Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837846 | Method of the image processing | Masaaki Oyabu, Masamichi Sugiura, Hirofumi Hasegawa | 1989-06-06 |
| 4817174 | Image processing apparatus | — | 1989-03-28 |
| 4807046 | Copier | — | 1989-02-21 |