Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881096 | Motor-driven shutter for camera | Masuo Ogihara, Hiroyuki Ishida, Shinji Nagaoka, Youichi Seki, Shigeru Tagami +1 more | 1989-11-14 |
| 4876563 | Motor-driven shutter for camera | Hiroaki Ishida, Michitake Nakazawa | 1989-10-24 |
| 4868596 | Motor driven shutter for camera | Hiroaki Ishida | 1989-09-19 |
| 4864346 | Program shutter | Shigeru Tagami, Masaki Tanaka, Katauhito Niwa | 1989-09-05 |
| 4864347 | Program shutter | Tadashi Nakagawa, Shigeru Tagami, Youichi Seki | 1989-09-05 |