Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5293370 | Method and apparatus for creating optical disc masters | Robert C. Beauchamp, Jim Norton, David G. Loeppky | 1994-03-08 |
| 5283159 | Optical recording medium and method for improved pit geometry and increased laser tracking | James R. Norton, David G. Loeppky, Robert C. Beauchamp, Daniel Burkett | 1994-02-01 |
| RE34506 | Product and process for manufacturing an optical disc master | David G. Loeppky, James R. Norton, Bruce E. Del Mar | 1994-01-11 |