Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876564 | Drive device for photographic lens | Takashi Amikura, Akihiro Fujiwara, Masamichi Toyama, Susumu Kozuki | 1989-10-24 |
| 4871906 | Focus detecting device using correlation | Akihiro Fujiwara, Hirofumi Suda, Masamichi Toyama, Kunihiko Yamada | 1989-10-03 |
| 4808014 | Attaching structure for ceramics bearing | Kouichi Yamauchi, Hiroaki Takebayashi, Kazuo Rokkaku | 1989-02-28 |