Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5061960 | Preexposure light control system for a photocopier | Kouji Ito | 1991-10-29 |
| 4884100 | Density measuring device for originals in an enlarging/reducing projector | Yuji Hayashi | 1989-11-28 |
| 4816875 | Slit illumination system for copying machine and the like | Katsuhiko Takeda, Kazuyuki Yoshida | 1989-03-28 |