Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8077587 | Laser attachment device and optical pick-up device using the same | Ryoichi Kawasaki | 2011-12-13 |
| 7920804 | Developing device and image forming apparatus having the same | Yukihiro Mori | 2011-04-05 |