Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8526846 | Process cartridge and image forming apparatus | — | 2013-09-03 |
| 8515306 | Cartridge and image forming apparatus | Tachio Kawai, Hiroshi Takarada, Takashi Nakanishi | 2013-08-20 |
| 8249485 | Process cartridge with portions to be supported and regulated during insertion of the cartridge into an electrophotographic image forming apparatus | Tachio Kawai, Hiroshi Takarada, Takashi Nakanishi | 2012-08-21 |
| 7979009 | Developer supplying cartridge including a developer supplying port shutter portion and electrophotographic image forming apparatus using the cartridge | — | 2011-07-12 |
| D639846 | Process cartridge | Kazuhiko Kanno, Tachio Kawai, Hiroshi Takarada, Sadaaki Tani | 2011-06-14 |
| D639335 | Process cartridge | Kazuhiko Kanno, Tachio Kawai, Hiroshi Takarada, Sadaaki Tani | 2011-06-07 |
| D638056 | Process cartridge | Kazuhiko Kanno, Tachio Kawai, Hiroshi Takarada, Sadaaki Tani | 2011-05-17 |
| D638057 | Process cartridge | Kazuhiko Kanno, Tachio Kawai, Hiroshi Takarada, Sadaaki Tani | 2011-05-17 |
| 7933534 | Developing device frame unit, developing device, process cartridge, and manufacturing method of the developing device frame unit | Nobuharu Hoshi, Akira Suzuki, Makoto Hayashida, Kazuhiko Kanno | 2011-04-26 |
| D599847 | Toner cartridge | Kojiro Yasui, Tachio Kawai, Koji Yamaguchi, Yasufumi Yoshino, Akinobu Hirayama +2 more | 2009-09-08 |
| D599846 | Process cartridge | Kojiro Yasui, Tachio Kawai, Koji Yamaguchi, Yasufumi Yoshino, Akinobu Hirayama +2 more | 2009-09-08 |
| 7386241 | Processing cartridge rotating a drum shaft in different directions and image forming apparatus mounting such a cartridge | Tomonori Mori, Susumu Nittani | 2008-06-10 |
| 7366440 | Process cartridge feeding developer from first to second removed developer accommodating portions and image forming apparatus to which the cartridge is mountable | — | 2008-04-29 |
| 6681088 | Process cartridge, image forming apparatus and separating mechanism for separating developing member from photosensitive drum | Kazuhiko Kanno, Kojiro Yasui, Susumu Nittani, Tatsuya Suzuki, Koji Yamaguchi | 2004-01-20 |
| 6587660 | Developing apparatus | Takahito Ueno, Hisayoshi Kojima, Kazunari Murayama | 2003-07-01 |
| D474497 | Image forming apparatus | Tachio Kawai, Kanji Yokomori, Jun Miyamoto, Takeshi Arimitsu, Koji Hashimoto +1 more | 2003-05-13 |
| D474232 | Image forming apparatus | Tachio Kawai, Kanji Yokomori, Jun Miyamoto, Takeshi Arimitsu, Koji Hashimoto +1 more | 2003-05-06 |
| 6553189 | Optical guide, process cartridge, and electrophotographic image forming apparatus | Jun Miyamoto | 2003-04-22 |
| 6549735 | Developing apparatus with longitudinal end leakage preventing member in contact with smooth surface part of a developer carrying member | Akiyoshi Fujita, Kenji Matsuda | 2003-04-15 |
| 6385416 | Space securing member, developing device, charging device and process cartridge | Atsushi Numagami, Kazunari Murayama, Takahito Ueno | 2002-05-07 |
| 6195515 | Developing apparatus including a seal member sandwiched between a developer bearing member and a leakage preventing member | Akiyoshi Fujita, Kenji Matsuda | 2001-02-27 |
| 6144820 | Developing apparatus with a sealing member having an insulating layer and a conductive portion | Yasuyuki Ishii, Kenji Matsuda, Kouji Hashimoto, Akiyoshi Fujita, Nobuharu Hoshi +1 more | 2000-11-07 |
| 5565864 | Absolute encoder | Kou Ohno, Toru Morita, Yuuji Yamazaki | 1996-10-15 |