Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11172121 | Image forming apparatus, cartridge and image forming apparatus system having erroneous cartridge insertion prevention | Masato Tanabe, Kazuo Chadani, Yasunori Toriyama, Yuuki Nakamura | 2021-11-09 |
| 10880469 | Image forming apparatus, cartridge and image forming apparatus system having erroneous cartridge insertion prevention | Masato Tanabe, Kazuo Chadani, Yasunori Toriyama, Yuuki Nakamura | 2020-12-29 |
| 10582114 | Image forming apparatus, cartridge and image forming apparatus system having erroneous cartridge insertion prevention | Masato Tanabe, Kazuo Chadani, Yasunori Toriyama, Yuuki Nakamura | 2020-03-03 |
| 9720373 | Image forming apparatus, cartridge and image forming apparatus system | Masato Tanabe, Kazuo Chadani, Yasunori Toriyama, Yuuki Nakamura | 2017-08-01 |
| 9329569 | Manufacturing method of cartridge including information storing element, information storing element exchanging method of the cartridge, the cartridge and image forming apparatus | Tatsuya Kanno | 2016-05-03 |
| 9182733 | Developer supply cartridge, process cartridge and image forming apparatus | Tadashi Horikawa, Takahito Ueno | 2015-11-10 |
| 9110395 | Image forming apparatus and cartridge | Akinobu Hirayama, Takateru Ohkubo, Takahito Ueno | 2015-08-18 |
| 8526851 | Process cartridge and electrophotographic image forming apparatus | — | 2013-09-03 |
| 8238787 | Process cartridge and electrophotographic image forming apparatus | — | 2012-08-07 |
| D639846 | Process cartridge | Kazuhiko Kanno, Tachio Kawai, Tadashi Horikawa, Hiroshi Takarada | 2011-06-14 |
| D639335 | Process cartridge | Kazuhiko Kanno, Tachio Kawai, Tadashi Horikawa, Hiroshi Takarada | 2011-06-07 |
| D638057 | Process cartridge | Kazuhiko Kanno, Tachio Kawai, Tadashi Horikawa, Hiroshi Takarada | 2011-05-17 |
| D638056 | Process cartridge | Kazuhiko Kanno, Tachio Kawai, Tadashi Horikawa, Hiroshi Takarada | 2011-05-17 |
| D599846 | Process cartridge | Kojiro Yasui, Tachio Kawai, Koji Yamaguchi, Tadashi Horikawa, Yasufumi Yoshino +2 more | 2009-09-08 |
| D599847 | Toner cartridge | Kojiro Yasui, Tachio Kawai, Koji Yamaguchi, Tadashi Horikawa, Yasufumi Yoshino +2 more | 2009-09-08 |