Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890288 | Light quantity control device | Toshihiko Inuyama, Akihisa Kusano, Kaoru Sato, Takashi Soya | 1989-12-26 |
| 4882782 | Safety apparatus for detecting an abnormality of power control element | Yukihide Ushio, Kaoru Seto, Kenjiro Hori, Toshihiko Inuyama | 1989-11-21 |
| 4816845 | Image forming apparatus having a stepping motor with selectively excited coils | Takashi Soya, Toshihiko Inuyama, Yasutaka Noguchi | 1989-03-28 |