Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7415238 | Cleaning device, process cartridge, and image forming apparatus that include a blade that is pressed against a surface of a rotating member at a surface pressure of 2.0 MPa or more | Kazuhiko Watanabe, Osamu Naruse, Hidetosi Yano | 2008-08-19 |
| 7415236 | Cleaning unit, process cartridge, and image-forming apparatus | Tohru Nakano, Osamu Naruse, Masanori Horike, Masahiko Katoh | 2008-08-19 |
| 7383013 | Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged | Kazuhiko Watanabe, Kenji Sugiura, Yasushi Nakazato, Kazuhito Watanabe, Daichi Yamaguchi +6 more | 2008-06-03 |
| 7369807 | Cleaner, and process cartridge and image forming apparatus using the cleaner | Osamu Naruse, Hidetoshi Yano, Kazuhiko Watanabe | 2008-05-06 |
| 7184699 | Cleaning blade for image formation apparatus | Osamu Naruse, Hidetoshi Yano, Kazuhiko Watanabe | 2007-02-27 |
| 7123872 | Cleaning device and method, image forming apparatus, and process cartridge | Tohru Nakano, Masanori Horike, Osamu Naruse, Masahiko Katoh | 2006-10-17 |
| 6987944 | Cleaning device and image forming apparatus using the cleaning device | Yasushi Nakazato, Osamu Naruse, Naomi Sugimoto, Takahiko Tokumasu, Kenji Sugiura +1 more | 2006-01-17 |
| 6799012 | Cleaning device and image forming apparatus using the same | Yasushi Nakazato, Osamu Naruse, Naomi Sugimoto | 2004-09-28 |
| 6654579 | Image forming apparatus including diamond-like or amorphous structure containing hydrogen surface protection layer | Kei Yasutomi, Hirokatsu Suzuki, Nobutaka Takeuchi, Toshihiko Baba | 2003-11-25 |
| 6625409 | Image forming apparatus having a diamond-like structure surface protection layer on a photoconductive layer | Kei Yasutomi, Hirokatsu Suzuki, Nobutaka Takeuchi, Toshihiko Baba | 2003-09-23 |
| 6366751 | Image forming apparatus including preselected range between charge injection layer and voltage potential | Tsukuru Kai, Hidetoshi Yano, Takahiko Tokumasu, Hiroshi Ikuno, Kei Yasutomi +3 more | 2002-04-02 |
| 5937228 | Image forming apparatus | Hisashi Shoji, Nobutaka Takeuchi, Hirokatsu Suzuki | 1999-08-10 |