Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028305 | Process for producing magneto-optic recording medium | Richard F. Willson | 1991-07-02 |
| 4950556 | Magneto-optic recording medium | Richard F. Willson | 1990-08-21 |
| 4556893 | Optical recording medium of high sensitivity | Thomas A. Rinehart, Richard F. Willson | 1985-12-03 |