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).
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Patent number: 7163771Abstract: 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: GrantFiled: June 29, 2004Date of Patent: January 16, 2007Assignee: Xerox CorporationInventors: Andronique Ioannidis, Zoran D. Popovic, Nancy L. Belknap, John F. Graham, Cindy C. Chen, Peter A. Veneman
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Patent number: 7115345Abstract: 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: GrantFiled: February 17, 2004Date of Patent: October 3, 2006Assignee: Xerox CorporationInventors: 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
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Patent number: 7094509Abstract: 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: GrantFiled: July 18, 2003Date of Patent: August 22, 2006Assignee: Xerox CorporationInventors: 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
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Patent number: 7045262Abstract: 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: GrantFiled: January 22, 2004Date of Patent: May 16, 2006Assignee: Xerox CorporationInventors: 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
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Patent number: 6991880Abstract: 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: GrantFiled: July 23, 2002Date of Patent: January 31, 2006Assignee: Xerox CorporationInventors: Yuhua Tong, Timothy J. Fuller, Sean X. Pan, John F. Yanus, Cindy C. Chen, Min-Hong Fu, Dennis J. Prosser, Susan M. VanDusen
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Patent number: 6946227Abstract: 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: GrantFiled: November 20, 2002Date of Patent: September 20, 2005Assignee: Xerox CorporationInventors: 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
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Patent number: 6875548Abstract: 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: GrantFiled: February 19, 2003Date of Patent: April 5, 2005Assignee: Xerox CorporationInventors: 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
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Patent number: 6858363Abstract: 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: GrantFiled: April 4, 2003Date of Patent: February 22, 2005Assignee: Xerox CorporationInventors: Nancy L. Belknap, Cindy C. Chen, Lanhui Zhang, Andronique Ioannidis, James M. Duff, John F. Graham, Timothy P. Bender
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Patent number: 6824940Abstract: 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: GrantFiled: February 19, 2003Date of Patent: November 30, 2004Assignee: Xerox CorporationInventors: Jin Wu, Markus R. Silvestri, Liang-Bih Lin, Cindy C. Chen
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Publication number: 20040197685Abstract: 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: ApplicationFiled: April 4, 2003Publication date: October 7, 2004Applicant: Xerox CorporationInventors: Andronique loannidis, Nancy L. Belknap, Cindy C. Chen, Lanhui Zhang, Timothy P. Bender, John F. Graham, Ah-Mee Hor, James M. Duff
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Publication number: 20040197686Abstract: 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: ApplicationFiled: April 4, 2003Publication date: October 7, 2004Applicant: Xerox CorporationInventors: Nancy L. Belknap, Cindy C. Chen, Lanhui Zhang, Andronique Ioannidis, James M. Duff, John F. Graham, Timothy P. Bender
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Patent number: 6797342Abstract: 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: GrantFiled: September 15, 2000Date of Patent: September 28, 2004Assignee: Xerox CorporationInventors: J Michael Sanchez, Paul C. Lincoln, John M. Hammond, Thomas A. Trabold, Cindy C. Chen, Jian Cai
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Publication number: 20040175637Abstract: 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: ApplicationFiled: February 19, 2003Publication date: September 9, 2004Applicant: Xerox CorportionInventors: 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
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Publication number: 20040161682Abstract: 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: ApplicationFiled: February 19, 2003Publication date: August 19, 2004Applicant: Xerox CorporationInventors: Jin Wu, Markus R. Silvestri, Liang-Bih Lin, Cindy C. Chen
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Patent number: 6756169Abstract: 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: GrantFiled: July 23, 2002Date of Patent: June 29, 2004Assignee: Xerox CorporationInventors: 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
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Publication number: 20040096761Abstract: 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: ApplicationFiled: November 20, 2002Publication date: May 20, 2004Applicant: Xerox CorporationInventors: 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
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Publication number: 20040063011Abstract: 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: ApplicationFiled: September 24, 2002Publication date: April 1, 2004Applicant: Xerox CorporationInventors: Liang-Bih Lin, Merlin E. Scharfe, Harold F. Hammond, Cindy C. Chen, Richard H. Nealey, Andronique Ioannidis, Andrew R. Melnyk, Kenny-Tuan T. Dinh
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Publication number: 20040018439Abstract: 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: ApplicationFiled: July 23, 2002Publication date: January 29, 2004Applicant: Xerox CorporationInventors: Yuhua Tong, Timothy J. Fuller, Sean X. Pan, John F. Yanus, Cindy C. Chen, Min-Hong Fu, Dennis J. Prosser, Susan M. VanDusen
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Publication number: 20040018440Abstract: 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: ApplicationFiled: July 23, 2002Publication date: January 29, 2004Applicant: Xerox CorporationInventors: 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
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Patent number: 6656650Abstract: 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: GrantFiled: July 2, 2002Date of Patent: December 2, 2003Assignee: Xerox CorporationInventors: Liang-Bih Lin, Helen R. Cherniack, John S. Chambers, Anna M. Main, Huoy-Jen Yuh, Cindy C. Chen, James M. Duff, Timothy P. Bender