Patents by Inventor Joseph Mort

Joseph Mort 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).

  • Patent number: 5999780
    Abstract: Controllably conductive polymer compositions may be used in electrophotographic imaging developing systems, such as scavengeless or hybrid scavengeless systems or liquid image development systems. The conductive polymer compositions includes a charge-transporting material (particularly a charge-transporting, thiophene-containing polymer or an inert elastomeric polymer, such as a butadiene- or isoprene-based copolymer or an aromatic polyether-based polyurethane elastomer, that additionally comprises charge transport molecules) and a dopant capable of accepting electrons from the charge-transporting material. The invention also relates to an electrophotographic printing machine, a developing apparatus, and a coated transport member, an intermediate transfer belt, and a hybrid compliant photoreceptor comprising a composition of the invention.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: December 7, 1999
    Assignee: Xerox Corporation
    Inventors: Joseph Mort, Bing R. Hsieh, Mary A. Machonkin, Joseph Mammino, John F. Yanus
  • Patent number: 5848322
    Abstract: An apparatus for determining charge density and mobility in a liquid solution having electrically charged particles therein. The apparatus includes an electrode, and a dielectric member having a first surface situated opposite the electrode for providing a volume therebetween in which a sample of the liquid may be placed. A fixed bias voltage applied to the electrode to produce an electrical current flow through the liquid solution and the dielectric member. A device coupled to the dielectric member, measures the electrical current as a function of time to provide a measure of voltage decay across the liquid solution. The voltage decay corresponds to the charge density of the liquid solution.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: December 8, 1998
    Assignee: Xerox Corporation
    Inventors: Inan Chen, Joseph Mort, Mary Ann Machonkin
  • Patent number: 5834080
    Abstract: Controllably conductive polymer compositions may be used in electrophotographic imaging developing systems, such as scavengeless or hybrid scavengeless systems or liquid image development systems. The conductive polymer compositions includes a charge-transporting material (particularly a charge-transporting, thiophene-containing polymer or an inert elastomeric polymer, such as a butadiene- or isoprene-based copolymer or an aromatic polyether-based polyurethane elastomer, that additionally comprises charge transport molecules) and a dopant capable of accepting electrons from the charge-transporting material. The invention also relates to an electrophotographic printing machine, a developing apparatus, and a coated transport member, an intermediate transfer belt, and a hybrid compliant photoreceptor comprising a composition of the invention.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: November 10, 1998
    Assignee: Xerox Corporation
    Inventors: Joseph Mort, Bing R. Hsieh, Mary A. Machonkin, Joseph Mammino, John F. Yanus
  • Patent number: 5587224
    Abstract: A coated donor roll comprised of a core with a coating thereover comprised of a photolysis reaction product of a charge transporting polymer and a photo acid compound.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: December 24, 1996
    Assignee: Xerox Corporation
    Inventors: Bing R. Hsieh, Joseph Mort, Mary A. Machonkin, Joan R. Ewing
  • Patent number: 5459007
    Abstract: A liquid developer comprised of a liquid, thermoplastic resin particles, a nonpolar liquid soluble charge director comprised of an ionic or zwitterionic quaternary ammonium block copolymer ammonium block copolymer, and wherein the number average molecular weight thereof of said charge director is from about 70,000 to about 200,000.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: October 17, 1995
    Assignee: Xerox Corporation
    Inventors: James R. Larson, John W. Spiewak, Joseph Mort, Inan Chen, Martin A. Abkowitz, Homer Antoniadis
  • Patent number: 5178980
    Abstract: An imaging member comprised of a supporting substrate, a photogenerator layer optionally dispersed in a resin binder, and a charge transport layer comprised of a fullerene or fullerenes optionally dispersed in a resin binder.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: January 12, 1993
    Assignee: Xerox Corporation
    Inventors: Joseph Mort, Mary A. Machonkin
  • Patent number: 5114477
    Abstract: An ink composition which comprises an aqueous or organic liquid vehicle, and as a colorant a fullerene, or a mixture of fullerenes.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: May 19, 1992
    Assignee: Xerox Corporation
    Inventors: Joseph Mort, Mary A. Machonkin
  • Patent number: 5099296
    Abstract: A thin film transistor in which a source electrode is electrically isolated from a drain electrode and a gate electrode. The gate electrode is formed on one surface of an electrically insulating layer. A semiconducting layer is formed on the other surface of the electrically insulating layer. The semiconducting layer has a charge carrier mobility of at least 1 cm.sup.2 /V-sec. and is made from a polycrystalline diamond layer. The source electrode and the drain electrode are formed on one surface of the polycrystalline diamond layer. The other surface of the polycrystalline diamond layer is in integral contact with the other surface of the electrically insulating layer.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: March 24, 1992
