 O.I.S.— 22 ELEMENTS / 17 GROUPS, MODELED f = 72.46–193.02 mm
US 2023/0367186 A1↗2023Inventors: Yuka Ikegami, Takahiro Kitada, Kunio Dohno
Numerical Example 1PANASONIC LEICA DG SUMMILUX 9mm f/1.7 ASPH.— 12 ELEMENTS / 9 GROUPS, f ≈ 9.35 mm
US 2024/0192475 A1↗2024Inventors: Takahiro Kitada
Numerical Example 1PANASONIC LUMIX S 14-28mm f/4-5.6 MACRO— 14 ELEMENTS / 10 GROUPS, DESIGN f = 14.56–26.93 mm
US 2024/0241349 A1↗2024Inventors: Takehiro Nishioka, Yoshiaki Kurioka
Numerical Example 1LEICA APO-SUMMICRON 43mm f/2 ASPH. (Leica Q3 43)— 11 ELEMENTS / 8 GROUPS, f ≈ 41.7 mm
US 2024/0329362 A1↗2024Inventors: Emiri Suzuki
Example 2HASSELBLAD XCD 25mm f/2.5 V— 13 ELEMENTS / 10 GROUPS, DESIGN f = 25.03 mm
US 2025/0334777 A1↗2025Inventors: Yoshiaki Kurioka, Kunio Dohno
Numerical Example 4PANASONIC LUMIX S 26mm f/8— 5 ELEMENTS / 5 GROUPS, DESIGN f = 24.72 mm
US 2026/0036794 A1↗2026Inventors: Emiri Suzuki, Naoto Nishimura
Numerical Example 1HASSELBLAD XCD 35-100mm f/2.8-4 E— 16 ELEMENTS / 13 GROUPS, DESIGN f = 36.05–96.99 mm
Pentax Corporation(5)US 6,560,042 B2↗2003Inventors: Masayuki Murata, Takayuki Ito
Numerical Example 3PENTAX FA 31mm f/1.8 AL Limited— 9 ELEMENTS / 7 GROUPS, f ≈ 31.8 mm
US 7,106,520 B2↗2006Inventors: Masakazu Saori
Embodiment 8PENTAX SMC DA 16-45mm f/4 ED AL— 13 ELEMENTS / 10 GROUPS, 16-45 mm f/4 MARKETING
US 7,289,274 B1↗2007Inventors: Masakazu Saori
Numerical Example 5PENTAX DA* 50-135mm f/2.8 ED [IF] SDM— 18 ELEMENTS / 14 GROUPS, f = 51.5–131.0 mm (patent) / 50–135 mm (marketing)
US 7,301,711 B2↗2007Inventors: Masakazu Saori
Numerical Example 6PENTAX DA* 16-50mm f/2.8 ED AL [IF] SDM— 15 ELEMENTS / 12 GROUPS, f = 16.48–48.50 mm (2.94×)
US 7,307,794 B2↗2007Inventors: Masakazu Saori
Example 1PENTAX SMC DA 18-55mm f/3.5-5.6 AL— 12 ELEMENTS / 9 GROUPS, 18-55mm f/3.5-5.6 (marketing)
Pentax Ricoh Imaging Company, Ltd.(3)US 8,422,143 B2↗2013Inventors: Masakazu Saori
Numerical Embodiment 1PENTAX SMC D FA645 25mm f/4 AL [IF] SDM AW— 12 REFRACTIVE ELEMENTS / 7 MODELED GROUPS, f = 25.6946 mm (DESIGN)
US 8,824,059 B2↗2014Inventors: Koji Kato, Masakazu Saori
Example 1PENTAX-02 STANDARD ZOOM 5-15mm f/2.8-4.5— 8 ELEMENTS / 7 PHYSICAL GROUPS, MARKETED 5-15mm f/2.8-4.5
US 2013/0222925 A1↗2013Inventors: Tatsuyuki Onozaki, Masakazu Saori
