Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5907319 | Image forming apparatus promoting easy function setting | Yasunari Hashimoto, Yoshimine Horiuchi, Shunsuke Watanabe | 1999-05-25 |
| 5198861 | Image density control method for an image forming apparatus for reducing background contamination of a photoconductive drum | Shin Hasegawa, Hajime Oyama, Eiichi Katoh | 1993-03-30 |
| 5182600 | Toner end detecting method for an electrophotographic copier | Shin Hasegawa, Hajime Oyama, Eiichi Katoh | 1993-01-26 |