Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661704 | Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit | — | 1997-08-26 |
| 5661710 | Record carrier, recording device and reading device | Josephus Arnoldus Henricus Maria Kahlman | 1997-08-26 |
| 5633851 | A scanning device producing a first and a second scanning spot which move in different directions and an apparatus containing that device which uses the first spot for reading and/or recording and the second spot to monitor such reading and/or recording | Josephus Arnoldus Henricus Maria Kahlman | 1997-05-27 |
| 5612945 | Device for recording and/or reading information by means of a radiation beam, plate-shaped element suitable for use in the device, and disc player comprising the device | — | 1997-03-18 |