Patents by Inventor Joseph J. Wysocki

Joseph J. Wysocki 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).

  • Texture transformations in optically negative liquid crystals
    Patent number: 3960439
    Abstract: A system for transforming an optically negative liquid crystalline composition from the focal-conic texture state to the Grandjean texture state by means of an applied electrical field which may be a D.C. electrical field or a relatively low frequency A.C. electrical field. Imaging and display systems wherein a member comprising a film of an optically negative liquid crystalline composition is imaged in a desired image configuration by the electrical field induced texture transformation system are also described.
    Type: Grant
    Filed: September 16, 1974
    Date of Patent: June 1, 1976
    Assignee: Xerox Corporation
    Inventors: James H. Becker, Joseph J. Wysocki
  • Edge brightness display and method using a material exhibiting dielectric anisotropy
    Patent number: 3930719
    Abstract: A dielectric anisotropic material provided in its optical uniaxial state is caused to alter its optical properties along electrode edges by shorting electrodes, changing potential or otherwise modifying the application of an applied electrical field parallel to the optical axis of the dielectric anisotropic material. Electro-optic cells and imaging systems are disclosed using the edge effect accompanying the modification of the applied electrical field.
    Type: Grant
    Filed: April 9, 1973
    Date of Patent: January 6, 1976
    Assignee: Xerox Corporation
    Inventors: Robert W. Madrid, Joseph J. Wysocki