Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5105403 | Optical information reading apparatus with waveguide and diffraction grating | Hidehiko Kando | 1992-04-14 |
| 5046820 | Objective lens driving apparatus | Seiichi Katoh, Akira Ikuma, Hiroshi Saito, Isao Shimizu | 1991-09-10 |