Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671052 | Optical encoder | Eiji Yamamoto | 1997-09-23 |
| 5233595 | Optical pickup including waveguide light intensity detection means for controlling a position/intensity of a semiconductor laser | — | 1993-08-03 |