Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469968 | Varying the process of rewriting to extend the life of a information carrier | Gijsbert J. Van Den Enden, Johannes Hendrikus Maria Spruit, Johannes H. G. Jaegers | 2002-10-22 |
| 6285647 | Method and device for writing an optical record carrier | Roel Van Woudenberg, Hermanus Borg | 2001-09-04 |
| 6243339 | Method and device for writing optical record carriers | Johannes H. M. Spruit, Jeroen Jan Lambertus Horikx | 2001-06-05 |
| 6115340 | Modifying the recording process to extend the life of a rewritable information carrier | Gijsbert J. Van Den Enden, Johannes H. M. Spruit, Johannes H. G. Jaegers | 2000-09-05 |
| 6021109 | Optical recording medium | Johannes H. M. Spruit | 2000-02-01 |
| 5935672 | Reversible optical information medium | Guo-Fu Zhou, James Coombs | 1999-08-10 |
| 5876822 | Reversible optical information medium | Guofu Zhou, James Coombs | 1999-03-02 |
| 5802032 | Method and device for recording a mark having a substantially constant number of pulses per unit length independent of writing speed on an optical information carrier | Bernardus A. J. Jacobs, James Coombs, Johannes H. M. Spruit, Guofu Zhou | 1998-09-01 |
| 5302552 | Method of manufacturing a semiconductor device whereby a self-aligned cobalt or nickel silicide is formed | Alec Reader, Gerrit Jan van der Kolk | 1994-04-12 |
| 5104848 | Device and method of manufacturing a device | Andries R. Miedema, Gerrit Jan van der Kolk | 1992-04-14 |