Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818857 | Electrostatic image sensor having an electret which polarizes a photoconductive layer | Francois Micheron | 1989-04-04 |
| 4812647 | Optical addressing device and its use in electro-optical imaging devices | Francois Micheron, Alain Staron, Jacques Trotel | 1989-03-14 |