Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8073375 | Fixing unit and image forming apparatus having the same | Kazuhiro Wakamatsu, Katsumi Kumada | 2011-12-06 |
| 7970311 | Developing device and image forming apparatus using the same | Kenji Nakamura, Yuichiro Suzuki, Katsumi Kumada, Shoji Takeya | 2011-06-28 |