Patents by Inventor Werner F. Heirbaut

Werner F. Heirbaut 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).

  • Process control of electrophotographic device
    Patent number: 6034703
    Abstract: A method is described to control the maximum density and the pixel profile of microdots produced by a binary or multilevel electrophotographic device. In various embodiments, from the maximum development potential. The working point of the device is established by imposing a relation between charge level, discharge level and saturation voltage level of the photosensitive element. This allows to achieve consistent output densities, irrespective of the environmental parameters, such as relative humidity and temperature.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: March 7, 2000
    Assignees: Texas Instruments Incorporated, Agfa-Gevaert N.V.
    Inventors: Dirk K. Broddin, Jean-Pierre J. Slabbaert, Frank A. Deschuytere, Robert F. Janssens, Werner F. Heirbaut, William E. Nelson, Venkat V. Easwar