Issued Patents All Time
Showing 26–50 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5776644 | Photolithographic method for high resolution circle patterning utilizing calibrated opaque microspheres | Denis Randet | 1998-07-07 |
| 5574333 | Method for manufacturing a cathode for fluorescent display screens of the microtip-type | — | 1996-11-12 |
| 5537001 | Flat vacuum chambers without pumping stem | — | 1996-07-16 |
| 5455598 | Liquid crystal display with active matrix | — | 1995-10-03 |
| 5430459 | Cathodoluminescent display means using guided electrons and its control process | — | 1995-07-04 |
| 5298199 | Optical birefringence compensator adapted for LCD | Shinichi Hirose | 1994-03-29 |
| 5231387 | Apparatus and method for addressing microtip fluorescent screen | — | 1993-07-27 |
| 5229873 | Liquid crystal display having apertures in both electrodes | Shinichi Hirose | 1993-07-20 |
| 5225820 | Microtip trichromatic fluorescent screen | — | 1993-07-06 |
| 5220315 | Power source for dot matrix LCD | — | 1993-06-15 |
| 5182664 | Liquid crystal display having electrically controlled birefringence | — | 1993-01-26 |
| 5179456 | Optical birefringence compensator | Masanobu Aizawa, Shigekazu Yamauchi, Shunji Takenaka, Shinichi Hirose | 1993-01-12 |
| 5138308 | Microtip fluorescent matrix screen addressing process | Anne Ghis | 1992-08-11 |
| 5136407 | Liquid crystal display having apertures in the electrodes | — | 1992-08-04 |
| 5045754 | Planar light source | — | 1991-09-03 |
| 5032832 | Method to control a matrix display screen and device for implementation of said method | Denis Sarrasin | 1991-07-16 |
| 5015074 | Polychrome screen | Christine Ebel, Jean Dijon | 1991-05-14 |
| 4957349 | Active matrix screen for the color display of television pictures, control system and process for producing said screen | Jean-Claude Deutsch | 1990-09-18 |
| 4937566 | Liquid crystal matrix display screen provided with storage capacitances | — | 1990-06-26 |
| 4889412 | Liquid crystal cell using the electrically controlled birefringence effect and a uniaxial medium of negative optical anisotropy usable therein | Jean-Claude Deutsch, Pierre Vaudaine, Sylvie Vey | 1989-12-26 |
| 4841294 | Active matrix display screen permitting the display of gray levels | — | 1989-06-20 |
| 4813770 | Cell with a double liquid crystal layer using the electrically controlled birefringence effect and process for producing a uniaxial medium with negative optical anisotropy usable in said cell | Jean-Claude Deutsch, Aime Perrin | 1989-03-21 |
| 4786147 | Nematic liquid cell weakly doped by a chiral solute and of the type having electrically controlled birefringence | Laurence Rabas | 1988-11-22 |
| 4782337 | Matrix display device comprising two groups of row electrodes and two column electrodes for image element and its control process | Aime Perrin | 1988-11-01 |
| 4766428 | Three-dimensionally controlled liquid crystal matrix display and its control process | Thierry Leroux | 1988-08-23 |