Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10942480 | Image forming apparatus with detection of abnormality of power source device or an optical scanning device | — | 2021-03-09 |
| 10795279 | Image forming apparatus having optical print heads | — | 2020-10-06 |
| 10126675 | Image forming apparatus | — | 2018-11-13 |
| 9244375 | Image forming apparatus | — | 2016-01-26 |
| 8619318 | Image forming apparatus with image scaling ratio setting feature | — | 2013-12-31 |
| 8213045 | Correction of image data scaling in screen area | — | 2012-07-03 |
| 7903136 | Scanning optical apparatus and image forming apparatus | — | 2011-03-08 |
| 7796658 | Drive circuit and drive method for semiconductor light source | — | 2010-09-14 |
| 7426226 | Drive circuit and drive method for semiconductor light source | — | 2008-09-16 |
| 7417660 | Image forming apparatus and image forming method | Hajime Kaji, Naoto Yamada, Yoshitaka Yamazaki, Junichi Noguchi, Takayuki Kawakami +3 more | 2008-08-26 |
| 7280131 | Image formation device | Naoto Yamada, Hajime Kaji, Yoshitaka Yamazaki, Junichi Noguchi, Takayuki Kawakami +3 more | 2007-10-09 |
| 7256812 | Laser exposing apparatus | — | 2007-08-14 |
| 7196717 | Image forming apparatus, control method therefor, and program for implementing the control method | Akihito Mori, Hajime Kaji, Naoto Yamada, Yoshitaka Yamazaki, Junichi Noguchi +3 more | 2007-03-27 |
| 7170543 | Image formation device | Naoto Yamada, Hajime Kaji, Yoshitaka Yamazaki, Junichi Noguchi, Takayuki Kawakami +3 more | 2007-01-30 |
| 7042481 | Laser exposing apparatus | — | 2006-05-09 |
| 6236579 | Power supply apparatus, its control method and image formation apparatus | Michiko Watanabe | 2001-05-22 |
| 5621630 | Power source apparatus of image forming apparatus | Koji Suzuki, Hiroshi Saito | 1997-04-15 |
| 5444519 | Electrophotographic image forming apparatus and its high voltage power source device | Junichi Kimizuka, Takeji Gima, Akihiro Nakamura | 1995-08-22 |
| 5414862 | Apparatus for controlling a power source | Koji Suzuki, Tadashi Ishikawa, Joji Nagahira | 1995-05-09 |
| 5412455 | Charging device, image forming apparatus and detachably mountable process cartridge having a constant voltage power source feature | Kazuaki Ono, Koichi Tanigawa, Akihiko Takeuchi, Toshio Miyamoto | 1995-05-02 |
| 5365316 | Electrophotographic image forming apparatus and its high voltage power source device | Junichi Kimizuka, Takeji Gima, Akihiro Nakamura | 1994-11-15 |
| 4980811 | Power source apparatus | Koji Suzuji, Joji Nagahira | 1990-12-25 |