Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823213 | Recording and reproducing disc driving apparatus | — | 1989-04-18 |
| 4712145 | Operating mechanism for small portable cassette tape player | Toshihisa Goto | 1987-12-08 |
| 4450495 | Portable acoustic device | — | 1984-05-22 |