Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D599846 | Process cartridge | Tachio Kawai, Koji Yamaguchi, Tadashi Horikawa, Yasufumi Yoshino, Akinobu Hirayama +2 more | 2009-09-08 |
| D599847 | Toner cartridge | Tachio Kawai, Koji Yamaguchi, Tadashi Horikawa, Yasufumi Yoshino, Akinobu Hirayama +2 more | 2009-09-08 |
| 7155137 | Process cartridge, developing cartridge and developing roller | Hironobu Isobe, Hiroshi Sato, Seiichi Shinohara, Yasufumi Yoshino, Syuhei Kawasaki | 2006-12-26 |
| 7085516 | Process cartridge and electrophotographic image forming apparatus | Tachio Kawai, Kinya Harada | 2006-08-01 |
| 7068965 | Developing cartridge, side cover mounting method and electrophotographic image forming apparatus | Yasufumi Yoshino, Koji Yamaguchi | 2006-06-27 |
| 7016626 | Electrophotographic photosensitive drum having caulked flanges, process cartridge having such a drum, and image forming apparatus having such a process cartridge | Kanji Yokomori, Tachio Kawai | 2006-03-21 |
| 6978100 | Process cartridge, developing cartridge and developing roller | Hironobu Isobe, Hiroshi Sato, Seiichi Shinohara, Yasufumi Yoshino, Syuhei Kawasaki | 2005-12-20 |
| 6859629 | Image forming apparatus having developer container with light transmitting window used for remaining developer amount detection | Koji Miura, Jun Miyamoto, Takeshi Arimitsu | 2005-02-22 |
| 6839529 | Developing device and process cartridge | Susumu Nittani, Hideki Maeshima | 2005-01-04 |
| 6681088 | Process cartridge, image forming apparatus and separating mechanism for separating developing member from photosensitive drum | Kazuhiko Kanno, Tadashi Horikawa, Susumu Nittani, Tatsuya Suzuki, Koji Yamaguchi | 2004-01-20 |
| 6654583 | Developing apparatus | Tatsuya Suzuki, Kouji Hashimoto, Susumu Nittani | 2003-11-25 |