Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5021877 | Optical image reading apparatus capable of reading multi-colored original | Michio Tsuchiya, Shuji Otsuka, Takayuki Matsumoto, Eiichi Ohta, Hakudai Kondo +6 more | 1991-06-04 |
| 5016117 | Optical reader having apparatus for discrimination between dither-matrix and non-dither-matrix reading areas, and/or means for determining light emitter drive power values by using reference reflector surface | Takayuki Matsumoto, Shuji Otsuka, Tetsuo Harano, Suzuyo Murai, Kouichi Mino +3 more | 1991-05-14 |