Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7623280 | Optical scanning device and image forming apparatus | Makoto Hirakawa, Yoshinori Hayashi | 2009-11-24 |
| 7586661 | Optical scanning device and image forming apparatus | — | 2009-09-08 |
| 7554708 | Optical scanning device and image forming apparatus | Kohji Sakai, Yoshinori Hayashi | 2009-06-30 |
| 7545547 | Scanning unit and image forming apparatus | Yoshinori Hayashi, Nobuaki Kubo, Naoto Watanabe | 2009-06-09 |
| 7443558 | Optical scanning device and image forming apparatus | Kohji Sakai, Yoshinori Hayashi | 2008-10-28 |
| 7417777 | Optical scanning device and image forming apparatus | Kenichiroh Saisho, Yoshinori Hayashi, Takeshi Ueda, Kohji Sakai | 2008-08-26 |
| 7218432 | Optical scanning apparatus and image forming apparatus | Yoshinori Hayashi | 2007-05-15 |