Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682077 | Display device and cathode ray tube | Peterus H. C. Hanssen, Martinus A. M. Van Den Heuvel, Henry A. Schweitz, Adrianus L. G. Van Den Eeden | 1997-10-28 |
| 4957663 | Method of manufacturing optical components | Renso J. M. Zwiers, Herman M. A. Amendt | 1990-09-18 |
| 4756972 | Laminated optical component | Johan Kloosterboer, Robert G. Gossink, Gerardus M. M. Van De Hei | 1988-07-12 |
| 4738516 | Optical element having an aspheric surface | Albert Smid, Herman M. A. Amendt | 1988-04-19 |
| 4623496 | Method of manufacturing an optical element having an aspheric surface | Albert Smid, Herman M. A. Amendt | 1986-11-18 |
| 4489408 | Beam-splitting prism, method of manufacturing said prism, and optical read and/or write unit provided with said prism | Herman M. A. Amendt | 1984-12-18 |