Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7889409 | Optical scanning device and image forming apparatus using the same | — | 2011-02-15 |
| 7872664 | Optical scanning device including shutter member that closes or opens an emission window and image forming apparatus including the optical scanning device | Takeshi Yamakawa, Hiroshi Yoshizawa, Masanori Namba | 2011-01-18 |
| 7869101 | Image processing apparatus having enhanced controlling process for optical scanning unit | Takeshi Yamakawa, Hiroshi Yoshizawa | 2011-01-11 |