Patents by Inventor Dennis J. Prosser

Dennis J. Prosser 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).

  • Imaging members
    Publication number: 20040067427
    Abstract: A member including for example, a substrate, a charge generating layer, a charge transport layer comprising a synthesized mixture of
    Type: Application
    Filed: October 8, 2002
    Publication date: April 8, 2004
    Applicant: Xerox Corporation
    Inventors: Yuhua Tong, John F. Yanus, Timothy J. Fuller, Min-Hong Fu, Dennis J. Prosser, Susan M. VanDusen
  • Imaging members
    Publication number: 20040018439
    Abstract: A member including for example, a substrate, a charge generating layer, a charge transport layer comprising a poly(phenylsilsesquioxane), molecule, and a film forming binder.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Applicant: Xerox Corporation
    Inventors: Yuhua Tong, Timothy J. Fuller, Sean X. Pan, John F. Yanus, Cindy C. Chen, Min-Hong Fu, Dennis J. Prosser, Susan M. VanDusen
  • Contactless system for detecting subtle surface potential charge patterns
    Patent number: 6150824
    Abstract: A contactless process for detecting electrical patterns on the outer surface of a member comprising providing a member having a charge pattern on an outer surface, repetitively measuring the charge pattern on the outer surface of the member with an electrostatic voltmeter probe maintained at a substantially constant distance from the surface, the distance between the probe and the imaging member being slightly greater than the minimum distance at which Paschen breakdown will occur to form a parallel plate capacitor with a gas between the probe and the surface, the frequency of repetition being selected to cause all time dependent signals to fall out of phase by a predetermined amount, and averaging the out of phase time dependent signals over a sufficient number of measuring repetitions to eliminate the time dependent signals. In one embodiment, the contactless process detects surface potential charge patterns in an electrostatographic imaging member.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: November 21, 2000
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Edward A. Domm, Zoran D. Popovic, Denis C. Thomas, Samy A. Mesbah, Dennis J. Prosser, Steven P. Nonkes
  • Photoconductive imaging members
    Patent number: 6132912
    Abstract: A photoconductive imaging member comprised of a supporting substrate, a layer (1) thereover, a photogenerating layer and a charge transport layer, and wherein said layer (1) is generated from a mixture of a polyhydroxyalkylacrylate, and an amino alkyltrialkoxysilane.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: October 17, 2000
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Damodar M. Pai, John F. Yanus, Markus R. Silvestri, Huoy-Jen Yuh, John S. Chambers, Harold F. Hammond, Susan M. Vandusen, Dennis J. Prosser, Kathleen M. Carmichael, Robert C. U. Yu, Neil S. Patterson
  • Generator layer sensitization through transport layer doping
    Patent number: 6063533
    Abstract: An electrophotographic imaging member includinga supporting substrate,an undercoat layer,a charge generating layer comprisingphotoconductive pigment particles,film forming binder anda charge transport layer formed from a coating solution, the coating solution comprising charge transporting molecules, the charge transporting molecules comprising a major amount of a first charge transport molecule comprising an alkyl derivative of an arylamine and a minor amount of second transport molecule comprising an alkyloxy derivative of an arylamine.the charge generating layer being located between the substrate and the charge transport layer. A process for fabricating this imaging member is also disclosed.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: May 16, 2000
    Assignee: Xerox Corporation
    Inventors: John F. Yanus, Damodar M. Pai, Timothy J. Fuller, Dennis J. Prosser, Susan M. Vandusen