Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7667868 | Optical scanning device and image forming apparatus | Yoshinori Hayashi | 2010-02-23 |
| 7245311 | Image forming apparatus | Yoshinori Hayashi, Yutaka Ebi | 2007-07-17 |
| 7072127 | Optical scanning lens, optical scanning device and image forming apparatus | Hiroyuki Suhara, Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi +5 more | 2006-07-04 |
| 6870652 | Optical scanning lens, optical scanning device and image forming apparatus | Hiroyuki Suhara, Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi +5 more | 2005-03-22 |
| 6803941 | Image forming apparatus with overlapped light fluxes forming a dot | Yoshinori Hayashi, Yutaka Ebi | 2004-10-12 |
| 6744545 | Optical scanning lens, optical scanning device and image forming apparatus | Hiroyuki Suhara, Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi +5 more | 2004-06-01 |
| 6400391 | Optical scanning lens, optical scanning device and image forming apparatus | Hiroyuki Suhara, Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi +5 more | 2002-06-04 |
| 6233081 | Optical scanning device, image forming apparatus and optical scanning method | Seizo Suzuki, Kenichi Takanashi | 2001-05-15 |
| 5311364 | Reading lens for scanner | Yuichiro Kanoshima, Kiichiro Nishina, Kohji Ichimiya, Yoshitsugu Kohno, Naomi Harada | 1994-05-10 |
| 4859044 | Large aperture lens system for use in a copier | — | 1989-08-22 |
| 4753522 | Plastic lens assembly for use in copying machines | Kiichiro Nishina | 1988-06-28 |
| 4738517 | Copying lens with a wide angle of view | Kiichiro Nishina | 1988-04-19 |
| 4711536 | Color separating lens composed of three lens units | — | 1987-12-08 |
| 4690518 | Wide angle copying lens system | Kiichiro Nishina | 1987-09-01 |
| 4647961 | Apparatus for reading the image information of a colored original | Yoshiaki Kammoto, Takahiro Asai, Masanori Saitoh, Shunji Asano | 1987-03-03 |
| 4643576 | Fringe scanning shearing interferometer | Toshio Kanoh | 1987-02-17 |