Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6313966 | Cassette tape rotation control mechanism | — | 2001-11-06 |
| 5892639 | Dual head azimuth alignment mechanism in an autoreverse car audio device | — | 1999-04-06 |
| 5886849 | Mechanism for lifting a cassette holder in a car audio player | — | 1999-03-23 |
| 5883753 | Pinch roller switching mechanism of an auto reverse car audio device for safely fixing a selected pinch roller | — | 1999-03-16 |
| 5771144 | Cleaning device for a contact surface of a printed circuit board | — | 1998-06-23 |
| 5758839 | Reel of a tape player | — | 1998-06-02 |