Patents Represented by Attorney E. O. ]&gt Palazzo

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  • Tetrafluoro hydroxygallium phthalocyanines and photoconductive imaging members
    Patent number: 5534376
    Abstract: A photoconductive imaging member comprised of a supporting substrate, a photogenerating layer, and a charge transport layer, and wherein said photogenerating layer is comprised of a tetrafluoro hydroxygallium phthalocyanine.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: July 9, 1996
    Assignee: Xerox Corporation
    Inventors: James D. Mayo, James M. Duff, Gordon K. Hamer, Sandra J. Gardner
  • Magnetic toner compositions containing charge enhancing additive particles
    Patent number: 5278018
    Abstract: A negatively charged toner composition comprised of crosslinked resin particles, silane treated magnetite particles, wax particles, charge enhancing additive particles, and surface additive particles.
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: January 11, 1994
    Assignee: Xerox Corporation
    Inventors: Eugene F. Young, Jonathan G. Hyland