Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5995227 | Method and interference microscope for microscoping an object in order to obtain a resolution beyond the diffraction limit (high resolution) | Robert Masselink, Hans-Hermann Schreier | 1999-11-30 |
| 5144131 | Device for optically scanning an information plane detecting border portions of light beam | Willem G. Opheij, Henricus M. M. Kessels | 1992-09-01 |
| 4850673 | Optical scanning apparatus which detects scanning spot focus error | Henricus M. M. Kessels | 1989-07-25 |
| 4800547 | Optical record carrier scanning apparatus with scanning beam focus error detection | Henricus M. M. Kessels | 1989-01-24 |
| 4427261 | Optical transmission system having reduced modal noise | Giok D. Khoe | 1984-01-24 |