Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5477402 | Disk file with multiplexed servo system | Anthony R. Hearn | 1995-12-19 |
| 5339204 | System and method for servowriting a magnetic disk drive | David T. James, Anthony Leonard | 1994-08-16 |
| 4578723 | Head positioning system with automatic gain control | Alan J. Betts | 1986-03-25 |