Issued Patents 2005
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6936387 | Electrophotographic photoreceptor, and electrophotographic process cartridge and electrophotographic apparatus using the same | Kenji Yao, Wataru Yamada, Kazuhiro Koseki | 2005-08-30 |
| 6933088 | Photoreceptor of electrophotographic system, process cartridge and image forming apparatus | Wataru Yamada, Kazuhiro Koseki | 2005-08-23 |
| 6887591 | Organic electroluminescence device | Wataru Yamada | 2005-05-03 |
| 6881528 | Image formation method | Katsumi Daimon, Takashi Imai, Wataru Yamada | 2005-04-19 |
| 6876371 | Image forming apparatus | Takahiro Suzuki, Taketoshi Hoshizaki, Mitsuhide Nakamura, Kazuhiro Koseki, Takayuki Yamashita +2 more | 2005-04-05 |