Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6101298 | Optical switching device | Ralph M. N. Hanzen, Peter Alexander Duine, Reiner Maria Jungblut, Cornelis Draijer, Freddy Roozeboom +1 more | 2000-08-08 |
| 5952094 | Magneto-optical recording medium | Hans Willem Van Kesteren, Wouter Bastiaan Zeper, Johannes M. Kerkhof | 1999-09-14 |
| 5691865 | Magnetic device and method for locally controllably altering magnetization direction | Mark Thomas Johnson, Jelto W. Smits | 1997-11-25 |
| 5109375 | Record carrier for thermo-magnetic recording and magneto-optical readout of information | Franciscus J. A. M. Greidanus, Peter Francis Carcia, Wouter Bastiaan Zeper, Willem F. Godlieb | 1992-04-28 |
| 4678721 | Magnetic recording medium | Henricus Johannes George Draaisma, Alexander Kahle | 1987-07-07 |