Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5795690 | Electrophotographic photoreceptor, image forming apparatus and image forming process | Ichiro Takegawa, Hidemi Nukada, Hiroshi Yamamoto, Takaaki Kimura | 1998-08-18 |
| 5763127 | Electrophotographic photoreceptor | Ichiro Takegawa | 1998-06-09 |