Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5991112 | Non-contact servotrack writing with phase sensitive detection | Hubert Song, John Tsai, Mervyn L. Hopson, Kam Fung Yan | 1999-11-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5991112 | Non-contact servotrack writing with phase sensitive detection | Hubert Song, John Tsai, Mervyn L. Hopson, Kam Fung Yan | 1999-11-23 |