Masashi Yamashita — Lens Patent Author | Surface & Stop

Masashi Yamashita10 related patents across 10 interactive lens diagrams.
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Nikon Corporation (10)
Nikon Corporation(10)JP 2013-250293 A↗2013Assignee: Nikon Corporation
Inventors: 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 2015-215560 A↗2015Assignee: Nikon Corporation
Inventors: Masashi Yamashita, Satoshi Miwa
Example 1NIKON AF-S NIKKOR 500mm f/4 E FL ED VR— 16 ELEMENTS / 12 GROUPS, 2 FLUORITE + 3 ED
US 2018/0031811 A1↗2018Assignee: Nikon Corporation
Inventors: 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)
WO 2019/116563 A1↗2019Assignee: Nikon Corporation
Inventors: 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↗2019Assignee: Nikon Corporation
Inventors: 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
JP 2020-177057 A↗2020Assignee: Nikon Corporation
Inventors: 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)
US 2020/0348497 A1↗2020Assignee: Nikon Corporation
Inventors: 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
JP 2021-36283 A↗2021Assignee: Nikon Corporation
Inventors: 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)
US 2021/0026133 A1↗2021Assignee: Nikon Corporation
Inventors: 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
WO 2021/039813 A1↗2021Assignee: Nikon Corporation
Inventors: 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