Patents by Inventor Timothy J. Fuller

Timothy J. Fuller 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).

  • 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
  • Photosensitive member having deletion control additive
    Patent number: 7026083
    Abstract: An imaging member having a substrate, a charge transport layer having charge transport materials dispersed therein, and an overcoat layer comprising trisamino triphenyl compound.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: April 11, 2006
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Kenny-Tuan T. Dinh, John F. Yanus, Yuhua Tong, Markus R. Silvestri, Dale S. Renfer
  • Imaging member
    Patent number: 7022445
    Abstract: A charge transport layer for an imaging member comprising a charge transport layer wherein the charge transport layer is coated in two passes and wherein the second pass comprises the application of a charge transport component and a hindered phenol covalently bonded to a polymer. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, and excellent print quality.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: April 4, 2006
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Timothy J. Fuller, Colleen A. Helbig, Kent J. Evans, John F. Yanus, Karen S. Garland, Paul J. DeFeo, Anita P. Lynch, Kathleen M. Carmichael, Damodar M. Pai, Dale S. Renfer, Markus R. Silvestri
  • Dual charge transport layer and photoconductive imaging member including the same
    Patent number: 7018756
    Abstract: A photoconductive imaging member is disclosed comprising a charge generation layer and a charge transport layer comprising an oxidative inhibitor. An electrophotographic imaging process using the imaging member of the invention is also described.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: March 28, 2006
    Assignee: Xerox Corporation
    Inventors: Damodar M. Pai, Kent J. Evans, Kathleen M. Carmichael, Colleen A. Helbig, John F. Yanus, Yuhua Tong, Timothy J. Fuller, Karen S. Garland, Paul J. DeFeo, Anita P. Lynch
  • Imaging members
    Patent number: 6991880
    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: Grant
    Filed: July 23, 2002
    Date of Patent: January 31, 2006
    Assignee: 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
  • Imaging member
    Patent number: 6933089
    Abstract: A charge transport layer for an imaging member comprising a dual charge transport layer and wherein the charge transport layers comprise a photogenerating layer; (1) a first charge transport layer comprised of a charge transport component and a resin binder; and thereover and in contact with the first layer; (2) a second top charge transport layer comprised of a charge transport component, a resin binder and a hindered phenol dopant. The charge transport layer exhibits, excellent electrical performance, outstanding print quality and reduces the diffusion of the anti-oxidant into the charge generator layer.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: August 23, 2005
    Assignee: Xerox Corporation
    Inventors: Anthony M. Horgan, Satchidanand Mishra, Robert C. U. Yu, Kathleen M. Carmichael, Kent J. Evans, Timothy J. Fuller, Colleen A. Helbig, John F. Yanus, Damodar M. Pai, Karen S. Garland
  • Photoconductive members
    Patent number: 6919154
    Abstract: A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer comprised of a polymer and a yellow dye of the formula
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: July 19, 2005
    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
  • Composition comprising trisamino-triphenyl compound
    Patent number: 6906125
    Abstract: A composition having a trisamino triphenyl compound and a layer composition having a trisamino triphenyl compound and a polyamide.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: June 14, 2005
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Kenny-Tuan T. Dinh, John F. Yanus, Yuhua Tong, Markus R. Silvestri, Dale S. Renfer
  • High performance curable polymers and processes for the preparation thereof
    Patent number: 6897267
    Abstract: Disclosed is a composition which comprises a polymer containing at least some monomer repeat units with photosensitivity-imparting substituents which enable crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer being of the formula wherein x is an integer of 0 or 1, A is one of several specified groups, such as B is one of several specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units, wherein said photosensitivity-imparting substituents are allyl ether groups, epoxy groups, or mixtures thereof. Also disclosed are a process for preparing a thermal ink jet printhead containing the aforementioned polymers and processes for preparing the aforementioned polymers.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: May 24, 2005