Numerical Embodiment 4PENTAX HD D FA645 MACRO 90mm f/2.8 ED AW SR— 11 ELEMENTS / 9 GROUPS, f = 90.116 mm (DESIGN)
Ponder & Best, Inc.(2)US 3,942,876↗1976Inventors: Ellis I. Betensky
Table IVVIVITAR SERIES 1 200mm f/3 VMC— 6 elements / 6 groups, Sonnar-type telephoto with fixed rear corrector
US 3,975,089↗1976Inventors: Ellis I. Betensky
Sole exampleVIVITAR SERIES 1 35-85mm f/2.8 VMC— 12 ELEMENTS / 9 GROUPS, f ≈ 38.5–89.1 mm (patent: 36–83 mm)
Ricoh Co., Ltd.(8)US 5,760,973↗1998Inventors: Atsushi Kawamura
Example 1RICOH GR LENS 28mm f/2.8 (Ricoh GR1)— 7 ELEMENTS / 4 GROUPS, f ≈ 28.1 mm
US 2012/0307375 A1↗2012Inventors: Yohei Takano, Hiromichi Atsuumi
Embodiment 3RICOH LENS A16 24-85mm f/3.5-5.5 (Ricoh GXR A16)— 11 ELEMENTS / 9 GROUPS, 15.7-55.5 mm actual (24-85 mm equivalent)
US 2013/0321936 A1↗2013Inventors: Kazuyasu Ohashi
Example 3RICOH GR LENS 18.3mm f/2.8 (Ricoh GR / GR II)— 7 ELEMENTS / 5 GROUPS, f ≈ 18.3 mm
US 2018/0164556 A1↗2018Inventors: Takahiko Ohishi
Numerical Example 1PENTAX HD DA* 11-18mm f/2.8 ED DC AW— 16 ELEMENTS / 11 GROUPS, 11–18 mm MARKETING / 11.25–17.70 mm DESIGN
US 2019/0154946 A1↗2019Inventors: Kazuyasu Ohashi
Example 5RICOH GR LENS 18.3mm f/2.8 (Ricoh GR III)— 6 ELEMENTS / 4 GROUPS, f = 18.28 mm  (28 mm equiv.)
US 2019/0250367 A1↗2019Inventors: Minoru Murayama
Example 1PENTAX HD D FA* 50mm f/1.4 SDM AW— 15 elements / 9 groups, f = 49.57 mm design
US 2020/0301101 A1↗2020Inventors: Yoichi Nomura
Numerical Example 3PENTAX HD D FA* 85mm f/1.4 ED SDM AW— 12 elements / 10 groups, f = 83.41 mm design; 85 mm marketed
US 2022/0026670 A1↗2022Inventors: Kazuyasu Ohashi
Example 3RICOH GR LENS 26.1mm f/2.8 (Ricoh GR IIIx)— 7 ELEMENTS / 5 GROUPS, f = 26.05 mm
Ricoh Imaging Company, Ltd.(4)US 9,784,950 B2↗2017Inventors: Masakazu Saori, Yoshimitsu Ohara
Example 1PENTAX-06 TELEPHOTO ZOOM 15-45mm f/2.8— 14 ELEMENTS / 10 GROUPS, MARKETED 15-45mm f/2.8
US 2016/0103303 A1↗2016Inventors: Masakazu Saori
Numerical Embodiment 1PENTAX HD D FA* 70-200mm f/2.8 ED DC AW— 19 ELEMENTS / 15 GROUPS (PATENT), 19 ELEMENTS / 16 GROUPS (MARKETED)
US 2016/0327774 A1↗2016Inventors: Minoru Murayama
Numerical Embodiment 1PENTAX HD D FA 150-450mm f/4.5-5.6 ED DC AW— Marketed 150–450mm f/4.5–5.6, Design f = 153.50–440.00 mm
US 2017/0068075 A1↗2017Inventors: Tatsuyuki Onozaki
Numerical Embodiment 2PENTAX HD D FA 28-105mm f/3.5-5.6 ED DC WR— 15 ELEMENTS / 11 GROUPS, PATENT f = 28.70–102.38 mm
