Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8050612 | Fixing device having a temperature-uniforming roller | Satoshi Kinouchi, Osamu Takagi, Kazuhiko Kikuchi, Toshihiro Sone | 2011-11-01 |
| 8005402 | Charging device, image forming apparatus and charging method | Takeshi Watanabe, Masashi Takahashi | 2011-08-23 |
| 7885579 | Charging device, image forming apparatus and charging method | Takeshi Watanabe, Masashi Takahashi | 2011-02-08 |
| 7796918 | Image forming apparatus and its cleaner unit, and cleaner unit replacement method of the image forming apparatus | Takeshi Watanabe, Masashi Takahashi | 2010-09-14 |
| 7720426 | Cleaning device and image forming apparatus using the same | Takeshi Watanabe | 2010-05-18 |
| 7551884 | Cleaning apparatus and image forming apparatus | Takeshi Watanabe, Masashi Takahashi | 2009-06-23 |
| 7539431 | Image forming apparatus and techniques for collecting toner | Takeshi Watanabe, Masashi Takahashi | 2009-05-26 |
| 7502572 | Image forming apparatus and image forming method | Takeshi Watanabe, Masashi Takahashi | 2009-03-10 |
| 7317883 | Color image forming apparatus with at least two stages of image forming units | Takeshi Watanabe, Masashi Takahashi | 2008-01-08 |
| 4965598 | Printing apparatus | Toshihiro Kasai | 1990-10-23 |