Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4344164 | Optical device for access to a track carried by a data carrier and optical memory system incorporating such a device | Dominique Leterme | 1982-08-10 |
| 4334300 | Stigmatic optical device and an optical recording head equipped with said device | Louis Arquie, Jean-Claude Lehureau, Michel Thirouard, Jean-Pierre Le Merer, Dominique Leterme | 1982-06-08 |
| 4321701 | Device for displacing the reading head of a video disc in radial and vertical directions | Louis Arquie | 1982-03-23 |
| 4315723 | Device for molding information-carrying disks | Robert Antoine, Gerard Robin | 1982-02-16 |
| 4275275 | Recording device for optically recording information on a carrier with a light spot and a positional control of the spot | Jean-Claude Lehureau | 1981-06-23 |
| 4203133 | Optical player with half wave plate | Jean-Claude Lehureau | 1980-05-13 |