Samsung Digital Imaging Co., Ltd.(1)US 2010/0149663 A1↗2010Inventors: Min Heu
Embodiment 1SAMSUNG 30mm f/2— 5 ELEMENTS / 5 GROUPS, DESIGN f = 30.756 mm
Samsung Electro-Mechanics Co., Ltd.(1)US 2021/0149156 A1↗2021Inventors: Jae Hyuk Huh, Jae Hyun Baik, Yong Joo Jo
Example 1SAMSUNG 4.3mm f/1.5 (Samsung Galaxy S9)— 7 ELEMENTS / 7 GROUPS, 4.3 mm NOMINAL
Samsung Electronics Co., Ltd.(2)US 2012/0056976 A1↗2012Inventors: Yong-jae Lee, Young-woo Park
Embodiment 1SAMSUNG 20mm f/2.8— 6 ELEMENTS / 4 GROUPS, 20.2898 mm MODELED EFL
US 2013/0314588 A1↗2013Inventors: Yong-su Kim
Embodiment 1SAMSUNG 45mm f/1.8— 7 ELEMENTS / 6 GROUPS, 45mm f/1.8 (MARKETED)
Samyang Optics Co., Ltd.(2)US 2024/0151940 A1↗2024Inventors: Ju Yeon Jo
Embodiment 1SAMYANG AF 24mm f/1.8 FE— 11 ELEMENTS / 8 GROUPS, 24mm f/1.8 (MARKETED)
US 2025/0231383 A1↗2025Inventors: Ju Yeon Jo
Embodiment 3SAMYANG AF 35-150mm f/2-2.8 FE / L— 21 physical elements / 18 groups, Patent EFL 35.989-146.969 mm
Sigma Corporation(2)US 2025/0334778 A1↗2025Inventors: Ryosuke Sato
Numerical Example 2SIGMA 35mm f/1.2 DG II | Art— 17 ELEMENTS / 13 GROUPS, DESIGN f = 34.60 mm
US 2026/0086332 A1↗2026Inventors: Yukihiro Yamamoto
Numerical Example 1SIGMA 135mm f/1.4 DG | Art— 17 ELEMENTS / 13 GROUPS, DESIGN f = 131.00 mm
Sony Corporation(20)US 8,553,339 B2↗2013Also assigned to: Tamron Co., Ltd.
Inventors: Hisayuki Yamanaka, Makoto Kanai, Masafumi Sueyoshi, Masaharu Hosoi
Embodiment 1SONY E 18-200mm f/3.5-6.3 OSS LE— 17 PHYSICAL LENS PIECES / 13 PATENT AIR-SPACED GROUPS, MARKETED 18-200mm f/3.5-6.3
US 9,538,088 B2↗2017Inventors: Tadashi Yanagisawa
Numerical Example 1SONY VARIO-TESSAR T* E 16-70mm f/4 ZA OSS— 16 ELEMENTS / 12 PHYSICAL GROUPS, 6 FUNCTIONAL ZOOM GROUPS
US 10,191,254 B2↗2019Inventors: Kouji Katou, Kota Omiya, Hiroshi Koizumi, Naoki Miyagawa
Numerical Example 10SONY FE 28mm f/2— 9 elements / 8 groups, f = 28.23 mm patent design
US 2007/0229969 A1↗2007Inventors: Hiroyuki Matsumoto
Example 1SONY VARIO-SONNAR T* DT 16-80mm f/3.5-4.5 ZA— 14 ELEMENTS / 10 GROUPS, MARKETED 16-80mm f/3.5-4.5
US 2008/0198475 A1↗2008Inventors: Tetsuya Arimoto, Yasushi Yamamoto
Example 3SONY VARIO-SONNAR T* 24-70mm f/2.8 ZA SSM— 17 ELEMENTS / 13 GROUPS, 24-70mm
US 2008/0218875 A1↗2008Also assigned to: Tamron Co., Ltd.
