Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5245375 | Finder optical system | — | 1993-09-14 |
| 5233475 | Rectangular prism including a V-shaped groove at a boundary | — | 1993-08-03 |
| 5220458 | Keplerian zoomfinder optical system | — | 1993-06-15 |
| 5161065 | Behind stop wide angle lens system | — | 1992-11-03 |
| 5144480 | Keplerian zoom finder optical system | — | 1992-09-01 |
| 5132838 | Keplerian zoom finder optical system | — | 1992-07-21 |
| 5113288 | Behind stop wide angle lens system | — | 1992-05-12 |
| 5082360 | Compound zoom lens | Susumu Sato, Koichi Wakamiya | 1992-01-21 |
| 5061054 | Keplerian finder optical system | — | 1991-10-29 |
| 5050971 | Variable focal length photo-taking optical system | Susumu Sato, Koichi Wakamiya | 1991-09-24 |
| 5005955 | Keplerian zoom finder optical system | — | 1991-04-09 |
| 4900141 | Rear conversion lens | — | 1990-02-13 |
| 4856880 | Photo-taking lens for an underwater camera | — | 1989-08-15 |