Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5073710 | Optical displacement detector including a displacement member's surface having a diffractive pattern and a holographic lens pattern | Shigekazu Nakamura, Atsushi Omura | 1991-12-17 |
| 5062096 | Optical head and tracking method using same | — | 1991-10-29 |
| 5017768 | Optical focusing control apparatus | — | 1991-05-21 |
| 4664493 | Photographic shutter | — | 1987-05-12 |