Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5559638 | Wide-angle lens system #6 | Norihiko Aoki, Masashi Hankawa | 1996-09-24 |
| 5442485 | Zoom lens system | — | 1995-08-15 |
| 5416639 | Zoom lens system | — | 1995-05-16 |
| 5331463 | Wide angle zoom lens system | — | 1994-07-19 |
| 5241420 | Zoom lens system | — | 1993-08-31 |
| 5194991 | Zoom lens system | — | 1993-03-16 |
| 5172273 | Zoom lens system | — | 1992-12-15 |
| 5170292 | Wide-angle zoom lens system | — | 1992-12-08 |
| 5159494 | Zoom lens system | — | 1992-10-27 |
| 5002373 | Zoom lens system of inner focus type | — | 1991-03-26 |
| 4854682 | Compact high vari-focal ratio zoom lens system | — | 1989-08-08 |
| 4840467 | Compact zoom lens system with a high zooming ratio | Katsuhiro Takada | 1989-06-20 |
| 4836662 | Telephoto zoom lens system | Yasuji Ogata | 1989-06-06 |
| 4822152 | Compact high-vari-focal ratio zoom lens system | — | 1989-04-18 |
| 4815829 | Telephoto zoom lens system | Yasuji Ogata | 1989-03-28 |
| 4789229 | Zoom lens system | — | 1988-12-06 |
| 4773744 | Compact zoom lens system with a high zooming ratio | — | 1988-09-27 |
| 4709998 | Telephoto lens system | — | 1987-12-01 |