Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826373 | PROCESS CARTRIDGE, AN IMAGE FORMING APPARATUS, AND SYSTEM DESIGNED TO BLOCK ATTACHMENT OF A PROCESS CARTRIDGE TO AN APPARATUS FUNCTIONALLY DIFFERENT FROM THE APPARATUS TO WHICH THE PROCESS CARTRIDGE IS DESIGNED TO BE ATTACHED | — | 2004-11-30 |
| 6343192 | Developing device frame, process cartridge, and electrophotographic image forming apparatus | Shigeo Miyabe, Kanji Yokomori | 2002-01-29 |
| 6324364 | Electrophotographic photosensitive drum, process cartridge, and electrophotographic image forming apparatus | Satoshi Kurihara, Teruhiko Sasaki | 2001-11-27 |
| 6272300 | Remanufacturing method for process cartridge, process cartridge and image forming apparatus | Yasuo Fujiwara, Hideshi Kawaguchi, Hiroaki Miyake, Kenji Matsuda | 2001-08-07 |
| 6226476 | Developing device holder having antenna contact mounting unit | Shigeo Miyabe, Kanji Yokomori | 2001-05-01 |
| 6215969 | Toner container, toner container assembling method, process cartridge, and electrophotographic image forming apparatus | Kanji Yokomori, Shigeo Miyabe | 2001-04-10 |
| 6208816 | Developing device, process cartridge, electrophotographic image forming apparatus and agitating member | Toru Koizumi | 2001-03-27 |
| 6201935 | Electrophotographic image forming apparatus, electrophotographic image forming system, and process cartridge | Ichiro Terada, Shinichi Sasaki, Isao Ikemoto, Shinya Noda | 2001-03-13 |
| 6169865 | Developing device frame process cartridge and electrophotographic image forming apparatus | Shigeo Miyabe, Kanji Yokomori | 2001-01-02 |
| 6118961 | Detachable two-frame process cartridge for an image forming apparatus | Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Kazushi Watanabe, Hiroyuki Shirai +1 more | 2000-09-12 |
| 6084622 | Frame structure and an image forming apparatus using such a frame structure | Yoshinori Sugiura, Jun Azuma, Nobukazu Adachi, Takeshi Setoriyama, Chitose Tenpaku +9 more | 2000-07-04 |
| 6072968 | Process cartridge, assembling method for process cartridge and electrophotographic image forming apparatus | Yoshikazu Sasago, Shigeo Miyabe | 2000-06-06 |
| 6064843 | Process cartridge and image forming apparatus | Hironobu Isobe, Atsushi Kubota, Kanji Yokomori, Shigeo Miyabe | 2000-05-16 |
| 6029031 | Process cartridge and remanufacturing method | Kanji Yokomori, Shigeo Miyabe | 2000-02-22 |
| 5987278 | Process cartridge and image forming apparatus usable therewith | Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Kazushi Watanabe, Hiroyuki Shirai +1 more | 1999-11-16 |
| 5907751 | Process cartridge with mounting projections and image forming apparatus using such a process cartridge | Hideshi Kawaguchi | 1999-05-25 |
| 5907749 | Process cartridge and image forming apparatus usable therewith | Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Kazushi Watanabe, Hiroyuki Shirai +1 more | 1999-05-25 |
| 5878309 | Toner container, toner container assembling method, process cartridge, and electrophotographic image forming apparatus | Kanji Yokomori, Shigeo Miyabe | 1999-03-02 |
| 5867751 | Process cartridge detachably mountable to an image forming apparatus having an improved arrangement of voltage applying members | Yoshinori Sugiura, Hideshi Kawaguchi, Hiroaki Miyake, Kenji Matsuda | 1999-02-02 |
| 5839028 | Process cartridge and refilling method therefor | Kanji Yokomori, Shigeo Miyabe | 1998-11-17 |
| 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 |
| 5825472 | Photosensitive drum, process cartridge and image forming apparatus | Ryuji Araki, Yoshinori Sugiura, Hideshi Kawaguchi, Hiroaki Miyake, Kenji Matsuda +1 more | 1998-10-20 |
| 5787323 | Image forming apparatus having a detachably mountable process cartridge | Yoshinori Sugiura, Yoshiro Tsuchiya | 1998-07-28 |
| 5697022 | Process cartridge, image forming apparatus usable therewith and process cartridge assembling method | Kenji Matsuda, Yoshinori Sugiura, Hideshi Kawaguchi, Hiroaki Miyake | 1997-12-09 |
| 5682579 | Detachable two-frame process cartridge for an image forming apparatus | Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Kazushi Watanabe, Hiroyuki Shirai +1 more | 1997-10-28 |