Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671106 | Matrix magnetic recording/reading head | — | 1997-09-23 |
| 5659536 | Optical storage method and device for storing and reading digital information | Christian Maillot, Jean-Pierre Huignard, Paul-Louis Meunier, Claude Puech | 1997-08-19 |
| 5657304 | Optical recording medium with a diffraction grating layer | — | 1997-08-12 |