Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8169458 | Optical scanning device and image forming apparatus | Yukio Itami, Tomoya Ohsugi, Tomohiro Nakajima, Yoshinori Hayashi, Naoki Miyatake +3 more | 2012-05-01 |
| RE40109 | Multi-beam optical scanner | Kohji Sakai | 2008-02-26 |
| 7271938 | Method and apparatus for optical scanning capable of efficiently reducing an image surface distortion | Atsushi Kawamura | 2007-09-18 |
| 7256815 | Image forming method, image forming apparatus, optical scan device, and image forming apparatus using the same | Seizo Suzuki, Masaaki Ishida, Atsufumi Omori, Yasuhiro Nihei | 2007-08-14 |
| 7215354 | Scanning optical system, optical scanning device and image forming apparatus | Kohji Sakai, Seizo Suzuki, Hiromichi Atsuumi | 2007-05-08 |
| 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 |
| 7006120 | Multi-beam optical scanning apparatus and image forming apparatus | Kohji Sakai, Yoshinori Hayashi, Seizo Suzuki, Hiromichi Atsuumi | 2006-02-28 |
| 6999208 | Optical scanner, optical scanning method, scanning image forming optical system, optical scanning lens and image forming apparatus | Seizo Suzuki, Hiromichi Atsuumi, Kohji Sakai, Hiroyuki Suhara | 2006-02-14 |
| 6903855 | Multi-beam scanning method, apparatus and multi-beam light source device achieving improved scanning line pitch using large light emitting points interval | Kohji Sakai | 2005-06-07 |
| 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 |
| 6801351 | Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus | Seizo Suzuki, Hiromichi Atsuumi, Kohji Sakai | 2004-10-05 |
| 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 |
| 6606179 | Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus | Seizo Suzuki, Hiromichi Atsuumi, Kohji Sakai | 2003-08-12 |
| RE38195 | Multi-beam optical scanner | Kohji Sakai | 2003-07-22 |
| 6509995 | Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus | Seizo Suzuki, Hiromichi Atsuumi, Kohji Sakai | 2003-01-21 |
| 6448998 | Scanning and imaging lens, optical scanning device and image forming apparatus | Seizo Suzuki, Hiromichi Atsuumi, Kohji Sakai | 2002-09-10 |
| 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 |
| 6388792 | Optical scanning device and image forming apparatus | Hiromichi Atsuumi, Seizo Suzuki, Kohji Sakai | 2002-05-14 |
| 6376837 | Optical scanning apparatus and image forming apparatus having defective light source detection | Akihisa Itabashi, Akira Kojima, Hiroyuki Suhara, Nobuaki Kubo, Tomoya Ohsugi | 2002-04-23 |
| 6366384 | Multi-beam scanning method, apparatus and multi-beam light source device achieving improved scanning line pitch using large light emitting points interval | Kohji Sakai | 2002-04-02 |
| 6359717 | Optical scanning apparatus and scanning image forming lens | Seizo Suzuki, Kobji Sakai | 2002-03-19 |
| 6348989 | Scanning image forming lens and optical scanning apparatus | Kohji Sakai | 2002-02-19 |
| 6348988 | Scanning image forming lens and optical scanning apparatus | Kohji Sakai | 2002-02-19 |
| 6347004 | Optical scanning apparatus and scanning image forming lens | Seizo Suzuki, Kohji Sakai | 2002-02-12 |
| 6266174 | Multi-beam scanning apparatus with controlled scan line bow | — | 2001-07-24 |