Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9007671 | Light-quantity control apparatus and optical apparatus | Takahito Yoshizawa | 2015-04-14 |
| 7705281 | Image forming apparatus with impact applying unit and detecting unit for detecting sheet information corresponding to impact force | Takehiko Kawasaki, Norio Kaneko, Naoaki Maruyama | 2010-04-27 |
| 7304291 | Information detecting device, sheet material processing apparatus equipped with information detecting device, and signal output device | Takehiko Kawasaki, Norio Kaneko, Naoaki Maruyama | 2007-12-04 |
| 6618708 | Processing system for charge request data | Yoshitsugu Sakamoto, Shinsuke Kawahara, Hideto Nishizawa, Haruro Sato, Toshiyuki Furuya +3 more | 2003-09-09 |
| 6185544 | Processing system for charge request data | Yoshitsugu Sakamoto, Shinsuke Kawahara, Hideto Nishizawa, Haruro Sato, Toshiyuki Furuya +3 more | 2001-02-06 |
| 5872579 | Ink-jet printing method and apparatus therefor | Toshio Hagiwara, Tadashi Arai | 1999-02-16 |