Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879595 | Technique for reproducing an image read from a color original | Hiroshi Niki, Masahiko Matsunawa, Yoshinori Abe | 1989-11-07 |
| 4864357 | Color image processing apparatus | Masahiko Matsunawa, Yoshinori Abe | 1989-09-05 |
| 4841361 | Color image processing apparatus | Masahiko Matsunawa | 1989-06-20 |
| 4841376 | Shading correcting method enabling prevention of effect of noise and apparatus therefor | Masahiko Matsunawa | 1989-06-20 |
| 4825246 | Image processing method and image forming apparatus | Masakazu Fukuchi, Kiyoshi Akazawa, Masahiko Matsunawa, Hiroshi Niki, Shunji Matsuo +1 more | 1989-04-25 |
| 4811114 | Image reading apparatus | Toshifumi Isobe | 1989-03-07 |