Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5541711 | Charging member having a cavity, charging device, process unit, and image forming apparatus having such a charging member | Hiroki Kisu, Masaharu Ohkubo, Michihito Yamazaki, Erika Asano | 1996-07-30 |
| 5534344 | Charging member having a loosely supported charger portion | Hiroki Kisu, Masaharu Ohkubo, Michihito Yamazaki, Erika Asano, Yasushi Shimizu +1 more | 1996-07-09 |
| 5519472 | Developing apparatus using elastic blade | Masaki Ojima, Masaharu Ohkubo, Hiroki Kisu, Michihito Yamazaki, Yukihiro Ohzeki +6 more | 1996-05-21 |
| 5475471 | Changing member having a charging surface arranged with respect to a tangent line | Hiroki Kisu, Michihito Yamazaki, Erika Asano, Satoru Inami, Hiroaki Ogata +1 more | 1995-12-12 |
| 5430526 | Image forming apparatus having weighting material in image bearing member and process cartridge usable with same | Masaharu Ohkubo, Hiroki Kisu, Shinichi Tsukida | 1995-07-04 |