Patents Represented by Attorney E. O. Palazzo

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  • Photoconductive member
    Patent number: 7378204
    Abstract: A photoconductive imaging member containing a photogenerating layer, and a charge transport layer, and wherein the charge transport layer is comprised of an arylamine containing a moiety that minimizes oxidation.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: May 27, 2008
    Assignee: Xerox Corporation
    Inventors: Yu Qi, Nan-Xing Hu, Gregory McGuire, Cheng-Kuo Hsiao
  • Coated carrier
    Patent number: 7374849
    Abstract: A carrier comprised of a core, and thereover a polymer coating containing antimony tin oxide with an average diameter of from about 5 to about 90 nanometers.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: May 20, 2008
    Assignee: Xerox Corporation
    Inventors: Vladislav Skorokhod, Maria N V. McDougall, Richard P N. Veregin, Cuong Vong, Jackie B. Parker
  • Coated carriers
    Patent number: 7374850
    Abstract: Carrier comprised of a core, a polymer coating, and wherein said coating contains a mixture of an alkali metal lauryl sulfate and a conductive component.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: May 20, 2008
    Assignee: Xerox Corporation
    Inventors: Christopher M. Pattison, Thomas C. Dombroski, Deepak R. Maniar
  • Photoconductive imaging members
    Patent number: 7354685
    Abstract: A photoconductive member comprised of a hole blocking layer, a photogenerating layer, and a charge transport layer comprised of a polymer with a low dielectric constant and a charge transport component.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: April 8, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Liang-Bih Lin, James M. Duff, Timothy P. Bender
  • Photoconductive members
    Patent number: 7348114
    Abstract: A photoconductive imaging member containing a photogenerating layer, and a charge transport layer containing a binder and a polyol ester.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: March 25, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Cindy C. Chen, Robert P. Altavela, Liang-Bih Lin
  • Photoconductive imaging members
    Patent number: 7314694
    Abstract: An imaging member comprised of a hole blocking layer, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer is comprised of a metal alkyoxide, an amino siloxane, and at least one polymer binder containing epoxy groups.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: January 1, 2008
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Nancy L. Belknap, John F. Yanus, Jin Wu
  • Photoconductive imaging members
    Patent number: 7166396
    Abstract: A photoconductive imaging member comprised of a substrate, a photogenerating layer, and thereover a charge transport layer comprised of a charge transport component or components, a polymer binder and metal oxide particles, wherein said metal oxide particles contain or are attached with or to a silane or a siloxane, or alternatively a polytetrafluoroethylene.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: January 23, 2007
    Assignee: Xerox Corporation
    Inventors: Yu Qi, Nan-Xing Hu, Ah-Mee Hor, Cheng-Kuo Hsiao, Yvan Gagnon, John F. Graham, Liang-Bih Lin, Cuong Vong
  • Imaging members
    Patent number: 7163771
    Abstract: A photoconductive member containing a supporting substrate; a photogenerating layer comprised of a photogenerating component, a hole transport component, an electron transport component, and a polymer binder; and a charge transport layer comprised of a charge transport component, an electron transport component and a polymer binder.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: January 16, 2007
    Assignee: Xerox Corporation
    Inventors: Andronique Ioannidis, Zoran D. Popovic, Nancy L. Belknap, John F. Graham, Cindy C. Chen, Peter A. Veneman
  • Photoconductive members
    Patent number: 7122283
    Abstract: A photoconductive member containing, for example, a substrate, a photogenerating layer, a charge transport layer and an overcoat layer wherein the overcoat layer is comprised of a crosslinked siloxane composite containing a caprolactone-siloxane.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: October 17, 2006
    Assignee: Xerox Corporation
    Inventors: Yu Qi, Nan-Xing Hu, H. Bruce Goodbrand, Ah-Mee Hor, Cheng-Kuo Hsiao, Cuong Vong, Gregory McGuire
  • Photoconductive members
    Patent number: 7074533
    Abstract: A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer a layer comprised of a polymer and a yellow dye of the formula
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: July 11, 2006
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Satchidanand Mishra, John F. Yanus, Anthony M. Horgan, Geoffrey M. T. Foley, Huoy-Jen Yuh, Dale S. Renfer, Yuhua Tong, Kenny-Tuan T. Dinh, Markus R. Silvestri, John F. Graham
  • Imaging members
    Patent number: 7070892
    Abstract: A photoconductive imaging member containing a supporting substrate, and thereover a single layer comprised of a photogenerator component, a charge transport component, an electron transport component, and a polymer binder.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: July 4, 2006
    Assignee: Xerox Corporation
