Yusuke Nanjo — Lens Patent Author | Surface & Stop

Yusuke Nanjo3 related patents across 3 interactive lens diagrams.
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Mamiya Koki Co., Ltd. (3)
Mamiya Koki Co., Ltd.(3)JP S52-141223 A↗1977Assignee: Mamiya Koki Co., Ltd.
Inventors: Yusuke Nanjo
Example 1MAMIYA-SEKOR SFC 150mm f/4 SOFT FOCUS— 5 ELEMENTS / 3 GROUPS, f = 150.026 mm (MODELED)
JP S54-107336 A↗1979Assignee: Mamiya Koki Co., Ltd.
Inventors: Yusuke Nanjo
Example 1MAMIYA-SEKOR C 55mm f/2.8 N— 8 ELEMENTS / 6 GROUPS, f = 54.9999 mm
JP 1981-119109 A↗1981Assignee: Mamiya Koki Co., Ltd.
Inventors: 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