Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7031629 | Image forming apparatus which recovers toner by developing device | Takeshi Kawamura, Koichi Otaka, Yasushi Shimizu, Yasunori Chigono, Ken Nakagawa | 2006-04-18 |
| 6885832 | Image forming apparatus having speed-changeable image bearing body | — | 2005-04-26 |
| 6763203 | Image forming apparatus having transfer bias control function | Mahito Yoshioka, Yoji Tomoyuki, Ken Nakagawa | 2004-07-13 |
| 6738593 | Developing device with developer bearing member overlying developer containing chamber | Takeshi Kawamura, Tetsuya Sano, Ken Nakagawa, Shuji Moriya, Kenji Kanari | 2004-05-18 |
| 6459878 | Heating assembly, image-forming apparatus, and process for producing silicone rubber sponge and roller | Yoji Tomoyuki, Yusuke Nakazono, Ken Nakagawa, Satoru Taniguchi, Kazuo Kishino +4 more | 2002-10-01 |