Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4616274 | Tape end detecting device for extractable tape type cassette | — | 1986-10-07 |
| 4593327 | Color video signal recording and/or reproducing system | Akira Hirota | 1986-06-03 |
| 4504876 | Miniature type tape cassette | — | 1985-03-12 |