Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841325 | Automatic focusing device for camera | Kunihisa Hoshino, Yoshinari Hamanishi | 1989-06-20 |
| 4816663 | Camera system with vignetting calculation and memory means | Kunihisa Hoshino | 1989-03-28 |
| 4812636 | Automatic focal point control apparatus with correction of sequential defocus signals dependent on object contrast | Yosuke Kusaka | 1989-03-14 |
| 4812868 | Detecting apparatus for focus in camera | Yoshinari Hamanishi | 1989-03-14 |