    Inventors: Timothy P. Bender, John F. Graham, James M. Duff, Andronique Ioannidis, Nancy L. Belknap
  • Photoconductive imaging members
    Patent number: 7070894
    Abstract: A photoconductive imaging member comprised of an optional supporting substrate, a hole blocking layer thereover, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer is comprised of at least one copolymer of an aminoalkyltrialkoxysilane and a silane.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: July 4, 2006
    Assignee: Xerox Corporation
    Inventors: Timothy P. Bender, John F. Graham, Ah-Mee Hor, Johann Junginger
  • Toner processes
    Patent number: 7049042
    Abstract: A process for the preparation of toner by, for example, mixing a colorant, a latex, and a coagulant comprising cationic wax dispersion to provide, for example, a toner composition of high gloss images.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: May 23, 2006
    Assignee: Xerox Corporation
    Inventors: Michael A. Hopper, Raj D. Patel, Enno E. Agur, Joseph Bartel, Daryl Vanbesien
  • Photoconductive imaging members having pyrolized polyacrylonitrile hole blocking layer
    Patent number: 7049038
    Abstract: A photoconductive imaging member comprised of an optional supporting substrate, a hole blocking layer thereover, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer is comprised of a pyrolyzed polyacrylonitrile.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: May 23, 2006
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Helen R. Cherniack, Damodar M. Pai, Markus R. Silvestri, John F. Yanus, Yuhua Tong, Dale S. Renfer, Kenny-Tuan T. Dinh, Merlin E. Scharfe, Steven M. Sterling
  • Photoconductive imaging members
    Patent number: 7045262
    Abstract: A photoconductive imaging member comprised of a photogenerating layer and a charge transport layer, and wherein the charge transport layer contains a polymeric solid acid.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: May 16, 2006
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Satchidanand Mishra, Anthony M. Horgan, John F. Yanus, Dale S. Renfer, Robert C. U. Yu, Markus R. Silvestri, Cindy C. Chen, Lanhui Zhang
  • Toner processes
    Patent number: 7041425
    Abstract: A process including blending a latex emulsion of resin, water, and an ionic surfactant, a colorant dispersion comprised of a colorant, water, and an ionic surfactant; and a wax dispersion comprised of wax, water and an ionic surfactant, heating the resulting mixture in the presence of coagulants, one of which is a source of calcium ions, which heating is below about the glass transition temperature (Tg) of the latex resin and subsequently heating above about the glass transition temperature (Tg) of the latex resin.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: May 9, 2006
    Assignee: Xerox Corporation
    Inventors: Michael A. Hopper, Joseph Bartel, Maria N. V. McDougall, Patricia A. Burns, Richard P. N. Veregin
  • Photoconductive imaging members
    Patent number: 7037631
    Abstract: A photoconductive imaging member including a supporting substrate, a hole blocking layer thereover, a crosslinked photogenerating layer and a charge transport layer, and wherein the photogenerating layer includes a photogenerating component and a vinyl chloride, allyl glycidyl ether, hydroxy containing polymer.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: May 2, 2006
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Liang-Bih Lin, John S. Chambers
  • Toner processes
    Patent number: 7037633
    Abstract: A process involving heating a mixture of a colorant dispersion, a latex emulsion, and an optional wax dispersion in the presence of a coagulant containing a metal ion, a base, and an organic sequestering agent, and wherein said heating involves a first heating and a second heating, and wherein the second heating is at a higher temperature than the first heating; and wherein said higher temperature is equal to about or above about the Tg of polymer or resin contained in said latex emulsion.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: May 2, 2006
    Assignee: Xerox Corporation
    Inventors: Michael A. Hopper, Raj D. Patel
  • Toner processes
    Patent number: 7029817
    Abstract: A toner process comprising the aggregation and coalescence of a sulfonated polyester and a colorant, and wherein said polyester possesses a degree of sulfonation or a sulfonation percentage of from about 0.5 to about 3 mol percent.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: April 18, 2006
    Assignee: Xerox Corporation
    Inventors: Sarah J. P. Robinson, Thomas E. Enright, Alan E. J. Toth, Milan Maric, Michael S. Hawkins, Marko D. Saban, Guerino G. Sacripante, George Liebermann
  • Imaging members
    Patent number: 7008741
    Abstract: A photoconductive imaging member containing a photogenerating layer, a charge transport layer, or a plurality of charge transport layers, and which charge transport, especially the top charge transport layer contains a vinyl containing organic compound.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: March 7, 2006
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Satchidanand Mishra, Anthony M. Horgan, Richard L. Post, Yuhua Tong, Edward F. Grabowski, Kathleen M. Carmichael, Markus R. Silvestri