Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7265886 | Optical scanner and image forming apparatus | Motonobu Yoshikawa, Yoshiharu Yamamoto | 2007-09-04 |
| 7256942 | Single lens element, light source device and scanning optical device | Michihiro Yamagata, Motonobu Yoshikawa, Yasuhiro Tanaka, Yoshiharu Yamamoto, Masaru Fujita +1 more | 2007-08-14 |
| 7173645 | Optical scan apparatus and color image formation apparatus | Motonobu Yoshikawa, Yoshiharu Yamamoto, Hajime Yamamoto, Masanori Yoshikawa, Akinobu Okuda | 2007-02-06 |
| 7023597 | Optical scanning device, image reading device provided with this, image forming device, and photographing device | Yoshiharu Yamamoto, Motonobu Yoshikawa, Hajime Yamamoto, Masanori Yoshikawa, Akinobu Okuda | 2006-04-04 |