    Assignee: Xerox Corporation
    Inventors: Ram S. Narang, Timothy J. Fuller
  • Photoconductive imaging members
    Patent number: 6875548
    Abstract: A photoconductive imaging member including an optional supporting substrate, a photogenerating layer, and a charge transport layer, and wherein said layer includes a charge transport component and a polysiloxane.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: April 5, 2005
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Timothy J. Fuller, John F. Yanus, Dale S. Renfer, Markus R. Silvestri, Cindy C. Chen, Dennis J. Prosser, Susan M. VanDusen, Lanhui Zhang, Sean X. Pan
  • Long potlife, low temperature cure overcoat for low surface energy photoreceptors
    Patent number: 6835515
    Abstract: A composition is provided for coating a photoreceptor having a charge generating layer and a charge transport layer. The composition includes a hole transport material, a cross-linkable film forming binder having at least one functional group that is reactive with isocyanate, a blocked isocyanate cross-linking agent and a solvent having a boiling point equal to or below the deblocking temperature. The blocked isocyanate cross-linking agent is the reaction product of an isocyanate and a blocking agent, wherein the blocking agent has a boiling point temperature equal to or below a selected deblocking temperature to allow the isocyanate to form cross-links. The invention also provides an electrophotographic imaging member with an overcoat layer comprising a cross-linked film forming binder, an isocyanate compound, a hole transport material, and optionally a surface energy reducing agent. Processes for making the imaging members are also provided.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: December 28, 2004
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, John F. Yanus, William W. Limburg, Timothy J. Fuller, Dale S. Renfer, Markus R. Silvestri
  • High performance curable polymers and processes for the preparation thereof
    Publication number: 20040229164
    Abstract: Disclosed is a composition which comprises a polymer containing at least some monomer repeat units with photosensitivity-imparting substituents which enable crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer being of the formula 1
    Type: Application
    Filed: January 7, 2002
    Publication date: November 18, 2004
    Applicant: Xerox Corporation
    Inventors: Ram S. Narang, Timothy J. Fuller
  • Photoconductive members
    Publication number: 20040224244
    Abstract: A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer comprised of a polymer and a yellow dye of the formula.
    Type: Application
    Filed: May 5, 2003
    Publication date: November 11, 2004
    Applicant: 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
  • Photoconductive imaging members
    Publication number: 20040175637
    Abstract: A photoconductive imaging member including an optional supporting substrate, a photogenerating layer, and a charge transport layer, and wherein said layer includes a charge transport component and a polysiloxane.
    Type: Application
    Filed: February 19, 2003
    Publication date: September 9, 2004
    Applicant: Xerox Corportion
    Inventors: Yuhua Tong, Timothy J. Fuller, John F. Yanus, Dale S. Renfer, Markus R. Silvestri, Cindy C. Chen, Dennis J. Prosser, Susan M. VanDusen, Lanhui Zhang, Sean X. Pan
  • Imaging members
    Patent number: 6787277
    Abstract: A member including for example, a substrate, a charge generating layer, a charge transport layer comprising a synthesized mixture of N,N,N′,N′-Tetra-p-tolyl-biphenyl-4,4′-diamine, N,N′-Diphenyl-N,N′-di-m-tolyl-biphenyl-4,4′-diamine, N,N′-Bis-(4-butyl-phenyl)-N,N′-di-p-tolyl-biphenyl-4,4′-diamine, N,N′-Bis-(4-butyl-phenyl)-N,N′-di-m-tolyl-biphenyl-4,4′diamine, N-Phenyl-N-m-tolyl-N′,N′-di-p-tolyl-biphenyl-4,4′-diamine, N-(4-Butyl-phenyl)-N,N′,N′-tri-p-tolyl-biphenyl-4,4′-diamine, N-(4-Butyl-phenyl)-N′-phenyl-N′-m-tolyl-N-p-tolyl-biphenyl-4,4′-diamine, N-(4-Butyl-phenyl)-N-m-tolyl-N′,N′-di-p-tolyl-biphenyl-4,4′-diamine, N-(4-Butyl-phenyl)-N′-phenyl-N,N′-di-m-tolyl-biphenyl-4,4′-diamine, and N,N′-Bis-(4-butyl-phenyl)-N-m-tolyl-N′-p-tolyl-biphenyl-4,4′-diamine, and a film forming binder.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: September 7, 2004
