Patents by Inventor James M. Hevezi

James M. Hevezi 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).

  • Electrostatic imaging apparatus
    Patent number: 4521808
    Abstract: An image scanning apparatus for obtaining radiographic information from a detector system. The apparatus produces a video signal by optical readout of a latent image found in a detector system. The video signal is processed and displayed to provide radiographic information.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: June 4, 1985
    Assignee: University of Texas System
    Inventors: Poen S. Ong, Alfonso Zermeno, Lee M. Marsh, Jr., James M. Hevezi, Ronald W. Cowart
  • Electrostatic imaging method
    Patent number: 4446365
    Abstract: A method of operating a photodetector system. The method impresses a surface charge on a photon detector by establishing an electric potential across the detector, storing the detector in the dark, disconnecting the source of electric potential, and electrically connecting layers in the detector.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: May 1, 1984
    Assignee: University of Texas System
    Inventors: Poen S. Ong, Alfonso Zermeno, Lee M. Marsh, Jr., James M. Hevezi
  • Imaging by point absorption of radiation
    Patent number: 4085324
    Abstract: Radiation is partially blocked by a pointlike absorber to establish a patterned flux whose intensity distribution is a function of source geometry. The flux strikes a receptor having a proper contrast to spatial frequency characteristic to map an image that is topologically equivalent to the source at an acceptable level of contrast and acuity.Apparatus is disclosed that is capable of practicing the invention in the X-ray and light regions of the electromagnetic spectrum.
    Type: Grant
    Filed: January 4, 1977
    Date of Patent: April 18, 1978
    Assignee: The University of Texas
    Inventors: Alfonso Zermeno, Lee M. Marsh, Jr., James M. Hevezi