Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5608712 | Method and means for varying pit duty cycle and changing pit depth on an optical recordable medium | Richard L. Wilkinson, Shigang Li, John F. Browne, William W. Boyle | 1997-03-04 |