Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868821 | Optical pickup which includes a single objective lens having magnification equal to or greater than 3 and equal to or smaller than 5 | Masashi Ito, Hiroyuki Nakamura, Hiroshi Yasuda | 1989-09-19 |
| 4646283 | Objective lens driving apparatus for optical disc player | Masashi Ito, Hiroshi Yasuda, Hiroyuki Nakamura | 1987-02-24 |