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, John F. Yanus, Timothy J. Fuller, Min-Hong Fu, Dennis J. Prosser, Susan M. VanDusen
  • Long potlife, low temperature cure overcoat for low surface energy photoreceptors
    Publication number: 20040166427
    Abstract: A composition is provided for coating a photoreceptor having a charge generating layer and a charge transport layer. The composition includes a hole transport material, a cross-linkable film forming binder having at least one functional group that is reactive with isocyanate, a blocked isocyanate cross-linking agent and a solvent having a boiling point equal to or below the deblocking temperature. The blocked isocyanate cross-linking agent is the reaction product of an isocyanate and a blocking agent, wherein the blocking agent has a boiling point temperature equal to or below a selected deblocking temperature to allow the isocyanate to form cross-links. The invention also provides an electrophotographic imaging member with an overcoat layer comprising a cross-linked film forming binder, an isocyanate compound, a hole transport material, and optionally a surface energy reducing agent. Processes for making the imaging members are also provided.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 26, 2004
    Applicant: Xerox Corporation
    Inventors: Yuhua Tong, John F. Yanus, William W. Limburg, Timothy J. Fuller, Dale S. Renfer, Markus R. Silvestri
  • Imaging member
    Patent number: 6780554
    Abstract: A charge transport layer for an imaging member comprising a photogenerating layer, (1) a first charge transport layer comprised of a charge transport component and a resin binder, and thereover and in contact with the first layer (2) a second top charge transport layer comprised of a charge transport component, and a polymer of a styrene containing hindered phenol. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, and outstanding print quality.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: August 24, 2004
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Timothy J. Fuller, Colleen A. Helbig, Kent J. Evans, John F. Yanus, Karen S. Garland, Paul J. DeFeo, Anita P. Lynch, Kathleen M. Carmichael, Damodar M. Pai
  • Imaging member
    Patent number: 6770410
    Abstract: An imaging member including, for example, a substrate, a charge blocking layer, an optional adhesive layer, a charge generating layer, a charge transporting layer comprising a charge transport component and a polymer binder substantially free of low molecular weight fractions.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: August 3, 2004
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Timothy J. Fuller, Kathleen M. Carmichael
  • Polyamide and conductive filler adhesive
    Patent number: 6761978
    Abstract: An adhesive having polyamide and an electrically conductive filler dispersed or contained therein, for use in bonding components of electrostatographic, contact electrostatic, digital and other like printing machines.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: July 13, 2004
    Assignee: Xerox Corporation
    Inventors: Ralph A. Mosher, T. Edwin Freeman, Theodore Lovallo, Damodar M. Pai, John F. Yanus, Timothy J. Fuller, Markus R. Silvestri, Gerald M. Fletcher, Antonio DeCrescentis, Ihor W. Tarnawskyj
  • Imaging members
    Publication number: 20040115545
    Abstract: A charge transport layer for an imaging member comprising a dual charge transport layer and wherein the charge transport layers comprise a photogenerating layer; (1) a first charge transport layer comprised of a charge transport component and a resin binder; and thereover and in contact with the first layer; (2) a second top charge transport layer comprised of a charge transport component, a resin binder and a hindered phenol dopant. The charge transport layer exhibits, excellent electrical performance, outstanding print quality and reduces the diffusion of the anti-oxidant into the charge generator layer.
    Type: Application
    Filed: December 16, 2002
    Publication date: June 17, 2004
    Applicant: Xerox Corporation
    Inventors: Anthony M. Horgan, Satchidanand Mishra, Robert C.U. Yu, Kathleen M. Carmichael, Kent J. Evans, Timothy J. Fuller, Colleen A. Helbig, John F. Yanus, Damodar M. Pai, Karen S. Garland