Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5182691 | Magnetic head cleaning system for rotary head devices | Katsuhiko Watanabe, Nobutoshi Suzuki | 1993-01-26 |
| 4249746 | Tracking control for a video disc player | — | 1981-02-10 |