Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9832895 | Display device | — | 2017-11-28 |
| 8862015 | Image forming apparatus with urging member that establishes electrical connection with a cartridge | Isao Koishi, Susumu Nittani, Chikara Imaizumi | 2014-10-14 |
| 8526841 | Process cartridge and electrophotographic image forming apparatus | Isao Koishi, Susumu Nittani, Chikara Imaizumi | 2013-09-03 |
| 8417144 | Image forming apparatus | Atsushi Numagami, Masaki Kakitani, Akira Yoshimura | 2013-04-09 |
| 8150293 | Image forming apparatus | Atsushi Numagami, Masaki Kakitani, Akira Yoshimura | 2012-04-03 |
| 8139979 | Process cartridge and electrophotographic image forming apparatus | Isao Koishi, Susumu Nittani, Chikara Imaizumi | 2012-03-20 |
| 7890012 | Process cartridge having a drum, a developing roller, and first and second frames, and electrophotographic image forming apparatus on which such process cartridge is mountable | Isao Koishi, Susumu Nittani, Chikara Imaizumi | 2011-02-15 |
| D631092 | Process cartridge | Susumu Nittani, Shinjiro Toba, Akira Yoshimura | 2011-01-18 |
| 7856192 | Process cartridge and electrophotographic image forming apparatus | Isao Koishi, Susumu Nittani, Chikara Imaizumi | 2010-12-21 |
| 7778570 | Image forming apparatus | Atsushi Numagami, Masaki Kakitani, Akira Yoshimura | 2010-08-17 |
| 7272339 | Process cartridge including first and second frames and separating member moving the second frame to a separated position and image forming apparatus detachably mounting the cartridge | Kanji Yokomori, Susumu Nittani | 2007-09-18 |
| 7088939 | Process cartridge and electrophotographic image forming apparatus | Hideki Maeshima, Susumu Nittani | 2006-08-08 |
| 7072603 | Process cartridge and holding member | Susumu Nittani, Tatsuya Suzuki, Kanji Yokomori, Hideki Maeshima | 2006-07-04 |