Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855779 | Camera system | Norio Ishikawa, Masaaki Nakai, Masayasu Hirano, Akihiko Fujino, Hiroshi Ootsuka +1 more | 1989-08-08 |
| 4827299 | Automatic focus control camera | Yasuaki Akada, Norio Ishikawa, Nobuyuki Taniguchi | 1989-05-02 |
| 4827301 | Focus detection system and lighting device therefor | Tohru Matsui | 1989-05-02 |
| 4803508 | Focus detection system and lighting device therefor | Tohru Matsui | 1989-02-07 |