Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7463227 | Display device comprising a light guide | — | 2008-12-09 |
| 6956332 | Display device comprising a light guide | Pierre Cobben, Johannes Marra | 2005-10-18 |
| 6908217 | Display device comprising a light guide | — | 2005-06-21 |
| 6864933 | Light valve and device provided with a light valve | Dirk Jan Broer, Cornelis Antonius Van Den Heuvel | 2005-03-08 |
| 6703776 | Cathode ray tube | Nijs Cornelis Van Der Vaart, Petrus Hubertus Franciscus Trompenaars | 2004-03-09 |
| 6653997 | Display device comprising a light guide | Pierre Cobben, Johannes Marra | 2003-11-25 |
| 6628246 | Display device comprising a light guide | — | 2003-09-30 |
| 6566801 | Cathode ray tube | Nijs Cornelis Van Der Vaart, Petrus Hubertus Franciscus Trompenaars, Eduard Matheus Johannes Niessen | 2003-05-20 |
| 6528937 | Display device including a light guide with movable element for emitting visible light when excited by ultraviolet radiation | — | 2003-03-04 |
| 6525483 | Display device comprising a light guide with electrode voltages dependent on previously applied electrode voltages | Siebe Tjerk De Zwart | 2003-02-25 |
| 5270611 | Electric discharge element | — | 1993-12-14 |
| 5243197 | Semiconductor device for generating an electron current | Aart A. Van Gorkum, Gerjan F. A. Van De Walle, Petrus Arthur Marie Van Der Heide, Arthur M. E. Hoeberechts | 1993-09-07 |
| 5008535 | Energy analyzer and spectrometer for low-energy electrons | — | 1991-04-16 |
| 4871911 | Electron beam apparatus comprising a semiconductor electron emitter | Arthur M. E. Hoeberechts, Karel Diederick Van Der Mast, Harm Tolner | 1989-10-03 |
| 4853585 | Display device with multiplicity of closely spaced electron beams | Arthur M. E. Hoeberechts | 1989-08-01 |
| 4853754 | Semiconductor device having cold cathode | Henri F. J. van 't Blik | 1989-08-01 |
| 4801994 | Semiconductor electron-current generating device having improved cathode efficiency | Arthur M. E. Hoeberechts | 1989-01-31 |
| 4766340 | Semiconductor device having a cold cathode | Karel Diederick Van Der Mast, Arthur M. E. Hoeberechts | 1988-08-23 |
| 4722852 | Device for electron emission including device for providing work function reducing layer and method of applying such a layer | Arthur M. E. Hoeberechts, Henricus A. M. Van Hal, Harm Tolner | 1988-02-02 |
| 4709185 | Device for electron emission including device for providing work function-reducing layer and method of applying such a layer | Arthur M. E. Hoeberechts, Henricus A. M. Van Hal, Harm Tolner | 1987-11-24 |
| 4682074 | Electron-beam device and semiconductor device for use in such an electron-beam device | Arthur M. E. Hoeberechts | 1987-07-21 |
| 4574216 | Cathode-ray tube and semiconductor device for use in such a cathode-ray tube | Arthur M. E. Hoeberechts | 1986-03-04 |
| 4554564 | Semiconductor device and method of manufacturing same, as well as a pick-up device and a display device having such a semiconductor device | Arthur M. E. Hoeberechts | 1985-11-19 |
| 4516146 | Electron sources and equipment having electron sources | John M. Shannon, Arthur M. E. Hoeberechts | 1985-05-07 |
| 4370797 | Method of semiconductor device for generating electron beams | Arthur M. E. Hoeberechts | 1983-02-01 |