    Assignee: Xerox Corporation
    Inventors: Joseph Mort, Frank Jansen, Mary A. Machonkin, Koji Okumura
  • Patent number: 4859553
    Abstract: Disclosed is an electrographic imaging member comprised of a supporting substrate; and in contact therewith components comprised of regions of a photogenerating substance dispersed in a charge transporting material comprised of plasma deposited silicon oxide with at least 50 atomic percent of oxygen.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: August 22, 1989
    Assignee: Xerox Corporation
    Inventors: Frank Jansen, Joseph Mort
  • Patent number: 4737429
    Abstract: An electrostatographic imaging member comprised of a supporting substrate; a hydrogenated amorphous silicon photogenerator layer; and in contact therewith a plasma deposited charge transporting layer with components therein selected from the group consisting of silicon nitrides, boron nitrides, aluminum nitrides, phosphorous nitrides, gallium nitrides, boron phosphides, aluminum phosphides, boron oxides, aluminum oxides, gallium oxides, and organosilanes; and wherein the transporting layer contains therein hydrogen, halides, or mixtures thereof.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: April 12, 1988
    Assignee: Xerox Corporation
    Inventors: Joseph Mort, Frank Jansen, Koji Okumura, Steven J. Grammatica, Michael A. Morgan
  • Patent number: 4698288
    Abstract: Disclosed is a photoresponsive imaging member comprised of a supporting substrate, a ground plane of hydrogenated amorphous silicon having incorporated therein dopants; and a photoconductive layer comprised of hydrogenated amorphous silicon.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: October 6, 1987
    Assignee: Xerox Corporation
    Inventor: Joseph Mort
  • Patent number: 4634648
    Abstract: Disclosed is a photoresponsive imaging member comprised of amorphous carbon.
    Type: Grant
    Filed: July 5, 1985
    Date of Patent: January 6, 1987
    Assignee: Xerox Corporation
    Inventors: Frank Jansen, Joseph Mort
  • Patent number: 4634647
    Abstract: An electrophotographic photoresponsive device for use in electrophotography comprised of a supporting substrate, and an amorphous silicon composition containing from about 25 parts per million by weight to about 1 weight percent of boron compensated with from about 25 parts per million by weight to about 1 weight percent of phosphorous, nitrogen, or arsenic. Also disclosed is a photoresponsive electrophotographic device comprised of a supporting substrate, an uncompensated amorphous silicon layer and an amorphous silicon composition containing from about 100 parts per million by weight to about 1 weight percent of boron compensated with from about 25 parts per million by weight to about 1 weight percent of phosphorous, wherein the compensation increases from zero percent compensation to one percent compensation, for a distance of from about 0.
    Type: Grant
    Filed: January 29, 1985
    Date of Patent: January 6, 1987
    Assignee: Xerox Corporation
    Inventors: Frank Jansen, Joseph Mort, Michael A. Morgan, Steven J. Grammatica, John C. Knights
  • Patent number: 4613556
    Abstract: Disclosed is an electrographic imaging member consisting essentially of a supporting substrate, a hydrogenated amorphous silicon photogenerating layer, and in contact therewith a charge transporting layer of plasma deposited silicon oxide containing at least 50 atomic percent of oxygen.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: September 23, 1986
    Assignee: Xerox Corporation
    Inventors: Joseph Mort, Frank Jansen, Koji Okumura, Steven J. Grammatica, Michael A. Morgan
  • Patent number: 4544617
    Abstract: Disclosed is an electrophotographic photoresponsive device comprised of a supporting substrate, an amorphous silicon charge transport layer, a trapping layer comprised of doped amorphous silicon, and a top insulating overcoating layer.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: October 1, 1985
    Assignee: Xerox Corporation
    Inventors: Joseph Mort, Frank Jansen, Steven J. Grammatica, Michael A. Morgan
  • Patent number: 4513022
    Abstract: This invention is directed to a process for preparing semiconducting and photoelectronic devices comprised of a first electrode means, a second counter electrode means, a receptacle means for the first electrode means and the second counter electrode means, a substrate means to be coated contained on the first electrode means, which substrate is in the form of a cylindrical member, and a gas inlet means, a gas exhaust means, wherein a silane gas is introduced into the receptacle in a crossflow direction, perpendicular to the axis of the cylindrical member.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: April 23, 1985
    Assignee: Xerox Corporation
    Inventors: Frank Jansen, Joseph Mort
  • Patent number: 4466380
    Abstract: This invention is directed to an apparatus for preparing semiconducting and photoelectronic devices comprised of a first electrode means, a second counter electrode means, a receptacle means for the first electrode means and the second counter electrode means, a substrate means to be coated contained on the first electrode means, which substrate is in the form of a cylindrical member, and a gas inlet means, a gas exhaust means, wherein a silane gas is introduced into the receptacle in a crossflow direction, perpendicular to the axis of the cylindrical member.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: August 21, 1984
    Assignee: Xerox Corporation
    Inventors: Frank Jansen, Joseph Mort