Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8508567 | Surface-emission laser array, optical scanning apparatus and image forming apparatus | Shunichi Sato, Akihiro Itoh, Hiroyoshi Shouji, Yoshinori Hayashi, Kei Hara +1 more | 2013-08-13 |
| 8441512 | Optical scanner and image forming apparatus addressing uneven birefringence distribution of a scanning lens | Hibiki Tatsuno, Nobuyuki Arai | 2013-05-14 |
| 8339696 | Optical scanning device and image forming apparatus | Naoki Miyatake, Yoshinori Hayashi, Takeshi Ueda, Naoto Watanabe | 2012-12-25 |
| 8223418 | Optical scanning device and image forming apparatus | Makoto Hirakawa | 2012-07-17 |
| 8199179 | Image forming apparatus and scanning unit to scan a target surface using light fluxes | Yoshinori Hayashi, Naoto Watanabe, Nobuaki Kubo | 2012-06-12 |
| 8179414 | Surface-emitting laser array, optical scanning device, and image forming device | Shunichi Sato, Yoshinori Hayashi | 2012-05-15 |
| 8134766 | Optical scanning device and image forming apparatus | — | 2012-03-13 |
| 8115794 | Optical scanning device and image forming apparatus | Masako Yoshii, Seizo Suzuki, Yoshinori Hayashi | 2012-02-14 |
| 8094179 | Light source device, optical scanning device, and image forming apparatus | — | 2012-01-10 |
| 8089498 | Surface-emission laser array, optical scanning apparatus apparatus and image forming apparatus | Shunichi Sato, Akihiro Itoh, Hiroyoshi Shouji, Yoshinori Hayashi, Kei Hara +1 more | 2012-01-03 |
| 8085457 | Light source system, optical scanner, image forming apparatus, and light-amount control method | Kenichi Takanashi | 2011-12-27 |
| 8081203 | Light-amount detecting device, light source device, optical scanning unit and image forming apparatus | Kensuke Masuda, Tomohiro Nakajima, Satoru Itoh, Masahiro Soeda, Yoshinori Hayashi | 2011-12-20 |
| 8077369 | Optical scanning device, optical writing device, and image forming apparatus | Kohji Sakai, Yoshinori Hayashi, Takeshi Ueda, Kenichiroh Saisho | 2011-12-13 |
| 8018637 | Optical scanning apparatus and image forming apparatus | — | 2011-09-13 |
| 7973990 | Optical scanning device, optical writing device, and image forming apparatus | Kohji Sakai, Yoshinori Hayashi, Takeshi Ueda, Kenichiroh Saisho | 2011-07-05 |
| 7956884 | Optical scanning device and image forming apparatus | — | 2011-06-07 |
| 7940292 | Optical scanning device and image forming apparatus | Yoshinori Hayashi | 2011-05-10 |
| 7924487 | Optical scanning device and image forming apparatus | Naoki Miyatake, Yoshinori Hayashi, Takeshi Ueda, Naoto Watanabe | 2011-04-12 |
| 7903135 | Optical scanning device and image forming apparatus for optimizing arrangement intervals in a main-scanning direction and a sub-scanning direction | Yoshinori Hayashi, Seizo Suzuki, Masaaki Ishida, Makoto Hirakawa | 2011-03-08 |
| 7800805 | Optical Scanning apparatus and image forming apparatus | Yoshinori Hayashi, Shunichi Sato | 2010-09-21 |
| 7738007 | Optical scanning device and method for adjusting errors | Makoto Hirakawa | 2010-06-15 |
| 7687762 | Monitoring device, light source device, optical scanning device, and image forming apparatus having an aperture member for shaping a beam diameter of a monitoring light beam | Naoto Watanabe | 2010-03-30 |
| 7672032 | Optical scanner and image forming apparatus using optical scanner | Yoshinori Hayashi, Kohji Sakai, Takeshi Ueda, Kenichiroh Saisho | 2010-03-02 |
| 7663657 | Optical scanning device and image forming apparatus | Yoshinori Hayashi, Takeshi Ueda, Kohji Sakai, Kenichiro Saisho | 2010-02-16 |
| 7626744 | Optical scanning device and image forming apparatus | Nobuyuki Arai, Yoshinori Hayashi | 2009-12-01 |