Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9188937 | Image forming apparatus having a photoreceptor refresh unit to detect a deteriorated photoreceptor drum and perform a photoreceptor-refresh control process | — | 2015-11-17 |
| 7457573 | Image forming device having a conductive member with separation needles | — | 2008-11-25 |
| 7336918 | Image forming device having a drum separation device | — | 2008-02-26 |
| 5750308 | Electrophotographic developing method using developing bias voltage based on light decay characteristics of photosensitive material | Nariaki Tanaka, 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 | Nariaki Tanaka, Yuji Tanaka, Takashi Terada, Takuji Terada | 1996-10-15 |
| 5530524 | Electrophotographic apparatus with photosensitive drum requiring multiple rotations for production of a copy image on one sheet and method of operating same | Keizo Kimoto, Ichiro Yamazato, Nariaki Tanaka, Tomoki Tanaka | 1996-06-25 |
| 5530525 | Image forming apparatus | Masahiko Maeda, Kazuhiro Mizude, Tomohiro Tsutano, Masao Uyama, Nariaki Tanaka +2 more | 1996-06-25 |
| 5128229 | Electrophotosensitive material and method of manufacturing the same | Masato Katsukawa, Keizo Kimoto, Satoru Miura | 1992-07-07 |
| 4882253 | Organic laminated photosensitive material of positive charging type | Yoshiaki Kato, Masashi Tanaka, Keizo Kimoto, Hirotsugu Nishikawa, Mika Kawaguchi | 1989-11-21 |