Hisashi Tokumaru — Lens Patent Author | Surface & Stop

Hisashi Tokumaru7 related patents across 7 interactive lens diagrams.
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Minolta Camera Co., Ltd. (7)
Minolta Camera Co., Ltd.(7)JP S56-150717 A↗1981Assignee: Minolta Camera Co., Ltd.
Inventors: Hisashi Tokumaru, Mitsuo Yasukuni
Example 1MINOLTA MD ZOOM 75-150mm f/4— 12 ELEMENTS / 8 GROUPS, f = 77–146 mm (design)
JP 1987-244010 A↗1987Assignee: Minolta Camera Co., Ltd.
Inventors: Naoshi Okada, Hisashi Tokumaru
Example 2MINOLTA AF 100mm f/2— 7 ELEMENTS / 6 GROUPS, 100mm f/2
JP 1988-201614 A↗1988Assignee: Minolta Camera Co., Ltd.
Inventors: Hisashi Tokumaru
Example 4MINOLTA AF 35mm f/2— 7 ELEMENTS / 6 GROUPS, 35mm MARKETING / 35.0002mm MODELED
US 4,764,000↗1988Assignee: Minolta Camera Co., Ltd.
Inventors: Hisashi Tokumaru
Embodiment 8MINOLTA AF 100mm f/2.8 Macro— 8 elements / 8 groups, f = 100.0 mm design
JP 1989-039542 A↗1989Assignee: Minolta Camera Co., Ltd.
Inventors: Hisashi Tokumaru, Masakuni Tai
Example 1MINOLTA AF 80-200mm f/2.8 APO— 16 ELEMENTS / 13 GROUPS, DESIGN 82-195mm
JP H01-193709 A↗1989Assignee: Minolta Camera Co., Ltd.
Inventors: 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
US 4,806,003↗1989Assignee: Minolta Camera Co., Ltd.
Inventors: Hiromu Mukai, Hisashi Tokumaru
Example 2MINOLTA AF 35mm f/1.4— 10 ELEMENTS / 8 GROUPS, 35mm MARKETED / 34.983 mm DESIGN