Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8482539 | Electronic pen system | Toshiyuki Ogawa, Kazuhisa Sakamoto, Tatsuhito Ueno, Yuuji Toyomura | 2013-07-09 |
| 6642951 | Optical scanning device used in a tandem system color image forming apparatus | — | 2003-11-04 |
| 6473105 | Optical scanning apparatus for preventing color misregistration | Yukinori Hara | 2002-10-29 |