Inventors: Daisuke Kuroda, Masafumi Sueyoshi, Kazuya Watanabe
Example 1SONY ZEISS VARIO-SONNAR T* 14.3-71.5mm f/2.8-4.8 (Sony Cyber-shot DSC-R1)— 12 PHYSICAL ELEMENTS / 10 GROUPS, PATENT f = 14.71-69.8725 mm
US 2011/0273780 A1↗2011Inventors: Masaharu Hosoi, Hiroyuki Matsumoto, Masafumi Sueyoshi
Numerical Example 1SONY E 18-55mm f/3.5-5.6 OSS— 11 elements / 9 groups, 18-55mm f/3.5-5.6 marketed
US 2012/0307129 A1↗2012Inventors: Hideki Kai, Makoto Kanai
Numerical Value Embodiment 1SONY DT 16-50mm f/2.8 SSM— 16 ELEMENTS / 13 GROUPS, PATENT f = 16.48-48.50 mm
US 2013/0033768 A1↗2013Inventors: Toshihiro Sunaga, Motoyuki Ohtake, Masaharu Hosoi
Numerical Example 2SONY SONNAR T* E 24mm f/1.8 ZA— 8 ELEMENTS / 7 GROUPS, f ≈ 23.3 mm
US 2013/0314585 A1↗2013Inventors: Atsushi Oohata, Hiroki Hagiwara
Example 3SONY ZEISS VARIO-SONNAR T* 10.4-37.1mm f/1.8-4.9 (Sony Cyber-shot DSC-RX100 / DSC-RX100 II)— 7 elements / 4 groups, Patent design: 11.007-35.426 mm
US 2014/0071331 A1↗2014Inventors: Kouji Katou, Yumiko Uehara, Motoyuki Ohtake
Numerical Example 4SONY PLANAR T* 50mm f/1.4 ZA SSM— 8 ELEMENTS / 5 GROUPS, f = 51.5 mm
US 2014/0071333 A1↗2014Inventors: Fumikazu Kanetaka, Hisashi Uno
Numerical Example 4SONY ZEISS SONNAR T* 35mm f/2 (Sony DSC-RX1 family)— 8 ELEMENTS / 7 GROUPS, 4 FUNCTIONAL GROUPS
US 2014/0204265 A1↗2014Inventors: Toshihiro Sunaga
Embodiment 4SONY E 20mm f/2.8— 6 ELEMENTS / 6 GROUPS, 4 POWER GROUPS (+/−/+/−)
US 2014/0354857 A1↗2014Inventors: Takuya Kato, Atsushi Oohata, Hiroki Hagiwara
Example 7SONY ZEISS VARIO-SONNAR T* 8.8-73.3mm f/2.8 (Sony Cyber-shot DSC-RX10 / DSC-RX10 II)— 14 ELEMENTS / 11 GROUPS, f = 9.19-64.68 mm (DESIGN)
US 2015/0077859 A1↗2015Inventors: Fumikazu Kanetaka, Kodai Nagamatsu
Numerical Example 4SONY FE 28-70mm f/3.5-5.6 OSS— 28-70mm f/3.5-5.6, 9 elements / 8 groups
US 2015/0085165 A1↗2015Inventors: Masaki Maruyama, Masaharu Hosoi, Hiroshi Koizumi
Numerical Example 3SONY VARIO-TESSAR T* FE 24-70mm f/4 ZA OSS— 12 ELEMENTS / 10 GROUPS, DESIGN f = 24.72-67.90 mm
US 2015/0092100 A1↗2015Inventors: Yonghua Chen, Naoki Miyagawa
Example 1SONY SONNAR T* FE 55mm f/1.8 ZA— 7 ELEMENTS / 5 GROUPS, f ≈ 53.6 mm
US 2015/0226945 A1↗2015Inventors: Takumi Matsui, Keita Kaifu
Numerical Example 1SONY FE 70-200mm f/4 G OSS— 21 elements / 15 groups, 70–200mm f/4 marketed
US 2015/0316753 A9↗2015Inventors: Masaharu Hosoi
