Patents Represented by Attorney E. O. Palazzo

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  • Phosphate ester containing photoconductors
    Patent number: 7622230
    Abstract: A photoconductor containing a substrate, an undercoat layer thereover wherein the undercoat layer includes, for example, a polyol resin, an aminoplast resin, a polymeric phosphate ester adhesion component, and a metal oxide; and at least one imaging layer, such as a photogenerating and charge transport layer, formed on the undercoat layer.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: November 24, 2009
    Assignee: Xerox Corporation
    Inventors: Daniel V. Levy, Jin Wu, Liang-Bih Lin, Francisco J. Lopez
  • Imaging members containing intermixed polymer charge transport component layer
    Patent number: 7622231
    Abstract: A photoconductor containing a photogenerating layer, at least one charge transport layer, and a layer in contact with the charge transport layer comprised of a suitable polymer, and wherein the charge transport layer comprises molecules of the formula/structure wherein X represents alkyl.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: November 24, 2009
    Assignee: Xerox Corporation
    Inventors: Gregory McGuire, Jennifer A. Coggan, Johann Junginger, Nan-Xing Hu, Ah-Mee Hor
  • Photoconductors containing chelating components
    Patent number: 7618756
    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.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: November 17, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kent J. Evans, Dennis J. Prosser, Liang-Bih Lin, Raymond K. Crandall
  • Silanol containing perylene photoconductors
    Patent number: 7618758
    Abstract: A photoconductor containing an optional supporting substrate, a perylene silanol photogenerating layer, and at least one charge transport layer.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: November 17, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Nancy L. Belknap, Liang-Bih Lin
  • Polyhydroxy siloxane photoconductors
    Patent number: 7592110
    Abstract: An imaging member including an optional supporting substrate, a photogenerating layer, and 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 charge transport, and which overcoating is comprised of an acrylated polyol, a polyalkylene glycol, a crosslinking agent, a hydroxy functionalized siloxane and a charge transport component.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: September 22, 2009
    Assignee: Xerox Corporation
    Inventors: Kenny-Tuan Dinh, John F. Yanus, Raymond K. Crandall, Edward J. Radigan, Jr.
  • Hole blocking layer containing photoconductors
    Patent number: 7579126
    Abstract: A photoconductor containing a substrate; an undercoat layer thereover wherein the undercoat layer includes an electroconducting component dispersed in a rapid curing polymer matrix; a photogenerating layer, and at least one charge transport layer.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: August 25, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Dennis J. Prosser, Satchidanand Mishra, Liang-Bih Lin, Daniel V. Levy, Lin Ma
  • Photoconductors with silanol-containing photogenerating layer
    Patent number: 7560206
    Abstract: A photoconductor containing an optional supporting substrate, a silanol containing photogenerating layer, and at least one charge transport layer.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: July 14, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, John S. Chambers, Satchidanand Mishra, Michael A. Morgan, Liang-Bih Lin
  • Titanyl phthalocyanine photoconductors
    Patent number: 7553593
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the photogenerating layer contains a 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: June 22, 2006
    Date of Patent: June 30, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Satchidanand Mishra, Kathleen M. Carmichael, Anthony M. Horgan, Kent J. Evans, Geoffrey M T. Foley, Yonn K. Rasmussen, Edward F. Grabowski, Liang-Bih Lin
  • Alkyltriol titanyl phthalocyanine photoconductors
    Patent number: 7550239
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the photogenerating layer contains an alkyltriol, such as glycerol, and a photogenerating pigment, such as a Type V titanyl phthalocyanine prepared, for example, by dissolving a Type I titanyl phthalocyanine in a solution of a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution of 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: January 23, 2007
    Date of Patent: June 23, 2009
    Assignee: Xerox Corporation
    Inventors: Cuong Vong, Ah-Mee Hor
  • Photoconductor having silanol-containing charge transport layer
    Patent number: 7541122
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one silanol containing charge transport layer.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: June 2, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Susan M. Vandusen, Liang-Bih Lin, Michael S. Roetker, Robert C. U. Yu
  • Polyarylate containing member
    Patent number: 7534536
    Abstract: A photoconductor containing a substrate, an undercoat layer thereover comprising a polyol resin, an aminoplast resin, a polyarylate, a siloxane modified polyarylate, an epoxy modified polyarylate, or a urethane modified polyarylate, or an amine modified polyarylate, and a metal oxide; a photogenerating layer, and at least one charge transport layer.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: May 19, 2009
    Assignee: Xerox Corporation
    Inventors: Liang-Bih Lin, Daniel V. Levy, Jin Wu, Francisco J. Lopez
  • Thiophosphate and antioxidant containing photoconductors
    Patent number: 7491480
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the at least one charge transport layer contains at least one thiophosphate.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: February 17, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Satchidanand Mishra, Kent J. Evans, J. Robinson Cowdery-Corvan, Anthony M. Horgan, Geoffrey M T. Foley, Kathleen M. Carmichael, Liang-Bih Lin
  • Thiophosphate containing photoconductors
    Patent number: 7476477
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer, and wherein the at least one charge transport layer contains at least one thiophosphate, and wherein the thiophosphate is present in an amount of from about 0.005 to about 0.09 weight percent.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: January 13, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Geoffrey M T. Foley, Edward C. Savage, Liang-Bih Lin
  • Ether and antioxidant containing photoconductors
    Patent number: 7473505
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: January 6, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin
  • Polyphenyl thioether and thiophosphate containing photoconductors
    Patent number: 7468229
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl thioether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is a number of from about 1 to about 10; and wherein a thiophosphate is contained in the photogenerating layer.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: December 23, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
  • Polyphenyl thioether and thiophosphate containing photoconductors
    Patent number: 7462432
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl thioether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, aryl, alkoxy, and halogen; n is a number of from about 1 to about 10; and a thiophosphate.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: December 9, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
  • Polyphenyl ether containing photoconductors
    Patent number: 7459250
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl ether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is a suitable number of from about 1 to about 10.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: December 2, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin
  • Polyphenyl ether and thiophosphate containing photoconductors
    Patent number: 7452643
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is a number of from about 1 to about 10; and wherein a thiophosphate is contained in the photogenerating layer.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: November 18, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
  • Ether and thiophosphate containing photoconductors
    Patent number: 7445876
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer of at least one charge transport component, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10, and an optional antioxidant; and wherein a thiophosphate is contained in the photogenerating layer.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: November 4, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
  • Hybrid toner processes
    Patent number: 7442740
    Abstract: A toner process that includes a first heating of a colorant dispersion, a first polyester resin free latex emulsion, a second polyester latex emulsion, and a wax dispersion in the presence of a coagulant containing a metal ion; adding a third polyester free latex; adding an organic sequestering compound or a silicate salt sequestering compound, followed by a second heating.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: October 28, 2008
    Assignee: Xerox Corporation
    Inventors: Raj D Patel, Guerino G Sacripante, Edward G Zwartz, Enno E Agur, Allan K Chen, T. Hwee Ng, Kimberly D Nosella, Cuong Vong, Karen A Moffat