Yoichi Nomura — Lens Patent Author | Surface & Stop

Yoichi Nomura2 related patents across 2 interactive lens diagrams.
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Ricoh Co., Ltd. (1)
Ricoh Imaging Company, Ltd. (1)
Ricoh Co., Ltd.(1)US 2020/0301101 A1↗2020Assignee: Ricoh Co., Ltd.
Inventors: Yoichi Nomura
PENTAX HD D FA* 85mm f/1.4 ED SDM AW— 12 elements / 10 groups, f = 83.41 mm design; 85 mm marketed
Ricoh Imaging Company, Ltd.(1)JP 2016-114800 A↗2016Assignee: Ricoh Imaging Company, Ltd.
Inventors: Yoichi Nomura
HD PENTAX-DA 16-85mm f/3.5-5.6 ED DC WR— 16 ELEMENTS / 12 GROUPS, 16-85mm f/3.5-5.6 (marketing)