Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11768360 | Imaging lens, imaging optical device, digital device, and method of manufacturing imaging lens | Keiko Yamada, Ryosuke Imajima, Haruo Sato | 2023-09-26 |
| 5699198 | Internal focusing zoom lens system | Kiyotaka Inadome | 1997-12-16 |
| 5666230 | Zoom lens | — | 1997-09-09 |
| 5402268 | Telephoto lens system allowing short-distance photographing operation | — | 1995-03-28 |
| 5315441 | Inverse telephoto large aperture wide angle lens | Kenji Hori | 1994-05-24 |
| 5276553 | Ultra wide angle zoom lens | — | 1994-01-04 |
| 4950055 | Retrofocus type wide angle lens | — | 1990-08-21 |