Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8521071 | Developer bearing member, developing apparatus, and image forming apparatus | Yukihide Ushio, Masahiro Okuda, Toshihiko Sugimoto | 2013-08-27 |
| 7031020 | Image processing method, apparatus and controller | Akio Aoki, Takao Aoki, Kaoru Seto, Seiji Sagara, Satoshi Shimizu +1 more | 2006-04-18 |
| 6874777 | Sheet feed apparatus, sheet separating member, sheet feed assembly and sheet separating assembly | Koichi Sano, Kenichi Kobayashi, Akira Yuza | 2005-04-05 |
| 6527484 | Helical tooth broach | Kazuyuki Nakamura, Yasushi Nogawa, Hidetaka Nakae | 2003-03-04 |
| 6430063 | Control switch for synchronous rectification circuit of DC-DC converter | Kazuo Kobayashi, Yoshiki Kubota | 2002-08-06 |
| 6374065 | Speed ratio between an image holding member and a developer carrier varies according to an image ratio | Tatsuya Kobayashi, Naoki Enomoto, Takashi Shibuya | 2002-04-16 |
| 6131010 | Rotatable member having elastic layer and fixing apparatus having said rotatable member | Takao Kume, Norio Hashimoto, Koichi Hiroshima, Tooru Saitou, Katsunori Takeuchi +2 more | 2000-10-10 |
| 6111664 | Image processing method, apparatus and controller | Akio Aoki, Takao Aoki, Kaoru Seto, Seiji Sagara, Satoshi Shimizu +1 more | 2000-08-29 |
| 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 | Kimio Nakahata, Masuo Yamazaki, Masami Takeda, Hiromichi Yamada, Tatsuya Nakamura +5 more | 2000-04-04 |
| 5999763 | Simultaneous cleaning of residual toner and toner image formation | Koichi Hiroshima | 1999-12-07 |
| 5823807 | Connector assembly with mechanism for confirmation of fitting of connector housing and method of attaching connector housing | Masashi Yamasaki, Kouichi Ogawa, Takashi Fujiwara, Hironori Yanagimoto, Tomoo Hamamoto | 1998-10-20 |
| 5809373 | Image forming apparatus which back-transfers residual toner from an intermediate transfer member to a photosensitive drum | Yasuo Yoda, Koichi Hiroshima, Shinichi Tsukida, Toru Kosaka | 1998-09-15 |
| 5732310 | Image forming apparatus having cleaning device for cleaning intermediate transfer member | Koichi Hiroshima, Shinichi Tsukida, Toru Kosaka, Yasuo Yoda | 1998-03-24 |
| 5701568 | Image forming apparatus having dielectric constant relationship between image bearing member, intermediate transfer member and contact transfer device | Koichi Hiroshima, Toru Kosaka, Yasuo Yoda | 1997-12-23 |
| 5659857 | Image forming method | Masuo Yamazaki, Koichi Tanigawa | 1997-08-19 |
| 5600431 | Image forming apparatus for forming color image with dry developer | Masami Takeda, Kimio Nakahata, Masuo Yamazaki, Hiromichi Yamada, Tatsuya Nakamura +5 more | 1997-02-04 |
| 5521683 | Image forming apparatus using constant voltage or constant current AC signal applied to developer bearing member, and control function in accordance with detected voltage or current of developer bearing member | Toshio Miyamoto, Akihiko Takeuchi, Kazuaki Ono, Minoru Matsuguma | 1996-05-28 |
| 5519471 | Developer carrying member utilizing oscillating bias having constant-voltage-DC component and constant-current AC component, and developing apparatus and image forming apparatus using same | Kimio Nakahata, Koichi Tanigawa, Toshio Miyamoto, Makoto Takeuchi | 1996-05-21 |
| 5493380 | Fixing device with means for limiting a distance between heating and pressing member | Tooru Saitou, Akio Nemoto, Koichi Tanigawa, Jun Saito, Yuzo Isoda | 1996-02-20 |
| 5259788 | Connector for wiring in a vehicle | Kouichi Ogawa | 1993-11-09 |
| 5253024 | Fixing apparatus with rectifier element | Koichi Okuda, Yoji Tomoyuki, Toshio Miyamoto, Junji Araya, Yukihiro Ohzeki +7 more | 1993-10-12 |
| 5202729 | Developing apparatus having a coated developing roller | Toshio Miyamoto, Yasushi Sato, Akihiko Takeuchi, Hiroshi Sasame, Hiroto Hasegawa +4 more | 1993-04-13 |
| 5185496 | Electrostatic latent image device having a coating layer provided on a developer carrying member | Keiji Okano, Toshio Miyamoto, Tatsunori Ishiyama | 1993-02-09 |
| 5177537 | Developing apparatus with elastic regulating member urged to a developer carrying member | Keiji Okano, Hiroto Hasegawa, Toshio Miyamoto, Tatsunori Ishiyama | 1993-01-05 |
| 5098842 | Medium, apparatus and method for cell separation | Toru Nakajima, Masahiro Sato, Sumiaki Tsuru | 1992-03-24 |