Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8045900 | Developing device, process cartridge, and image forming apparatus that house a developing agent for forming an image | Tatsuya Kubo, Yoshitaka Fujinuma | 2011-10-25 |
| 8041269 | Development apparatus having two developer bearers and two development chambers | Tatsuya Kubo, Yoshitaka Fujinuma, Takashi Suzuki, Tsutomu Nakagawa, Masayoshi Nakayama | 2011-10-18 |
| 8027623 | Developing device, process cartridge, and image forming apparatus having a discharge port facing a section of a transport member without a screw part | Kentarou Nodera, Yoshitaka Fujinuma, Tatsuya Kubo | 2011-09-27 |
| 8014706 | Developing device, process cartridge, and image forming apparatus | Masayoshi Nakayama, Yoshitaka Fujinuma, Tatsuya Kubo | 2011-09-06 |
| 8010020 | Developing device and image forming apparatus equipped with the same | Emi Kita, Koichi Kato, Kiyonori Tsuda, Yuki Oshikawa, Yoshitaka Fujinuma | 2011-08-30 |
| 7904001 | Developing unit, process cartridge, and image forming apparatus having a plurality of conveyor members, a supply part, and a discharge part | Yoshitaka Fujinuma, Masayoshi Nakayama, Tatsuya Kubo | 2011-03-08 |
| 7826775 | Developing device and image forming apparatus | Masayoshi Nakayama, Yoshitaka Fujinuma, Tatsuya Kubo | 2010-11-02 |
| 7792466 | Image forming apparatus and developing device | Masayoshi Nakayama, Yoshitaka Fujinuma, Takashi Suzuki, Tsutomu Nakagawa, Tatsuya Kubo | 2010-09-07 |
| 7792465 | Developing device, process cartridge, and image forming apparatus | Tatsuya Kubo, Yoshitaka Fujinuma, Masayoshi Nakayama | 2010-09-07 |
| 7616915 | Image forming apparatus having a force-converting mechanism to detach a rotary body | Kazuhiro Shimojima, Yoshitaka Fujinuma, Yukinori Sakuma | 2009-11-10 |
| 7580657 | Developing device in image-forming device | Yoshitaka Fujinuma, Tsutomu Nakagawa, Masayoshi Nakayama | 2009-08-25 |
| 7224915 | Image forming apparatus and image forming unit | Shintaro Yamada, Kenji Asuwa, Hirobumi Ooyoshi, Tomofumi Yoshida | 2007-05-29 |
| 7016093 | Optical scanning apparatus and image forming apparatus | Takeshi Mochizuki, Kazutaka Setoma | 2006-03-21 |
| 6388791 | Optical scanner | Takeshi Mochizuki, Kazutaka Setoma | 2002-05-14 |
| 5745818 | Image formation method and image formation apparatus | Takao Kumasaka, Hisao Okada, Noboru Tokuyasu, Yuzuru Simazaki | 1998-04-28 |