Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881094 | Lens interchange type single-lens reflex camera system and intermediate barrel therefor | Nobuhiko Terui, Yoshiharu Shiokama, Nobuaki Sasagaki | 1989-11-14 |
| 4812636 | Automatic focal point control apparatus with correction of sequential defocus signals dependent on object contrast | Ken Utagawa | 1989-03-14 |