Patents Represented by Attorney E. O. Palazzo
  • Patent number: 7727689
    Abstract: A photoconductor containing an optional supporting substrate, a perylene photogenerating layer, and at least one silanol containing charge transport layer.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: June 1, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Nancy L. Belknap, Liang-Bih Lin
  • Patent number: 7722999
    Abstract: A photoconductor containing a substrate, a layer thereover, which layer contains, for example, a polyol resin, an aminoplast resin, a silicone free polyester, and a metal oxide dispersed therein; and at least one imaging layer formed on the polyol resin containing layer.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: May 25, 2010
    Assignee: Xerox Corporation
    Inventors: Daniel V. Levy, Jin Wu, Liang-Bih Lin, Francisco J. Lopez
  • Patent number: 7718336
    Abstract: A photoconductor containing a supporting substrate, a photogenerating layer; and at least one charge transport layer where the photogenerating layer contains a photogenerating pigment and a chelating additive or agent of, for example, a ?-diketone, a ketoester, a hydroxyl carboxylic acid, a hydroxyl carboxylic acid ester, a keto alcohol, or an amino alcohol.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: May 18, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kent J. Evans, Dennis J. Prosser, Liang-Bih Lin, Raymond K. Crandall
  • Patent number: 7718332
    Abstract: A photoconductor containing an optional supporting substrate; a photogenerating layer comprised of a chelating agent and a titanyl phthalocyanine; and at least one charge transport layer comprised of at least one charge transport component, and wherein a silanol is present in at least one of said photogenerating layer and charge transport layer.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: May 18, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Michael A. Morgan, Anthony M. Horgan, Liang-Bih Lin
  • Patent number: 7709169
    Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the at least one charge transport layer contains at least one charge trapping releaser.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: May 4, 2010
    Assignee: Xerox Corporation
    Inventor: Jin Wu
  • Patent number: 7709168
    Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the at least one charge transport layer contains at least one phosphonium salt.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: May 4, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Edward F Grabowski, Kent J Evans, Daniel V Levy
  • Patent number: 7700250
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer thereover, and at least one charge transport layer, and wherein the photogenerating layer contains a chelating agent, and a Type V titanyl phthalocyanine prepared, for example, by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with a monohalobenzene.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: April 20, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, John S. Chambers, Francisco J. Lopez, Daniel V. Levy, Liang-Bih Lin
  • Patent number: 7700249
    Abstract: A photoconductor that includes a supporting substrate, and an active layer in contact with the substrate, and which active layer contains a photogenerating pigment of a hydroxygallium phthalocyanine, at least one charge transport component, and a mixture of a metal oxide and a chelating agent, where the phthalocyanine is, for example, prepared by hydrolyzing a gallium halide phthalocyanine.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: April 20, 2010
    Assignee: Xerox Corporation
    Inventors: Liang-Bih Lin, Daniel V. Levy, Jin Wu, Edward C. Savage
  • Patent number: 7678517
    Abstract: A photoconductor that includes a supporting substrate, and an active layer in contact with the substrate, and which active layer contains a photogenerating pigment of a titanyl phthalocyanine, at least one charge transport component, and a mixture of a metal oxide and a chelating agent, where the titanyl phthalocyanine is prepared by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the resulting mixture of the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with a monohalobenzene to form Type V titanyl phthalocyanine.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: March 16, 2010
    Assignee: Xerox Corporation
    Inventors: Liang-Bih Lin, Daniel V. Levy, Jin Wu, Linda L. Ferrarese
  • Patent number: 7670740
    Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, at least one charge transport layer comprised of at least one charge transport component, and an overcoating layer in contact with and contiguous to the top charge transport layer, and which overcoating is comprised of a polymer, an optional overcoating charge transport component, and needle shaped particles with an aspect ratio of from 2 to about 200.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: March 2, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Daniel V. Levy, Liang-Bih Lin, Lin Ma
  • Patent number: 7670737
    Abstract: A photoconductor that includes a substrate; an undercoat layer thereover comprised of a metal oxide, and an ultraviolet light absorber component; a photogenerating layer; and at least one charge transport layer.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: March 2, 2010
    Assignee: Xerox Corporation
    Inventor: Jin Wu
  • Patent number: 7670739
    Abstract: A photoconductor that includes a supporting substrate, and an active layer in contact with the substrate, and which layer contains at least one photogenerating pigment, at least one charge transport component, and a mixture of a metal oxide and a chelating agent of a tetrafluorodihydroxyanthraquinone.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: March 2, 2010
    Assignee: Xerox Corporation
    Inventors: Liang-Bih Lin, Daniel V. Levy, Jin Wu, Linda L. Ferrarese
  • Patent number: 7670736
    Abstract: A photoconductor containing a first layer, a supporting substrate thereover, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the first layer is in contact with the supporting substrate on the reverse side thereof, and which layer contains a semi-penetrating polymer network formed from crosslinking a suitable fluoropolymer, and within which network structure is penetrated with a polycarbonate.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: March 2, 2010
    Assignee: Xerox Corporation
    Inventors: Huoy-Jen Yuh, Robert C U Yu, Yuhua Tong, David M. Skinner
  • Patent number: 7670735
    Abstract: A photoconductor containing a substrate, a layer thereover wherein the layer comprises, for example, a polyol resin, an aminoplast resin, an ester of phosphoric acid adhesion component, and a metal oxide; and at least one imaging layer of, for example, a photogenerating layer and a charge transport layer formed on the polyol resin containing layer.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: March 2, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Daniel V. Levy, Robert W. Hedrick, Liang-Bih Lin
  • Patent number: 7670738
    Abstract: A photoconductor comprising a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and where the photogenerating layer contains a boron containing compound.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: March 2, 2010
    Assignee: Xerox Corporation
    Inventor: Jin Wu
  • Patent number: 7670734
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer comprised of a chelating agent and a titanyl phthalocyanine; and at least one charge transport layer comprised of at least one charge transport component; and wherein a silanol is present in at least one of the photogenerating layer and charge transport layer, and wherein said at least one charge transport component is comprised of wherein X and Y are independently a suitable hydrocarbon, a halogen, or mixtures thereof.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: March 2, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, John F. Yanus, Anthony M. Horgan, Liang-Bih Lin
  • Patent number: 7670733
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a Type V hydroxygallium phthalocyanine having incorporated therein a silanol.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: March 2, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Francisco J. Lopez, Linda L. Ferrarese, Liang-Bih Lin
  • Patent number: 7662525
    Abstract: A photoconductor that contains a first layer, a supporting substrate thereover, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the first layer is in contact with the supporting substrate on the reverse side thereof, and which first layer includes a polymer and needle shaped particles with an aspect ratio of from 2 to about 200.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: February 16, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Daniel V. Levy, Liang-Bih Lin, Lin Ma, Ryan J. Ehmann
  • Patent number: 7662526
    Abstract: A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, and wherein the charge transport layer contains a charge blocking agent, such as a benzoimidazole.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: February 16, 2010
    Assignee: Xerox Corporation
    Inventors: Liang-Bih Lin, Daniel V. Levy, Jin Wu, Marc J. Livecchi
  • Patent number: 7662527
    Abstract: A photoconductor containing a substrate, an undercoat layer thereover comprising a polymeric resin, a silanol, and a metal oxide; and a photogenerating layer; and at least one charge transport layer.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: February 16, 2010
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Daniel V. Levy, Geoffrey M. T. Foley, Liang-Bih Lin