Issued Patents All Time
Showing 26–50 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826380 | Information storing medium, unit, process cartridge, developing cartridge, and electrophotographic image forming apparatus | Toshiyuki Karakama, Tatsuya Shiratori, Shinji Goto, Hironobu Isobe, Fumito Nonaka +1 more | 2004-11-30 |
| 6735406 | Process cartridge mounting mechanism, electrophotographic image forming apparatus, and process cartridge | — | 2004-05-11 |
| 6714750 | Process cartridge, mounting mechanism for process cartridge and electrophotographic image forming apparatus | Ichiro Terada, Kiyoshi Amano | 2004-03-30 |
| 6690902 | Process cartridge mounting and demounting mechanism and process cartridge | Hideki Miyazaki | 2004-02-10 |
| D462984 | Image forming apparatus | Hideki Hayashi, Teruhiko Sasaki, Satoshi Kurihara, Minoru Sato | 2002-09-17 |
| 6400914 | Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus | Shinichi Sasaki, Akihiro Toma, Isao Ikemoto, Kazushi Watanabe, Akira Higeta | 2002-06-04 |
| 6385413 | Developing device to which developing voltage is applied from non-driving side | Teruhiko Sasaki, Yoshikazu Sasago, Yoshiyuki Batori, Takashi Akutsu, Ichiro Terada | 2002-05-07 |
| 6366746 | Developing device and electric energy supply part for applying developing bias voltage | Yoshikazu Sasago, Teruhiko Sasaki, Yoshiyuki Batori, Takashi Akutsu, Ichiro Terada | 2002-04-02 |
| 6336012 | Developing device, process cartridge and electric energy supply part to developing roller | Yoshikazu Sasago, Teruhiko Sasaki, Yoshiyuki Batori, Takashi Akutsu, Ichiro Terada | 2002-01-01 |
| 6229974 | Process cartridge push-in mechanism and electrophotographic image forming apparatus having the same | — | 2001-05-08 |
| 6208818 | Process cartridge and electrophotographic image forming apparatus | — | 2001-03-27 |
| 6201935 | Electrophotographic image forming apparatus, electrophotographic image forming system, and process cartridge | Ichiro Terada, Shinichi Sasaki, Isao Ikemoto, Yoshiya Nomura | 2001-03-13 |
| 6185390 | Electrophotographic image forming apparatus having process cartridge with particular arrangement of electrical contacts | Akira Higeta, Minoru Sato | 2001-02-06 |
| 6115565 | Sealing member, cleaning apparatus, process cartridge and electrophotographic image forming apparatus | — | 2000-09-05 |
| 5943528 | Toner accommodating container with a gripping cover feature usable with a process cartridge, a process cartridge using the same, and an apparatus using the process cartridge | Takashi Akutsu, Yoshikazu Sasago, Haruhisa Oshida, Toshiyuki Karakama, Kanji Yokomori | 1999-08-24 |
| 5930562 | Process cartridge and electrophotographic image forming apparatus with covered gear | Yoshiyuki Batori | 1999-07-27 |
| 5926672 | Photosensitive drum provided in an image forming apparatus including helical gears disposed at an end of the drum | Atsushi Nishibata, Morikazu Mizutani, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto +4 more | 1999-07-20 |
| 5920752 | Process cartridge including a toner frame swingably coupled with a drum frame feature and a grip feature, and an apparatus using the same | Toshiyuki Karakama, Isao Ikemoto, Yoshikazu Sasago, Haruhisa Oshida | 1999-07-06 |
| 5899602 | Process cartridge, process cartridge assembly method, and image forming apparatus | Yoshikazu Sasago, Haruhisa Oshida, Toshiyuki Karakama | 1999-05-04 |
| 5890036 | Process cartridge, process cartridge assembly method, and image forming apparatus | Toshiyuki Karakama, Isao Ikemoto, Yoshikazu Sasago, Haruhisa Oshida | 1999-03-30 |
| 5878310 | Process cartridge, assembling method for process cartridge and electrophotographic image forming apparatus | Yoshikazu Sasago, Haruhisa Oshida, Toshiyuki Karakama, Shigeo Miyabe | 1999-03-02 |
| 5828928 | Process cartridge mountable in an image forming system and a method for assembling a cleaning device | Yoshikazu Sasago, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe +10 more | 1998-10-27 |
| 5828929 | Image forming system and process cartridge having particular arrangement of electrical contacts | Kazushi Watanabe, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Yoshimasu Yamaguchi +2 more | 1998-10-27 |
| 5774766 | Process cartridge, process cartridge assembly method, and electrophotographic image forming apparatus | Toshiyuki Karakama, Isao Ikemoto, Yoshikazu Sasago, Haruhisa Oshida | 1998-06-30 |
| 5749027 | Process cartridge, process cartridge assembly method, and image forming apparatus | Isao Ikemoto, Yoshikazu Sasago, Haruhisa Oshida, Toshiyuki Karakama | 1998-05-05 |