Issued Patents All Time
Showing 25 most recent of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6745946 | Device for scanning an electromagnetically suspended information carrier | Josephus Arnoldus Henricus Maria Kahlman, Willem Gerard Ophey | 2004-06-08 |
| 6649093 | Method of manufacturing an optically scannable information carrier | Helmar Van Santen | 2003-11-18 |
| 6594205 | Optical scanning device with parallel-controlled actuators | Jan W. Aarts, Jan P. Baartman | 2003-07-15 |
| 6262953 | Apparatus for reading and/or writing information from/on a recording medium | Josephus Arnoldus Henricus Maria Kahlman | 2001-07-17 |
| 6130418 | Optical scanning unit having a main lens and an auxiliary lens | Marcus J. H. Willems Van Dijk | 2000-10-10 |
| 6118747 | Scanning device for optical discs | — | 2000-09-12 |
| 5995269 | Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit | — | 1999-11-30 |
| 5825740 | Device for scanning information tracks on a record carrier | Josephus Arnoldus Henricus Maria Kahlman | 1998-10-20 |
| 5802033 | Optical apparatus for scanning a tape-shaped record carrier | — | 1998-09-01 |
| 5789852 | Rapidly scanning cathode-ray tube laser | Hugo Cornelissen, Cornelis J. Savert, Gerardus A. H. M. Vrijssen | 1998-08-04 |
| 5789743 | Optical scanning device, and apparatus provided with such a device, employing scanning element having reflective measuring reference face | — | 1998-08-04 |
| 5784168 | Position detection system for an object with at least five degrees of freedom | Willem Gerard Ophey | 1998-07-21 |
| 5661704 | Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit | — | 1997-08-26 |
| 5661710 | Record carrier, recording device and reading device | Josephus Arnoldus Henricus Maria Kahlman | 1997-08-26 |
| 5633851 | A scanning device producing a first and a second scanning spot which move in different directions and an apparatus containing that device which uses the first spot for reading and/or recording and the second spot to monitor such reading and/or recording | Josephus Arnoldus Henricus Maria Kahlman | 1997-05-27 |
| 5612945 | Device for recording and/or reading information by means of a radiation beam, plate-shaped element suitable for use in the device, and disc player comprising the device | — | 1997-03-18 |
| 5581534 | Device for realizing a longitudinal pattern of substantially parallel tracks in a record carrier which controls movement of the record carrier on the basis of trackpitch | Josephus Arnoldus Henricus Maria Kahlman | 1996-12-03 |
| 5579295 | Scanning device and optical player comprising the scanning device | — | 1996-11-26 |
| 5548114 | Optical scanning device for scanning a record carrier with a scanning spot which deviates in a direction transverse to the scanning direction by an amount less than a trace pitch because of vibration | Josephus Arnoldus Henricus Maria Kahlman | 1996-08-20 |
| 5524004 | Suspension for the optical head of a disc scanner with mechanical limiting of objective lens | — | 1996-06-04 |
| 5521464 | Rapidly scanning cathode ray tube/scanning laser | Gerardus A. H. M. Vrijssen, Hugo Cornelissen, Cornelis J. Savert | 1996-05-28 |
| 5337298 | Rapid access optical scanner having a long optical element | — | 1994-08-09 |
| 5289442 | Optical scanner with a long fast access stroke | — | 1994-02-22 |
| 5245182 | Optical recording and/or reproducing apparatus with optical sensing of scanning mirror position | Willem G. Opheij | 1993-09-14 |
| 5235583 | Optical scanning for record carriers adapted for reading with differing wavelengths | Adrianus P. J. M. Jongenelis | 1993-08-10 |