Example 1SONY E PZ 16-50mm f/3.5-5.6 OSS— 9 ELEMENTS / 8 GROUPS, 16-50mm f/3.5-5.6 (MARKETED)
US 2019/0018229 A1↗2019Inventors: Naoki Miyagawa, Yonghua Chen
Numerical Example 1SONY FE 70-200mm f/2.8 GM OSS— 23 ELEMENTS / 18 GROUPS, f = 72.1–194.0 mm
Tamron Co., Ltd.(16)US 6,437,923 B1↗2002Inventors: Yasuharu Yamada
Example 1TAMRON AF 28-200mm f/3.8-5.6 Super XR Aspherical [IF] MACRO— 28-200mm marketing / 29.07-193.0mm patent design, 15 PHYSICAL LENS PIECES / 14 GROUPS
US 7,075,731 B1↗2006Inventors: Yasuharu Yamada
Sole exampleTAMRON SP AF 28-75mm f/2.8 XR Di LD Aspherical [IF] MACRO— 16 ELEMENTS / 14 GROUPS, DESIGN f = 28.87-72.65 mm
US 8,049,968 B2↗2011Inventors: Hisayuki Yamanaka, Dayong Li
Embodiment 6SONY 70-400mm f/4-5.6 G SSM II— 18 ELEMENTS / 12 GROUPS, PATENT 72.06-388.09mm
US 8,169,718 B2↗2012Also assigned to: Nikon Corporation
Inventors: Dayong Li, Hiroshi Yamamoto, Hiroki Harada
Embodiment 4NIKON AF-S DX NIKKOR 10-24mm f/3.5-4.5 G ED— 14 PHYSICAL ELEMENTS / 9 GROUPS, 16 MODELED REFRACTIVE MEDIA ENTRIES
US 8,228,605 B2↗2012Inventors: Akio Arakawa, Lai Wei
Example 2TAMRON SP 70-300mm f/4-5.6 Di VC USD— 17 ELEMENTS / 12 GROUPS, DESIGN 71.75–292.00mm
US 8,553,339 B2↗2013Also assigned to: Sony Corporation
Inventors: Hisayuki Yamanaka, Makoto Kanai, Masafumi Sueyoshi, Masaharu Hosoi
Embodiment 1SONY E 18-200mm f/3.5-6.3 OSS LE— 17 PHYSICAL LENS PIECES / 13 PATENT AIR-SPACED GROUPS, MARKETED 18-200mm f/3.5-6.3
US 8,810,918 B2↗2014Inventors: Dayong Li
Example 4TAMRON SP 24-70mm f/2.8 Di VC USD— 17 physical elements / 12 groups (18 modeled media), 24.7-67.799 mm design / 24-70 mm marketed
US 8,867,144 B2↗2014Inventors: Hisayuki Yamanaka
Example 1TAMRON SP 70-200mm f/2.8 Di VC USD— 23 ELEMENTS / 17 GROUPS, 70-200mm f/2.8 (MARKETING)
US 9,063,253 B2↗2015Inventors: Nobuyuki Adachi
Embodiment 7TAMRON SP 90mm f/2.8 Di MACRO 1:1 VC USD (F004)— 14 ELEMENTS / 11 GROUPS, f = 92.556 mm (COMPUTED)
US 10,545,321 B2↗2020Inventors: Yoshito Iwasawa, Jun Takahashi
Example 4TAMRON SP 150-600mm f/5-6.3 Di VC USD (A011)— 20 ELEMENTS / 13 GROUPS, PATENT ZOOM POINTS 152.1633-582.5200 mm
US 2003/0156333 A1↗2003Inventors: Yasuharu Yamada
Sole exampleTAMRON AF 28-300mm f/3.5-6.3 XR Di LD Aspherical [IF] MACRO— 28-300mm marketed / 28.9958-289.5284mm modeled, f/3.5-6.3 marketed / f/3.50-6.50 patent wide-open
