Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8358955 | Transfer device and image forming apparatus | Katsuhiro Echigo, Hajime Oyama | 2013-01-22 |
| 8121527 | Image forming apparatus having a neutralizing member of determined resistivity | Hajime Oyama, Katsuhiro Echigo | 2012-02-21 |
| 8081913 | Image forming apparatus | Hajime Oyama, Katsuhiro Echigo | 2011-12-20 |
| 7546074 | Image forming apparatus | Hajime Oyama, Katsuhiro Echigo | 2009-06-09 |
| 7308226 | Image forming method and apparatus with reduced reverse toner transfer | Ayako Iino | 2007-12-11 |
| 6829450 | Transfer bias applying method for an image forming apparatus and device for the same | Akihiro Sugino, Hiromi Ogiyama, Katsuya Kawagoe, Kohki Katoh, Mitsuru Takahashi +1 more | 2004-12-07 |
| 6741821 | Image forming apparatus, and process cartridge for use in image forming apparatus | Akihiro Sugino, Yuuji Sawai, Mitsuru Takahashi, Kohki Katoh, Katsuya Kawagoe +1 more | 2004-05-25 |
| 6701100 | Image forming apparatus including an image carrier and a polarization uniforming structure | Shinichi Namekata, Shigeru Watanabe | 2004-03-02 |
| 6618565 | Transfer bias applying method for an image forming apparatus and device for the same | Akihiro Sugino, Hiromi Ogiyama, Katsuya Kawagoe, Kohki Katoh, Mitsuru Takahashi +1 more | 2003-09-09 |
| 6184910 | Color image forming apparatus with polygonal mirror rotation phase control | Eiichi Sasaki, Tsuyoshi Deki, Nobuo Iwata, Takeshi Motohashi, Yutaka Shio +1 more | 2001-02-06 |
| 6134416 | Image forming apparatus having a transfer electrode | — | 2000-10-17 |
| 5740492 | Color image forming apparatus | Tsuyoshi Deki, Koichi Irie | 1998-04-14 |
| 5678161 | Paper conveyer of image forming apparatus which conveys paper to a fixing device | Shigeo Kurotaka, Nobuo Iwata, Shingo Katou, Takeshi Motohashi, Tsuyoshi Deki +1 more | 1997-10-14 |
| 5599645 | Image transfer method for an image forming apparatus | Nobuo Iwata, Tsuyoshi Deki, Takeshi Motohashi | 1997-02-04 |