Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878079 | Focus detecting device | Masataka Hamada, Toshihiko Karasaki, Yukio Maekawa | 1989-10-31 |
| 4843227 | Focus detecting apparatus with both passive and active focus capability | Kazuo Kimura | 1989-06-27 |
| 4843415 | Automatic focus detection system | Hiroshi Ueda | 1989-06-27 |
| 4835561 | Focus detecting device for camera | — | 1989-05-30 |
| 4818865 | Focus detecting system for camera utilizing correction data on the aberration of the photographic lens | Toshihiko Karasaki | 1989-04-04 |