Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7127194 | Process cartridge, positioning mechanism therefor and electrophotographic image forming apparatus | Kazunari Murayama, Hideki Maeshima | 2006-10-24 |
| 7092657 | Electrophotographic image forming apparatus, and process cartridge | Yoshiaki Nakashima, Takeshi Setoriyama, Shuji Nishitani, Hidetoshi Yamashita, Kazunari Murayama +2 more | 2006-08-15 |
| 7072594 | Developing apparatus, process cartridge, and image forming apparatus | Tatsuya Suzuki, Hideki Maeshima | 2006-07-04 |
| D519150 | Image forming apparatus | Hisayoshi Kojima, Kanji Yokomori, Kazunari Murayama, Tatsuya Suzuki, Hideki Maeshima +2 more | 2006-04-18 |
| 7027756 | Process cartridge and assemblying method therefor | Susumu Nittani, Tatsuya Suzuki | 2006-04-11 |
| 6990302 | Process cartridge and electrophotographic image forming apparatus regulating the positions of creases on a flexible member in accordance with pivotal movement of a support member | Shinjiro Toba, Kazunari Murayama | 2006-01-24 |
| 6873815 | Part of an image forming apparatus and a unit having a groove covered with a brush member | Kenji Matsuda, Akiyoshi Fujita | 2005-03-29 |
| 6865357 | Drive transmission mechanism for transmitting drive to processing means and cartridge provided with same | Akiyoshi Fujita, Kenji Matsuda | 2005-03-08 |
| 6823153 | DEVELOPING DEVICE AND PROCESS CARTRIDGE COMPRISING FIRST AND SECOND SEALING MEMBERS AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS COMPRISING A DEVELOPING DEVICE COMPRISING FIRST AND SECOND SEALING MEMBERS | Takahito Ueno, Kazunari Murayama | 2004-11-23 |
| 6754461 | Developer charging device | Kenji Matsuda, Akiyoshi Fujita | 2004-06-22 |
| 6701113 | Developer carrying member, developer replenishment container and image forming apparatus | Kenji Matsuda, Akiyoshi Fujita | 2004-03-02 |
| 6577831 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS TO WHICH A PROCESS CARTRIDGE IS DETACHABLY MOUNTABLE AND PROCESS CARTRIDGE HAVING A SUPPORTING MEMBER FOR ROTATABLY SUPPORTING A DEVELOPING ROLLER AT A POSITION AWAY FROM THE CENTER OF ROTATION THEREOF | Hisayoshi Kojima, Atsushi Numagami, Kazunari Murayama | 2003-06-10 |
| 6463233 | Process cartridge having first and second cartridge guiding portions and an electrophotographic image forming apparatus to which the process cartridge is attached | Hisayoshi Kojima, Hironobu Isobe, Atsushi Numagami, Kazunari Murayama | 2002-10-08 |
| 6442359 | PROCESS CARTRIDGE DETACHABLY MOUNTABLE TO A MAIN ASSEMBLY OF AN ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS COMPRISING MEANS FOR ROTATING A CHARGING UNIT IF FIRST AND SECOND ROTATIONAL DIRECTIONS AND THE APPARATUS MOUNTING SUCH A PROCESS CARTRIDGE | Atsushi Numagami, Hisayoshi Kojima, Hironobu Isobe, Kazunari Murayama | 2002-08-27 |
| 6229979 | Developing charging member supplied with a voltage of a same polarity as that of a developer and not less than a charge starting voltage and a developing charging roller with internal bearing | Yasuyuki Ishii, Tadayuki Tsuda, Shinichi Sasaki, Kanji Yokomori, Kouji Hashimoto +1 more | 2001-05-08 |
| 6185392 | Developing apparatus | — | 2001-02-06 |
| 6144820 | Developing apparatus with a sealing member having an insulating layer and a conductive portion | Yasuyuki Ishii, Kenji Matsuda, Kouji Hashimoto, Akiyoshi Fujita, Norio Takami +1 more | 2000-11-07 |
| 6078763 | Process cartridge, assembling method and electrophotographic image forming apparatus | — | 2000-06-20 |
| 5995782 | Developing cartridge with mounting positioning feature and image forming apparatus using the same | Hironobu Isobe | 1999-11-30 |
| 5923926 | Developing device and electrophotographic image forming apparatus | Hironobu Isobe | 1999-07-13 |
| 5809374 | Process cartridge including a seal member formed from a liquid-foam material | Tadayuki Tsuda, Kazumi Sekine, Isao Ikemoto, Kazushi Watanabe, Akira Higeta | 1998-09-15 |
| 5740499 | Image forming apparatus including process cartridge having elastic sealing members interposed between frames | Akira Higeta, Isao Ikemoto | 1998-04-14 |