Patents by Inventor Harvey S. Towers

Harvey S. Towers 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).

  • Electrophotographic imaging member containing zirconium in base layer
    Patent number: 4780385
    Abstract: An electrophotographic imaging member is disclosed having an imaging surface adapted to accept a negative electrical charge, the electrophotographic imaging member comprising a metal ground plane layer comprising zirconium, a hole blocking layer, a charge generation layer comprising photoconductive particles dispersed in a film forming resin binder, and a hole transport layer, the hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from the charge generation layer and transporting the holes through the charge transport layer.
    Type: Grant
    Filed: April 21, 1987
    Date of Patent: October 25, 1988
    Assignee: Xerox Corporation
    Inventors: Francis J. Wieloch, Charles C. Robinson, Frederick D. Gonyea, Harvey S. Towers, Anthony M. Horgan, Edward F. Grabowski, Satish Parikh