Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9031491 | Image forming apparatus and process cartridge | Tomoharu Asano, Akihiro Sugino, Noboru Toriu, Keisuke Shimoyama, Mitsuaki Hirose +2 more | 2015-05-12 |
| 8647798 | Photoreceptor, process cartridge and image forming apparatus | Tomoharu Asano, Hiroshi Ikuno, Akihiro Sugino, Mitsuaki Hirose | 2014-02-11 |
| 8507163 | Method of manufacturing image bearing member, image bearing member, and image forming apparatus | Nozomu Tamoto, Mitsuaki Hirose | 2013-08-13 |
| 8486595 | Image bearing member, image forming apparatus, and process cartridge | Nozomu Tamoto, Mitsuaki Hirose | 2013-07-16 |
| 8472818 | Image carrier deterioration degree evaluating device, image carrier failure predicting device, and image forming apparatus | Jun Yamane, Yasushi Nakazato, Kohji Ue, Masahide Yamashita, Mikiko Imazeki +5 more | 2013-06-25 |
| 8173343 | Electrophotographic photoconductor, image forming apparatus using the same, and process cartridge | — | 2012-05-08 |
| 8007972 | Electrophotographic photoconductor, and image forming apparatus, process cartridge and image forming method using the same | Eiji Kurimoto, Keisuke Shimoyama, Michio Kimura, Shinichi Kawamura, Takeshi Takada +2 more | 2011-08-30 |
| 7995950 | Image forming apparatus, image forming method and process cartridge involving the use of a cleaning blade that removes toner remaining on a surface of an image bearing member | — | 2011-08-09 |
| 7964327 | Electrophotographic photoreceptor and method of preparing the photoreceptor, and image forming apparatus, image forming method and process cartridge using the photoreceptor | Masanobu Gondoh, Akihiro Sugino, Shinji Nohsho, Tomoyuki Shimada, Takaaki Ikegami | 2011-06-21 |
| 7729634 | Image forming apparatus, image forming method, and process cartridge | Masanobu Gondoh, Shinji Nohsho | 2010-06-01 |
| 7486914 | Electrophotographic image forming apparatus, process cartridge and image forming method wherein lubricant is supplied to a surface of an image bearing member | Toshiyuki Kabata, Keisuke Shimoyama, Shinji Nousho | 2009-02-03 |
| 7314693 | Electrophotographic photoconductor, electrophotographic process, electrophotographic apparatus, and process cartridge | Takaaki Ikegami, Shinji Nohsho, Eiji Kurimoto, Hidetoshi Kami, Akihiro Sugino +2 more | 2008-01-01 |
| 7274898 | Process cartridge, image forming method, and image forming apparatus | Shinji Nousho, Keisuke Shimoyama | 2007-09-25 |
| 7267916 | Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the electrophotographic photoreceptor | Akihiro Sugino, Shinji Nousho, Takaaki Ikegami, Eiji Kurimoto, Hidetoshi Kami +1 more | 2007-09-11 |
| 7027759 | Apparatus having endless belt with roughened guide | Toshiyuki Kabata, Michio Kimura, Shinji Nousyo, Akihiro Sugino | 2006-04-11 |
| 6816691 | Apparatus having endless belt with roughened guide | Toshiyuki Kabata, Michio Kimura, Shinji Nousyo, Akihiro Sugino | 2004-11-09 |
| 5994012 | Naphthoquinone derivative and electrophotosensitive material using same | Yukimasa Watanabe, Sakae Saito, Hirofumi Kawaguchi, Akiyoshi Urano, Fumio Sugai +7 more | 1999-11-30 |
| 5863688 | Naphthoquinone derivative | Yukimasa Watanabe, Sakae Saito, Hirofumi Kawaguchi, Akiyoshi Urano, Fumio Sugai +7 more | 1999-01-26 |
| 5843606 | Phenanthrylenediamine derivative | Eiichi Miyamoto, Mikio Kakui, Yukikatsu Imanaka, Yasuyuki Hanatani | 1998-12-01 |
| 5830615 | Naphthylenediamine derivative and electrophotosensitive material using the same | Eiichi Miyamoto, Mikio Kakui, Yukikatsu Imanaka, Tadashi Sakuma, Maki Uchida +4 more | 1998-11-03 |
| 5826153 | Image-forming machine | Hiroyuki Hazama, Eiichi Miyamoto, Takashi Terada, Masayuki Ishii, Takahiko Murata | 1998-10-20 |
| 5767315 | Naphthylenediamine derivative | Eiichi Miyamoto, Mikio Kakui, Yukikatsu Imanaka, Tadashi Sakuma, Maki Uchida | 1998-06-16 |
| 5600422 | Image-forming apparatus employing a reversal developing system | Toshiyuki Fukami, Masashi Tanaka, Masato Katsukawa | 1997-02-04 |
| 5550290 | Benzidine derivative and electrophotosensitive material using the same | Yasufumi Mizuta, Masashi Tanaka, Nariaki Muto, Toshiyuki Fukami, Mikio Kakui +4 more | 1996-08-27 |
| 5514508 | Electrophotosensitive material | Toshiyuki Fukami, Hiroshi Shiomi, Hirofumi Kawaguchi, Hisakazu Uegaito, Nariaki Muto +4 more | 1996-05-07 |