Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817076 | Electro-optical scanning device having bridge members through tracking coils | Ghislanus M. A. M. Aldenhoven | 1989-03-28 |
| 4783775 | Driver for an objective of an optical scanning unit | Wilhelmus A. H. Gijzen, Leonhard Honds, Karl-Hanns Meyer, Gerard E. Van Rosmalen | 1988-11-08 |
| 4734899 | Optical scanning unit for projecting a beam onto an optical record carrier with positional control using sets of three coils with each set connected using two amplifiers | — | 1988-03-29 |
| 4679185 | Pivotal-arm device for a disc scanning unit | — | 1987-07-07 |
| 4661944 | Optical recording/playback apparatus having a focusing control system with reduced spot-offset sensitivity | — | 1987-04-28 |
| 4615585 | Optical focusing device | Johannes J. M. Schoenmakers | 1986-10-07 |