Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9989876 | Image forming apparatus and method for calculating a toner degradation rate | Mutsuki Morinaga, Tadashi Kasai, Jun Hitosugi, Takamasa Ozeki, Makoto Yasuda +6 more | 2018-06-05 |
| 8199392 | Light-scanning device and image-forming apparatus | Akira Fukushima | 2012-06-12 |
| 8169458 | Optical scanning device and image forming apparatus | Yukio Itami, Magane Aoki, Tomohiro Nakajima, Yoshinori Hayashi, Naoki Miyatake +3 more | 2012-05-01 |
| 8102411 | Optical scanner and image forming apparatus | Nobuyuki Arai, Yoshinori Hayashi, Nobuaki Kubo | 2012-01-24 |
| 7817177 | Optical scanning device and image forming apparatus | Yoshinori Hayashi, Kenichiroh Saisho, Yasuhiro Naoe, Hiroyuki Okuwaki, Ryouji Hirai | 2010-10-19 |
| 7800804 | Optical scanner and image forming apparatus | — | 2010-09-21 |
| 7782352 | Optical scanning device and image forming apparatus | — | 2010-08-24 |
| 7411712 | Optical scanner and image formation apparatus | Tomohiro Nakajima, Naoki Miyatake, Kohji Sakai | 2008-08-12 |
| 7295225 | Light source and light beam scanning unit | — | 2007-11-13 |
| 6839157 | Method and apparatus for multi-beam optical scanning capable of effectively adjusting a scanning line pitch | Nobuaki Ono, Tomohiro Nakajima, Akihisa Itabashi, Kenichi Takanashi | 2005-01-04 |
| 6686946 | Density unevenness suppressing image forming apparatus and method | Koji Masuda, Kazuyuki Shimada, Tetsuro Saitoh, Masahiro Ito, Katsuyuki Kitao +1 more | 2004-02-03 |
| 6376837 | Optical scanning apparatus and image forming apparatus having defective light source detection | Akihisa Itabashi, Magane Aoki, Akira Kojima, Hiroyuki Suhara, Nobuaki Kubo | 2002-04-23 |