Issued Patents All Time
Showing 1–25 of 83 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10353339 | Cartridge with restriction member for restricting relative movement of toner cartridge and process cartridge | Isao Koishi, Shinjiro Toba, Masaaki Sato, Hiroshi Takarada, Keita Moue | 2019-07-16 |
| 7912404 | Cartridge and electrophotographic image forming apparatus | Nobuharu Hoshi | 2011-03-22 |
| 7296341 | Disassembling tool for process cartridge | Ken Kikuchi, Toru Oguma, Akiyoshi Yokoi | 2007-11-20 |
| 7266326 | Process cartridge remanufacturing method | Noriyuki Komatsu | 2007-09-04 |
| 7136604 | Process cartridge having electrical contact connectable to electrical contact in electrophotographic image forming apparatus | Kazuo Chadani, Shigeo Miyabe, Yoshiyuki Batori, Koji Yamaguchi | 2006-11-14 |
| 7120374 | Process cartridge and electrophotographic image-forming apparatus | Noriyuki Komatsu | 2006-10-10 |
| 7095967 | Image developing apparatus, process cartridge, electrophotographic image forming apparatus, and developing unit frame | Kazushige Sakurai, Toru Oguma, Hideki Matsumoto | 2006-08-22 |
| 7082276 | Information storing medium, unit, process cartridge, developing cartridge, and electrophotographic image forming apparatus | Tatsuya Shiratori, Shinji Goto, Hironobu Isobe, Shinya Noda, Fumito Nonaka +1 more | 2006-07-25 |
| 7073251 | Disassembling tool for process cartridge | Ken Kikuchi, Toru Oguma, Akiyoshi Yokoi | 2006-07-11 |
| D524359 | Image forming apparatus | Noriyuki Komatsu | 2006-07-04 |
| 7024131 | Process cartridge assembling method, process cartridge remanufacturing method, and connecting member | Noriyuki Komatsu, Toru Oguma, Ryuta Murakami | 2006-04-04 |
| 6987938 | Process cartridge and image forming apparatus | Ryuta Murakami, Kazushi Watanabe | 2006-01-17 |
| D509533 | Image forming apparatus | Noriyuki Komatsu | 2005-09-13 |
| 6898392 | Process cartridge and electrophotographic image forming apparatus | Kazushi Watanabe, Kazuhide Kudo, Ryuta Murakami | 2005-05-24 |
| 6892035 | Developing device, a process cartridge, and an electrophotographic image forming apparatus for detecting an amount of developer | Hideki Matsumoto, Kazushige Sakurai, Takeo Shoji, Toru Oguma, Katsuhiro Kojima | 2005-05-10 |
| 6859627 | Image developing apparatus, process cartridge, electrophotographic image forming apparatus, and developing unit frame | Kazushige Sakurai, Toru Oguma, Hideki Matsumoto | 2005-02-22 |
| D500515 | Image forming apparatus | Noriyuki Komatsu | 2005-01-04 |
| D500335 | Image forming apparatus | Noriyuki Komatsu | 2004-12-28 |
| 6836639 | Cleaning apparatus having a cleaning member, a cleaning frame, and a connecting portion connecting both end surfaces of the frame | Takeo Shoji, Ryuta Murakami, Tomonori Matsunaga | 2004-12-28 |
| 6832056 | Memory member, unit, process cartridge and electrophotographic image forming apparatus | Kazushi Watanabe, Yoshihiro Ito | 2004-12-14 |
| 6826380 | Information storing medium, unit, process cartridge, developing cartridge, and electrophotographic image forming apparatus | Tatsuya Shiratori, Shinji Goto, Hironobu Isobe, Shinya Noda, Fumito Nonaka +1 more | 2004-11-30 |
| 6804475 | PROCESS CARTRIDGE COMPRISING GROUNDING, CHARGING BIAS, AND DEVELOPING BIAS CONTACTS AND INPUT AND OUTPUT CONTACTS, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS TO WHICH THE PROCESS CARTRIDGE IS DETACHABLY MOUNTABLE | Toru Oguma, Akiyoshi Yokoi | 2004-10-12 |
| 6804483 | Electrophotographic image forming apparatus and process cartridges | Akiyoshi Yokoi, Kazushi Watanabe, Toru Oguma | 2004-10-12 |
| 6782222 | Image forming apparatus and process cartridge mountable therein in which a gap exists between a main assembly antenna of the apparatus and a memory antenna of the process cartridge mounted thereon | Yoshihiro Ito, Kazushi Watanabe | 2004-08-24 |
| 6782213 | Memory member, unit, process cartridge and electrophotographic image forming apparatus | Kazushi Watanabe, Yoshihiro Ito | 2004-08-24 |