US 2008/0212200 A1↗2008Inventors: Dayong Li, Akio Arakawa
Example 1TAMRON SP AF 70-200mm f/2.8 Di LD [IF] MACRO— 18 ELEMENTS / 13 GROUPS, 70-200mm f/2.8 (MARKETING)
US 2008/0218875 A1↗2008Also assigned to: Sony Corporation
Inventors: Daisuke Kuroda, Masafumi Sueyoshi, Kazuya Watanabe
Example 1SONY ZEISS VARIO-SONNAR T* 14.3-71.5mm f/2.8-4.8 (Sony Cyber-shot DSC-R1)— 12 PHYSICAL ELEMENTS / 10 GROUPS, PATENT f = 14.71-69.8725 mm
US 2011/0286116 A1↗2011Inventors: Kaori Shimizu, Hisayuki Yamanaka
Embodiment 1TAMRON SP AF 60mm f/2 Di II LD [IF] MACRO 1:1 (G005)— 14 ELEMENTS / 10 GROUPS, 60mm f/2 (MARKETED)
US 2014/0347522 A1↗2014Inventors: Yoshito Iwasawa
Example 3TAMRON 14-150mm f/3.5-5.8 Di III (C001)— 17 ELEMENTS / 13 GROUPS, PATENT 14.43-145.40 mm
US 2024/0295723 A1↗2024Inventors: Takahiko Sakai
Example 1TAMRON 50-300mm f/4.5-6.3 Di III VC VXD— 19 ELEMENTS / 14 GROUPS, PATENT f = 51.509-290.867 mm
VEB Carl Zeiss Jena(1)US 2,968,221↗1961Inventors: Harry Zöllner
Example ICARL ZEISS JENA BIOMETAR 80mm f/2.8— 5 ELEMENTS / 4 GROUPS, f = 80.61 mm (0.8× scaled)Example IICARL ZEISS JENA BIOMETAR 120mm f/2.8— 5 ELEMENTS / 4 GROUPS, f = 119.232 mm (design)
Vivitar Corporation(2)US 4,523,816↗1985Inventors: Melvyn H. Kreitzer
Table IVVIVITAR SERIES 1 450mm f/4.5 VMC ASPHERICAL MIRROR— 10 POWERED COMPONENTS / 7 GROUPS, f = 437.4 mm (PATENT)
US 4,758,073↗1988Inventors: Jacob Moskovich
Example 4VIVITAR SERIES 1 70-210mm f/2.8-4 VMC— 14 ELEMENTS / 10 GROUPS, f = 72.1–203.8 mm
Voigtländer & Sohn AG(6)US 2,573,511 A↗1951Inventors: Albrecht Wilhelm Tronnier
Sole exampleVOIGTLÄNDER COLOR-SKOPAR 105mm f/3.5 (Voigtländer Bessa II)— 4 ELEMENTS / 3 GROUPS, f = 104.999mm
US 2,627,204 A↗1953Inventors: Albrecht Wilhelm Tronnier
Example IIVOIGTLÄNDER ULTRON 50mm f/2— 6 ELEMENTS / 5 GROUPS, f ≈ 50.0 mm
US 2,645,154↗1953Inventors: Albrecht Wilhelm Tronnier
Sole exampleVOIGTLÄNDER APO-LANTHAR 210mm f/4.5— 5 ELEMENTS / 3 GROUPS, 210mm f/4.5 (PRODUCTION)
US 2,645,156 A↗1953Inventors: Albrecht Wilhelm Tronnier
Sole exampleVOIGTLÄNDER COLOR-HELIAR 105mm f/3.5 (Voigtländer Bessa II)— 5 ELEMENTS / 3 GROUPS, f = 104.999 mm (MODELED)
US 2,646,721 A↗1953Inventors: Albrecht Wilhelm Tronnier
Sole exampleVOIGTLÄNDER NOKTON 50mm f/1.5— 7 ELEMENTS / 5 GROUPS, f = 49.9999 mm (DESIGN)
US 716,035↗1902Inventors: Carl August Hans Harting
