Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5446592 | Compact zoom lens system | Tetsuo Kohno, Takashi Okada | 1995-08-29 |
| 5283693 | Compact zoom lens system | Tetsuo Kohno, Takashi Okada, Hiroyuki Matsumoto | 1994-02-01 |
| 5105311 | Zoom lens system having high zoom ratio ranging to wide field angle | Hisashi Tokumaru | 1992-04-14 |
| 4892398 | Triplet type objective with a diaphragm arranged behind the lens system | Yoshinobu Kudo, Akira Fukushima, Kazuo Kimura | 1990-01-09 |