Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364097 | Tape speed control device | Jacob De Boer, Friedrich Sommer | 1982-12-14 |
| 4309730 | Method of reading and/or writing information and apparatus for carrying out the method | — | 1982-01-05 |
| 4306261 | Method and apparatus for recording helical scan information and tracking signals | Hendrik J. Bergmans | 1981-12-15 |
| 4303953 | Method of positioning reproducing elements and device for carrying out the method | — | 1981-12-01 |
| 4297733 | Method of controlling the position of a write or read head and a device for carrying out the method | — | 1981-10-27 |
| 4237500 | Method of controlling the position of a write-read head and device for carrying out the method | — | 1980-12-02 |