Patents by Inventor Selami Colak

Selami Colak 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).

  • Polychromatic CRT with crystalline semiconductor screen
    Patent number: 4922158
    Abstract: A polychromatic cathode ray tube includes a screen formed by a single layer of a crystalline semiconductor material which luminesces in visible light when excited by an electron beam. The color of luminescence is varied by modulating the heat energy imparted to the layer by the electron beam.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: May 1, 1990
    Assignee: North American Philips Corporation
    Inventor: Selami Colak