Patents by Inventor Cindy C. Chen

Cindy C. Chen 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: 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
  • Patent number: 7115345
    Abstract: According to the present invention is an electrophotographic imaging member which is a thin dual layer structure comprising a top layer of a durable and wear-resistant layer and a bottom layer which is bipolar. The electrophotographic imaging member of the invention may be top surface charge generating or bottom surface charge generating and in either case has an overall negative charging mode of operation.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: October 3, 2006
    Assignee: Xerox Corporation
    Inventors: Andronique Ioannidis, Timothy J. Fuller, Nancy L. Belknap, Markus R. Silvestri, Cindy C. Chen, Timothy P. Bender, John F. Graham, James M. Duff, Kenny-Tuan T. Dinh, John F. Yanus, James M. Markovics, Lanhui Zhang
  • Patent number: 7094509
    Abstract: A photoconductive imaging member comprised of a photogenerating layer, and a charge transport layer containing a binder and a fluoropolymer generated by the free radical polymerization of a fluoroalkyl(methyl)acrylate and an alkyl(methyl)acrylate.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: August 22, 2006
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Timothy J. Fuller, Cindy C. Chen, John F. Yanus, Robert C. U. Yu, Min-Hong Fu, Lanhui Zhang, Dennis J. Prosser, Susan M. VanDusen
  • 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
  • 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
  • Patent number: 6946227
    Abstract: A photoconductive imaging member containers of a supporting substrate, and thereover a single layer comprised of a mixture of a photogenerator component, a charge transport component, an electron transport component, and a polymer binder, and wherein the photogenerating component is a pigment.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: September 20, 2005
    Assignee: Xerox Corporation
    Inventors: Liang-Bih Lin, Richard H. Nealey, Ah-Mee Hor, James M. Duff, Timothy P. Bender, Andrew R. Melnyk, Andronique Ioannidis, Harold F. Hammond, Linda L. Ferrarese, Cindy C. Chen, James M. Markovics, Kenny-Tuan T. Dinh
  • 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
  • Patent number: 6858363
    Abstract: A photoconductive imaging member comprised of a 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 metallic component and an electron transport component.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: February 22, 2005
    Assignee: Xerox Corporation
    Inventors: Nancy L. Belknap, Cindy C. Chen, Lanhui Zhang, Andronique Ioannidis, James M. Duff, John F. Graham, Timothy P. Bender
  • Patent number: 6824940
    Abstract: A photoconductive imaging member containing a hole blocking layer, a photogenerating layer, a charge transport layer, and thereover an overcoat layer comprised of a polymer with a low dielectric constant and charge transport molecules.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: November 30, 2004
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Markus R. Silvestri, Liang-Bih Lin, Cindy C. Chen
  • Publication number: 20040197685
    Abstract: A photoconductive imaging member comprised of a supporting substrate, and thereover a single layer comprised of a mixture of a photogenerator component, charge transport components, and a certain electron transport component, and a certain polymer binder.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 7, 2004
    Applicant: Xerox Corporation
    Inventors: Andronique loannidis, Nancy L. Belknap, Cindy C. Chen, Lanhui Zhang, Timothy P. Bender, John F. Graham, Ah-Mee Hor, James M. Duff
  • Publication number: 20040197686
    Abstract: A photoconductive imaging member comprised of a 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 metallic component and an electron transport component.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 7, 2004
    Applicant: Xerox Corporation
    Inventors: Nancy L. Belknap, Cindy C. Chen, Lanhui Zhang, Andronique Ioannidis, James M. Duff, John F. Graham, Timothy P. Bender
  • Patent number: 6797342
    Abstract: A method including: sonicating a stream containing a dispersion comprised of agglomerated primary particles; and filtering the resulting sonicated stream containing a dispersion comprised of de-agglomerated primary particles. An apparatus including: an ultrasonic adapter to ultrasonicate a stream of a liquid dispersion of agglomerated primary particles; and a filter member adapted to filter the resulting ultrasonicated stream containing a dispersion of de-agglomerated primary particles; and optionally a coater adapted to coat the resulting filtered stream containing a dispersion of de-agglomerated primary particles onto a receiver.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: September 28, 2004
    Assignee: Xerox Corporation
    Inventors: J Michael Sanchez, Paul C. Lincoln, John M. Hammond, Thomas A. Trabold, Cindy C. Chen, Jian Cai
  • 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
  • Publication number: 20040161682
    Abstract: A photoconductive imaging member containing a hole blocking layer, a photogenerating layer, a charge transport layer, and thereover an overcoat layer comprised of a polymer With a low dielectric constant and charge transport molecules.
