Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7345438 | Electromagnetic driver | — | 2008-03-18 |
| 6090349 | Diffuser | — | 2000-07-18 |
| RE32980 | Device for rhythmically driving an electromechanical vibrator | Nagatoshi Tsunoda | 1989-07-11 |
| RE32785 | Audio-frequency electromechanical vibrator | — | 1988-11-15 |
| 4720868 | Dynamic transducer device | — | 1988-01-19 |
| 4674743 | Athletic training unit with musical rhythm reproducing speaker and exerciser's pulse detecting means | — | 1987-06-23 |
| 4635287 | Audio-frequency electromechanical vibrator | — | 1987-01-06 |
| 4630519 | Device for rhythmically driving an electromechanical vibrator | Nagatoshi Tsunoda | 1986-12-23 |