Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888650 | Image forming apparatus with function of auto error correction for optical system | — | 1989-12-19 |
| 4875092 | Image forming apparatus with positioning-mark forming function | Eiichi Yamanishi, Akihiko Someya | 1989-10-17 |
| 4857954 | Image forming apparatus | Fumito Ide, Osamu Hamanaka, Takeshi Sanbayashi | 1989-08-15 |
| 4831462 | Image forming apparatus with halftone control function | Akihiko Someya | 1989-05-16 |
| 4814823 | Image forming apparatus | Fumito Ide, Osamu Hamanaka, Takeshi Sanbayashi | 1989-03-21 |