Atsujiro Ishii — Lens Patent Author | Surface & Stop

Atsujiro Ishii4 related patents across 4 interactive lens diagrams.
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Olympus Corporation (1)
Olympus Imaging Corporation (2)
No named assignee or applicant (1)
Olympus Corporation(1)US 7,280,284 B2↗2007Assignee: Olympus Corporation
Inventors: Atsujiro Ishii
Example 3OLYMPUS ZUIKO DIGITAL ED 7-14mm f/4.0— 18 ELEMENTS / 12 GROUPS, DESIGN f = 7.1–13.7 mm
Olympus Imaging Corporation(2)US 7,583,450 B2↗2009Assignee: Olympus Imaging Corporation
Inventors: 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↗2011Assignee: Olympus Imaging Corporation
Inventors: 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
No named assignee or applicant(1)US 2008/0062534 A1↗2008Inventors: Atsujiro Ishii, Hirohiko Kimata
Example 1OLYMPUS ZUIKO DIGITAL ED 40-150mm f/4.0-5.6— 12 ELEMENTS / 9 GROUPS, DESIGN f = 40.9–146.7 mm