Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860053 | Color image forming apparatus having a plurality of developing units | Takao Ichihashi, Shuji Fujisawa, Eiichi Tone, Takeshi Tsuda | 1989-08-22 |
| 4851876 | Paper discharge control method in an image forming apparatus having an intermediate tray | Masamitsu Yamane, Shusaku Ogawa | 1989-07-25 |
| 4839695 | Device for controlling charge area of photoreceptor | Shusaku Ogawa | 1989-06-13 |
| 4827283 | Lighting control method and a lighting control apparatus of a light source in an image forming apparatus | Takao Ichihashi | 1989-05-02 |
| 4801975 | Eraser lamp and transparent guide plate in electrostatic image transfer | Atsushi Kano, Toshio Watanabe, Katsuhide Yamaguchi, Kenji Oda, Arihiro Tsunoda +1 more | 1989-01-31 |