    Type: Application
    Filed: February 19, 2003
    Publication date: August 19, 2004
    Applicant: Xerox Corporation
    Inventors: Jin Wu, Markus R. Silvestri, Liang-Bih Lin, Cindy C. Chen
  • Patent number: 6756169
    Abstract: A member including for example, a supporting layer and a single photogenerating layer, the photogenerating layer comprising particles including hydroxygallium phthalocyanine phthalocyanine Type V, x polymorph metal free phthalocyanine, or chlorogallium phthalocyanine dispersed in a matrix comprising an arylamine hole transporter and an electron transporter selected from the group consisting of N,N′bis(1,2-dimethylpropyl)-1,4,5,8-naphthalenetetracarboxylic diimide, 1,1′-dioxo-2-(4-methylphenyl)-6-phenyl-4-(dicyanomethylidene)thiopyran, and a quinone selected from the group consisting of carboxybenzylhaphthaquinone, and tetra (t-butyl) diphenoquinone, and mixtures thereof, and a film forming binder.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: June 29, 2004
    Assignee: Xerox Corporation
    Inventors: Liang-Bih Lin, Cindy C. Chen, James M. Duff, Timothy P. Bender, Harold F. Hammond, James M. Markovics, Linda L. Ferrarese, John S. Chambers, Anna M. Main
  • Publication number: 20040096761
    Abstract: A photoconductive imaging member containers of a supporting substrate, and thereover a single layer comprised of a mixture of a photogenerator component, a charge transport component, an electron transport component, and a polymer binder, and wherein the photogenerating component is a pigment.
    Type: Application
    Filed: November 20, 2002
    Publication date: May 20, 2004
    Applicant: Xerox Corporation
    Inventors: Liang-Bih Lin, Richard H. Nealey, Ah-Mee Hor, James M. Duff, Timothy P. Bender, Andrew R. Melnyk, Andronique Ioannidis, Harold F. Hammond, Linda L. Ferrarese, Cindy C. Chen, James M. Markovics, Kenny-Tuan T. Dinh
  • Publication number: 20040063011
    Abstract: A photoconductive imaging member comprised of a supporting substrate, and thereover a single layer comprised of a mixture of a photogenerator component, a charge transport component, an electron transport component, and a polymer binder, and wherein the photogenerating component is a pigment.
    Type: Application
    Filed: September 24, 2002
    Publication date: April 1, 2004
    Applicant: Xerox Corporation
    Inventors: Liang-Bih Lin, Merlin E. Scharfe, Harold F. Hammond, Cindy C. Chen, Richard H. Nealey, Andronique Ioannidis, Andrew R. Melnyk, Kenny-Tuan T. Dinh
  • Publication number: 20040018439
    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: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Applicant: 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
  • Publication number: 20040018440
    Abstract: A member including for example, a supporting layer and a single photogenerating layer, the photogenerating layer comprising particles including hydroxygallium phthalocyanine phthalocyanine Type V, x polymorph metal free phthalocyanine, or chlorogallium phthalocyanine dispersed in a matrix comprising an arylamine hole transporter and an electron transporter selected from the group consisting of N,N′bis(1,2-dimethylpropyl)-1,4,5,8-naphthalenetetracarboxylic diimide, 1,1′-dioxo-2-(4-methylphenyl)-6-phenyl-4-(dicyanomethylidene)thiopyran, and a quinone selected from the group consisting of carboxybenzylhaphthaquinone, and tetra (t-butyl) diphenoquinone, and mixtures thereof, and a film forming binder.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Applicant: Xerox Corporation
    Inventors: Liang-Bih Lin, Cindy C. Chen, James M. Duff, Timothy P. Bender, Harold F. Hammond, James M. Markovics, Linda L. Ferrarese, John S. Chambers, Anna M. Main
  • Patent number: 6656650
    Abstract: A member including, for example, a supporting layer and a single photogenerating layer, the photogenerating layer comprising particles including hydroxygallium phthalocyanine phthalocyanine Type V, x polymorph metal free phthalocyanine, or chlorogallium phthalocyanine dispersed in a matrix comprising an arylamine hole transporter and an electron transporter selected from the group consisting of N,N′bis(1,2-dimethylpropyl)-1,4,5,8-naphthalenetetracarboxylic diimide, 1,1′-dioxo-2-(4-methylphenyl)-6-phenyl-4-(dicyanomethylidene)thiopyran, and a quinone selected from the group consisting of carboxybenzylhaphthaquinone, and tetra (t-butyl) diphenoquinone, and mixtures thereof, and submicrometer size polytetrafluroethylene particles, and a film forming binder.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: December 2, 2003
    Assignee: Xerox Corporation
    Inventors: Liang-Bih Lin, Helen R. Cherniack, John S. Chambers, Anna M. Main, Huoy-Jen Yuh, Cindy C. Chen, James M. Duff, Timothy P. Bender