Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9391150 | Semiconductor Device | Toru Oka | 2016-07-12 |
| 9331157 | Semiconductor device | Toru Oka | 2016-05-03 |
| 9123635 | Manufacturing method of semiconductor device | Toru Oka | 2015-09-01 |
| 7395011 | Image forming apparatus with cleaning device for removing remaining toner from outer surface of photosensitive member | — | 2008-07-01 |
| 6778796 | Driving mechanism for use in image forming apparatus | Masanobu Maeshima, Naoki Yamane, Masahiro Tsutsumi, Eiji Nimura, Akira Matayoshi +1 more | 2004-08-17 |
| 6483998 | Electrostatic image-forming apparatus controlled to compensate for film thinning | Hiroaki Shiba | 2002-11-19 |
| 6205314 | Developing roller with a coating layer, developer restricting mechanism and developing device incorporating same | Takahiko Murata, Masayuki Ishii, Seiji Kado | 2001-03-20 |
| 6025108 | Non-magnetic contacting one component-type development system | Atsushi Hujii, Hideki Taniguchi | 2000-02-15 |
| 5914208 | Electrophotographic photosensitive material | Toshiyuki Fukami, Ichiro Yamazato, Eiichi Miyamoto, Tohru Ueno, Hiroshi Mishima | 1999-06-22 |
| 5842104 | Image-forming device and a process unit therefor having a guide plate with multiple openings | Hiroyuki Hazama, Takashi Terada | 1998-11-24 |
| 5830615 | Naphthylenediamine derivative and electrophotosensitive material using the same | Eiichi Miyamoto, Mikio Kakui, Hideo Nakamori, Yukikatsu Imanaka, Tadashi Sakuma +4 more | 1998-11-03 |
| 5752132 | Process unit | Hiroyuki Hazama, Masaru Gotoh, Takashi Terada, Nobuhiro Nakajima, Hiroyuki Hamakawa | 1998-05-12 |
| 5750308 | Electrophotographic developing method using developing bias voltage based on light decay characteristics of photosensitive material | Mitsuji Tsujita, Takashi Terada, Takuji Terada, Ichiro Yamazato, Eiichi Miyamoto | 1998-05-12 |
| 5565963 | Image forming apparatus capable of changing the surface potential of a photosensitive member | Mitsuji Tsujita, Yuji Tanaka, Takashi Terada, Takuji Terada | 1996-10-15 |
| 5534980 | Electrophotographic image forming apparatus having a charge removing means | — | 1996-07-09 |
| 5530524 | Electrophotographic apparatus with photosensitive drum requiring multiple rotations for production of a copy image on one sheet and method of operating same | Mitsuji Tsujita, Keizo Kimoto, Ichiro Yamazato, Tomoki Tanaka | 1996-06-25 |
| 5530525 | Image forming apparatus | Mitsuji Tsujita, Masahiko Maeda, Kazuhiro Mizude, Tomohiro Tsutano, Masao Uyama +2 more | 1996-06-25 |
| 5260157 | Electrophotographic photosensitive element comprising a surface protective layer comprising an etherified melamine-formaldehyde resin | Yasufumi Mizuta, Akihiko Kawahara, Kaname Nakatani | 1993-11-09 |
| 5060022 | Image processing equipment for setting image density conditions according to temperature | Takeshi Yoshida | 1991-10-22 |
| 5024913 | Electrophotographic photosensitive material | Takeshi Yoshida, Kaname Nakatani, Toshiyuki Fukami | 1991-06-18 |