Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846562 | Zoom lens system | Hisashi Tokumaru | 1989-07-11 |
| 4837594 | Automatic focusing device and automatic exposure control device | Akiyoshi Nakamura, Makoto Ando, Nobuyuki Taniguchi | 1989-06-06 |