Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5339306 | Detecting interferential diffraction of a reflected beam from a polymer liquid crystal recording medium | Kazuo Yoshinaga, Toshikazu Ohnishi | 1994-08-16 |
| 5299059 | Plural-beam optical head including a uniaxial crystal right triangular prism beam divider | — | 1994-03-29 |