Issued Patents All Time
Showing 51–75 of 137 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6336018 | Electrophotographic image forming apparatus, process cartridge, and drive mount for photosensitive drum | Toshiharu Kawai, Yoshihiro Ito | 2002-01-01 |
| 6330409 | Process cartridge and electrophotographic image forming apparatus | Isao Ikemoto, Atsushi Numagami, Katsunori Yokoyama | 2001-12-11 |
| 6330402 | Developer amount indicating method, electrophotographic image forming apparatus and process cartridge | Kazushige Sakurai, Isao Ikemoto, Toshiyuki Karakama, Hideki Matsumoto | 2001-12-11 |
| 6324363 | Process cartridge and electrophotographic image forming apparatus | Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto | 2001-11-27 |
| 6272299 | Process cartridge and electrophotographic image forming apparatus | Atsushi Numagami, Toru Oguma | 2001-08-07 |
| 6246849 | Bearing, process cartridge and electrophotographic image forming apparatus | Katsunori Yokoyama, Atsushi Numagami | 2001-06-12 |
| 6240266 | Process cartridge and drum mount for photosensitive drum | Yoshihiro Ito, Toshiharu Kawai | 2001-05-29 |
| 6236821 | Process cartridge having a coupling pin and a coupling pin comprising first, second, and third shaft portion | Katsunori Yokoyama, Atsushi Numagami | 2001-05-22 |
| 6226478 | Process cartridge having drive mount for photosensitive drum | Yoshihiro Ito, Toshiharu Kawai | 2001-05-01 |
| 6175706 | Process cartridge, electrophotographic image forming apparatus driving force transmission part and electrophotographic photosensitive drum | Yoshihiro Ito, Toshiharu Kawai | 2001-01-16 |
| 6169866 | Process cartridge and electrophotographic image forming apparatus | Isao Ikemoto, Atsushi Numagami, Katsunori Yokoyama | 2001-01-02 |
| 6163665 | Process cartridge electrophotographic image forming apparatus and positioning there between | Yoshihiro Ito, Toshiharu Kawai | 2000-12-19 |
| 6160976 | Developing device having magnetic seals | Toshiyuki Karakama, Isao Ikemoto | 2000-12-12 |
| 6144398 | Process cartridge and electrophotographic image forming apparatus | Katsunori Yokoyama, Yoshihiro Ito | 2000-11-07 |
| 6128454 | Process cartridge, electrophotographic image forming apparatus, driving force transmission part, and electrophotographic photosensitive drum | Toshiharu Kawai, Yoshihiro Ito | 2000-10-03 |
| 6118961 | Detachable two-frame process cartridge for an image forming apparatus | Yoshiya Nomura, Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Hiroyuki Shirai +1 more | 2000-09-12 |
| 6118960 | End cover, process cartridge and assembling method for process cartridge | Takao Nakagawa, Atsushi Numagami, Katsunori Yokoyama | 2000-09-12 |
| 6101354 | Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and such a process cartridge whose developing member is supported at a position which deviates from a developing position | Takao Nakagawa, Toshiyuki Karakama, Atsushi Numagami, Katsunori Yokoyama | 2000-08-08 |
| 6097909 | Photosensitive drum mounting method, process cartridge and electrophotographic image forming apparatus | Atsushi Numagami, Toru Oguma | 2000-08-01 |
| 6097908 | Electrical connector, process cartridge and electrophotographic image forming apparatus | Seiji Uchiyama, Atsushi Numagami, Katsunori Yokoyama | 2000-08-01 |
| 6097911 | Process cartridge having shiftable cover with specific spacing between cover and cartridge | Tadayuki Tsuda, Hiroyuki Shirai, Teruo Komatsu, Ikuo Ikemori | 2000-08-01 |
| 6075956 | Process cartridge having shiftable cover and guide member for directing airflow | Tadayuki Tsuda, Hiroyuki Shirai, Teruo Komatsu, Ikuo Ikemori | 2000-06-13 |
| 6070028 | Process cartridge, electrophotographic image forming apparatus and coupling therebetween | Kazuyoshi Odagawa, Shinichi Sasaki, Isao Ikemoto, Toshiyuki Karakama | 2000-05-30 |
| 6044237 | Developing apparatus | Atsushi Numagami, Katsunori Yokoyama | 2000-03-28 |
| 6029032 | Process cartridge and electrophotographic image forming apparatus | Isao Ikemoto, Atsushi Numagami, Katsunori Yokoyama | 2000-02-22 |