Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4520410 | Scan tracking apparatus for helical scan video tape recorder | Toru Sekiguchi | 1985-05-28 |
| 4218639 | Tape tension control for tape recording and/or reproducing system | — | 1980-08-19 |
| 4213583 | Reel drive motor control system for cassette/cartridge tape recorders | Akira Mitani | 1980-07-22 |