Issued Patents All Time
Showing 26–50 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9042774 | Cartridge and image forming apparatus | — | 2015-05-26 |
| 8971760 | Process cartridge and image forming apparatus | Akira Yoshimura, Kazunari Murayama, Atsushi Numagami | 2015-03-03 |
| 8886109 | Cleaning unit, process cartridge, and electrophotographic image forming apparatus | Kazuo Chadani, Akihiro Fujiwara, Masato Tanabe, Hideki Kakuta, Keisuke Nomura | 2014-11-11 |
| 8862015 | Image forming apparatus with urging member that establishes electrical connection with a cartridge | Isao Koishi, Masatomo Tsuzuki, Chikara Imaizumi | 2014-10-14 |
| 8831487 | Regulating device, image bearing member cleaning device, developing device, cleaning device, process cartridge and image forming apparatus | Yosuke Kashiide, Hideki Maeshima | 2014-09-09 |
| 8712284 | Process cartridge and electrophotographic image forming apparatus | Shinjiro Toba, Akira Yoshimura | 2014-04-29 |
| 8588646 | Process cartridge and image forming apparatus | Akira Yoshimura, Kazunari Murayama, Atsushi Numagami | 2013-11-19 |
| 8583001 | Developing device and process cartridge | Yukio Kubo, Yosuke Kashiide | 2013-11-12 |
| 8565639 | Process cartridge and image forming apparatus | Kazunari Murayama, Hideki Maeshima, Yukio Kubo | 2013-10-22 |
| 8526841 | Process cartridge and electrophotographic image forming apparatus | Isao Koishi, Masatomo Tsuzuki, Chikara Imaizumi | 2013-09-03 |
| 8301054 | Process cartridge and image forming apparatus | Masato Tanabe, Shinjiro Toba, Tomio Noguchi | 2012-10-30 |
| 8213831 | Process cartridge and electrophotographic image forming apparatus | Shinjiro Toba, Akira Yoshimura | 2012-07-03 |
| 8165494 | Process cartridge having a member with a force receiving end movable to a position away from a cartridge housing | Akira Yoshimura, Kazunari Murayama, Atsushi Numagami | 2012-04-24 |
| 8139979 | Process cartridge and electrophotographic image forming apparatus | Isao Koishi, Masatomo Tsuzuki, Chikara Imaizumi | 2012-03-20 |
| 7953340 | Process cartridge having electrical contact and image forming apparatus having electrical contact in urging member | Masato Tanabe, Shinjiro Toba, Tomio Noguchi | 2011-05-31 |
| 7894733 | Process cartridge and image forming apparatus | Masato Tanabe, Shinjiro Toba, Tomio Noguchi | 2011-02-22 |
| 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, Masatomo Tsuzuki, Chikara Imaizumi | 2011-02-15 |
| D631092 | Process cartridge | Masatomo Tsuzuki, Shinjiro Toba, Akira Yoshimura | 2011-01-18 |
| 7869740 | Process cartridge and image forming apparatus | Akira Yoshimura, Kazunari Murayama, Atsushi Numagami | 2011-01-11 |
| 7860433 | Process cartridge and electrophotographic image forming apparatus | Shinjiro Toba, Akira Yoshimura | 2010-12-28 |
| 7856192 | Process cartridge and electrophotographic image forming apparatus | Isao Koishi, Masatomo Tsuzuki, Chikara Imaizumi | 2010-12-21 |
| 7813671 | Process cartridge and electrophotographic image forming apparatus | Hideki Maeshima, Masato Tanabe, Isao Koishi | 2010-10-12 |
| 7715746 | Process cartridge having electrical contact and image forming apparatus having electrical contact in urging member | Masato Tanabe, Shinjiro Toba, Tomio Noguchi | 2010-05-11 |
| 7512361 | Process cartridge whose developing roller and drum contact and separate from each other and image forming apparatus using such cartridge | Hiroshi Kawamura | 2009-03-31 |
| 7509071 | Image forming apparatus detachably mounting a process cartridge having developing roller movable to contact and be spaced from a photosensitive drum | Akira Yoshimura, Kazunari Murayama, Atsushi Numagami | 2009-03-24 |