Sole exampleVOIGTLÄNDER HELIAR (Symmetric) f/4— 5 ELEMENTS / 3 GROUPS, f = 100 (normalized)
Voigtländer AG(3)US 2,662,446 A↗1953Inventors: Albrecht Wilhelm Tronnier
Sole exampleVOIGTLÄNDER TELOMAR 100mm f/5.5— 5 ELEMENTS / 4 GROUPS, DESIGN f = 101.259 mm
US 2,927,506↗1960Inventors: Fritz Determann
Example 1VOIGTLÄNDER SKOPAREX 35mm f/3.4 (Bessamatic)— 6 ELEMENTS / 5 GROUPS, 35mm f/3.4
US 3,388,956 A↗1968Inventors: Joachim Eggert, Ernst Tronnier, Fritz Ueberhagen
Example 1VOIGTLÄNDER SUPER-DYNAREX 200mm f/4 (Bessamatic)— 5 ELEMENTS / 4 GROUPS, 200mm f/4
Yashica Co., Ltd.(1)US 3,856,386 A↗1974Inventors: Yoshisato Fujioka
Example 1YASHICA AUTO YASHINON-DS 20mm f/3.3— 11 ELEMENTS / 9 GROUPS, DESIGN f = 20.00 mm
Zeiss Ikon AG(4)US 1,975,678↗1934Inventors: Ludwig Bertele
Sole exampleCARL ZEISS JENA SONNAR 50mm f/1.5— 7 ELEMENTS / 3 GROUPS, f ≈ 50.2 mm
US 1,998,704↗1935Inventors: Ludwig Bertele
Example ICARL ZEISS JENA SONNAR 50mm f/2— 6 ELEMENTS / 3 GROUPS, f ≈ 50.0 mm (scaled from 100mm patent)
US 2,084,309↗1937Inventors: Ludwig Bertele
Sole exampleCARL ZEISS JENA BIOGON 35mm f/2.8 (pre-war)— 7 elements / 4 groups, f = 35.0 mm
US 2,186,621↗1940Inventors: Ludwig Bertele
Figure 1CARL ZEISS JENA SONNAR 50mm f/1.5 (US 2,186,621 Design)— 7 ELEMENTS / 3 GROUPS, DESIGN f = 100 (NORMALIZED; SCALED 0.5× TO 50 mm)
No named assignee or applicant(7)US 1,882,530 A↗1932Inventors: Albrecht Wilhelm Tronnier
Sole exampleSCHNEIDER-KREUZNACH ANGULON 210mm f/6.8— 6 ELEMENTS / 2 GROUPS, MODEL EFL 210.021 mm
US 2,516,724 A↗1950Inventors: Michael Michaelovitch Roossinov
Example IRUSSAR-21 60mm f/18— 6 ELEMENTS / 4 GROUPS, f = 59.426 mmExample IIRUSSAR-22 70mm f/8— 6 ELEMENTS / 4 GROUPS, f = 69.883 mm
US 2,721,499↗1955Inventors: Ludwig Bertele
Example 2CARL ZEISS BIOGON 21mm f/4.5— 8 ELEMENTS / 5 GROUPS, f = 21.0 mm (design)
US 2,721,501↗1955Inventors: Ludwig Bertele
Sole exampleSCHACHT TRAVENAR 90mm f/2.8— 4 ELEMENTS / 3 GROUPS, f = 90.012 mm (modeled)
US 3,622,227↗1971Inventors: Yoshiyuki Shimizu
Example INIKON NIKKOR-N AUTO 24mm f/2.8— 9 ELEMENTS / 7 GROUPS, f ≈ 24.0 mm
US 4,726,669↗1988Inventors: Pierre Angénieux
Example 1P. ANGÉNIEUX DEM 180mm f/2.3 APO— 8 ELEMENTS / 6 GROUPS, f = 179.927 mm (DESIGN)
US 765,006 A↗1904Inventors: Carl August Hans Harting
Sole exampleVOIGTLÄNDER DYNAR 100mm f/6— 5 ELEMENTS / 3 GROUPS, PATENT NORMALIZATION fD = 100