Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4577101 | Shaft encoder with an optical system comprising two straight-line-generatrix surfaces | Joannes Gregorius Bremer | 1986-03-18 |
| 4464741 | Optical focusing-error detection device | — | 1984-08-07 |
| 4375088 | Optically readable record carrier with track variations which provide clock and tracking signals and apparatus for recording and/or reproducing data from such a record carrier | Maarten R. de Haan, Leopold H. Hissel | 1983-02-22 |
| 4319280 | Apparatus for converting cinematographic pictures into video signals | Jan Peter Roos, Adrianus Cornelius Van Kasteren | 1982-03-09 |