Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679429 | Dual layer optical medium having partially reflecting thin film layer | — | 1997-10-21 |
| 5648163 | Magneto-optic recording medium having magneto-optic film layers separated by yttrium oxide | — | 1997-07-15 |
| 5640382 | Dual layer optical medium having partially reflecting metal alloy layer | Jeffrey M. Florczak | 1997-06-17 |