Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804991 | Auto focusing light device | Nobuyoshi Hagiuda, Norikazu Yokonuma, Yoshinari Hamanishi | 1989-02-14 |
| 4796044 | Auto-focus camera | Tatuo Amanuma, Yoshiaki Ohtsubo | 1989-01-03 |