Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4982146 | Stepping motor driving device | — | 1991-01-01 |
| 4967292 | Head position controller for a disc storage unit | — | 1990-10-30 |
| 4875114 | System for detecting a reference track on a disk surface in a disc storage unit | — | 1989-10-17 |
| 4862051 | Stepping motor's negative-phase braking control device | — | 1989-08-29 |
| 4807063 | Head position control system with multiple servo areas staggered on various disks | — | 1989-02-21 |
| 4789909 | Method and apparatus for placing servo information at predetermined locations on a disc | — | 1988-12-06 |