Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7542381 | Method and device for track counting in optical recording media | — | 2009-06-02 |
| 6363044 | Automatically adapting forward or reversed biased photodiode detection circuit | Steffen Lehr, Friedheim Zucker | 2002-03-26 |
| 6219316 | Recording or reproducing device for recording media having different track spacings | Lieu-Kim Dang, Heinz-Joerg Schroeder | 2001-04-17 |
| 5953304 | Optical disc recording or playback device with corrected focus optical scanning | Lieu-Kim Dang | 1999-09-14 |