Issued Patents 2003
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6628908 | Toner supply unit and image forming apparatus | Junichi Matsumoto, Nobuo Kasahara, Nobuo Iwata, Satoshi Muramatsu, Tomoyuki Ichikawa +5 more | 2003-09-30 |
| 6591077 | Image forming apparatus and toner container therefor | Takaaki Yanagisawa, Tomotoshi Nakahara, Kazuhisa Sudo, Yoshio Hattori, Kouta Fujimori | 2003-07-08 |
| 6567637 | Apparatus and method for replenishing a developing device with toner while suppressing toner remaining | Takaaki Yanagisawa, Kazuhiko Yuuki, Akio Kosuge, Yoshinori Ozawa, Yoshi Hattori +4 more | 2003-05-20 |
| 6567643 | Apparatuses for color image formation, tandem color image formation and image formation | Motokazu Yasui, Hiroyasu Shijo, Tomotoshi Nakahara | 2003-05-20 |
| 6546219 | Method and apparatus for performing a charging process on an image carrying device | Hiroshi Yoshinaga, Yukiko Iwasaki, Hitoshi Ishibashi, Takatsugu Fujishiro, Masami Hiramatsu +1 more | 2003-04-08 |
| 6519428 | Image forming apparatus having mixed toner consumption mode | Megumi Ohtoshi, Hitoshi Ishibashi, Yoshinori Ozawa | 2003-02-11 |
| 6507720 | Color image forming apparatus and toner replenishing apparatus each including plural toner containers received in receiving member of setting part and toner containers therefor | Masaaki Kabumoto, Goro Katsuyama, Kanae Amemiya, Masahiro Kurita, Masahiro Yonekawa +6 more | 2003-01-14 |
| 6507354 | Image forming apparatus with a writing laser power control | — | 2003-01-14 |
| 6505022 | Image forming apparatus having protective layer on the surface of image bearing member to avoid adhesion of film of additives to image bearing member | Akio Kosuge, Hitoshi Ishibashi, Hiroshi Yoshinaga, Yukiko Iwasaki | 2003-01-07 |