Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10452012 | Cylindrical fixing member, fixing device and image forming apparatus | Masatake Usui, Takaaki Tsuruya, Yasunari Kobaru, Akira Kato, Hiroki Eguchi +8 more | 2019-10-22 |
| 9507288 | Image forming apparatus that detects electrostatic latent image for correction | Kentaro Yamashita, Akinobu Hirayama, Takateru Ohkubo, Kenji Watanabe, Hiromitsu Kumada +3 more | 2016-11-29 |
| 9037020 | Image forming apparatus | Eiji Uekawa, Yasunari Kobaru, Takahiro Uchiyama | 2015-05-19 |
| 8989639 | Image forming apparatus having toner density control | Yasunari Kobaru, Takahiro Uchiyama, Yoshiki Kudo, Takeshi Kawamura, Tatsuaki Orihara +2 more | 2015-03-24 |
| 8675032 | Image forming apparatus | Yoshiki Kudo, Hiroshi Mano, Toshikazu Tsuchiya, Atsushi Ogata, Naoto Tsuchihashi +1 more | 2014-03-18 |
| 7043183 | Image forming apparatus | Kenichi Iida, Hisahiro Saito | 2006-05-09 |
| 6987939 | Image forming apparatus with two cleaning electric fields for transferring developer from a developer charging device onto an image bearing member | Tatsunori Ishiyama, Kenichi Iida | 2006-01-17 |
| 6980749 | Image forming apparatus with control feature based on transfer material discrimination | Tatsunori Ishiyama, Yoichiro Maebashi, Hiroshi Kawaguchi, Kenichi Iida, Yuki Nishizawa | 2005-12-27 |
| 6956594 | Image forming apparatus including two image bearing members and featuring a variable dot image | Kenichi Iida, Tatsunori Ishiyama | 2005-10-18 |
| 6947695 | Image forming apparatus including two image forming members and featuring a dot-shaped image | Kenichi Iida, Tatsunori Ishiyama | 2005-09-20 |
| 6834177 | Image forming apparatus having transfer roller forming a nip with image bearing belt and regulating member for same | Hisahiro Saito, Kenichi Iida | 2004-12-21 |
| 6498907 | Image forming apparatus including transfer means with transfer bias output controlled by calculated impedance at predetermined voltage/current | — | 2002-12-24 |
| 6314264 | Image forming apparatus | Kenichi Iida, Tomoaki Nakai | 2001-11-06 |
| 6047149 | Image forming apparatus having a rotatable first developing member, and a fixed second developing member having a housing partially covering the first developing member | Katsuhiko Nishimura, Kimio Nakahata, Masuo Yamazaki, Masami Takeda, Hiromichi Yamada +5 more | 2000-04-04 |
| 5809373 | Image forming apparatus which back-transfers residual toner from an intermediate transfer member to a photosensitive drum | Katsuhiko Nishimura, Koichi Hiroshima, Shinichi Tsukida, Toru Kosaka | 1998-09-15 |
| 5732310 | Image forming apparatus having cleaning device for cleaning intermediate transfer member | Koichi Hiroshima, Katsuhiko Nishimura, Shinichi Tsukida, Toru Kosaka | 1998-03-24 |
| 5714106 | Process of producing a device including a molded-in insert and fluoroplastic surfacing material | Akihiko Hirota, Masanori Aoki, Hitoshi Oda | 1998-02-03 |
| 5701568 | Image forming apparatus having dielectric constant relationship between image bearing member, intermediate transfer member and contact transfer device | Koichi Hiroshima, Katsuhiko Nishimura, Toru Kosaka | 1997-12-23 |
| 5600431 | Image forming apparatus for forming color image with dry developer | Masami Takeda, Kimio Nakahata, Masuo Yamazaki, Katsuhiko Nishimura, Hiromichi Yamada +5 more | 1997-02-04 |
| 5128092 | Method for shaping tetrafluoroethylene resin pipe | Hiroshi Asaumi, Takehiro Yoshida, Tomokazu Hattori | 1992-07-07 |