Patents by Inventor Olivier Ou Ramdane

Olivier Ou Ramdane has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Liquid crystal device comprising anchoring means on at least one confinement plate providing a degenerated orientation
    Patent number: 6452573
    Abstract: The present invention relates to a liquid crystal display device comprising a liquid crystal material sandwiched between two confinement plates (1, 2), the device being characterized by the fact that at least one of the plates (2) is provided with treatment which defines degenerate or nearly degenerate azimuth anchoring without azimuth orientation memory.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: September 17, 2002
    Assignee: Nemoptic, S.A.
    Inventors: Philippe Martinot-Lagarde, Ivan Dozov, Eric Polossat, Eric Raspaud, Philippe Auroy, Olivier Ou Ramdane, Georges Durand, Sandrine Forget