Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309425 | Signal processing circuit for optical disk apparatus | Mikio Yamamuro | 1994-05-03 |
| 5306903 | Objective lens position detecting system capable of adjusting amounts of radiation | Mikio Yamamuro | 1994-04-26 |