Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5013911 | Optical sensor unit with sealed optical element and cable connector | Yoshinori Koshida, Shin-ichi Suto | 1991-05-07 |
| 4985636 | Medium detecting system with automatic compensation for sensor variations | Tsutomu Fukui, Hideto Koike | 1991-01-15 |