Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6507557 | Optical recording medium and recording method therefor | Fumitaka Tsuji | 2003-01-14 |
| 4713590 | Control circuit for DC brushless motor producing constant output torque | — | 1987-12-15 |
| 4471272 | Circuit for controlling the speeds of two capstans | — | 1984-09-11 |
| 4455514 | Control circuit for a brushless DC motor | — | 1984-06-19 |
| 4429261 | Apparatus for controlling the tension of a cassette tape | — | 1984-01-31 |