Patents by Inventor J. Robinson Cowdery-Corvan

J. Robinson Cowdery-Corvan 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: 9201318
    Abstract: The disclosure provides a flexible electrophotographic imaging member comprising a single novel polymer binder in the formulation of the imaging layers. In particular, the present embodiments provide multi-layered electrophotographic imaging members prepared by using the same polymer binder in the two contiguous imaging formation layers to improve mechanical and photoelectrical performance. The embodiments also include a process for making and using the imaging member.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: December 1, 2015
    Assignee: XEROX CORPORATION
    Inventors: Robert C. U. Yu, Stephen T. Avery, Jimmy E. Kelly, Mark Muscato, J. Robinson Cowdery-Corvan, Dennis J. Prosser
  • Patent number: 9017906
    Abstract: The disclosure provides a flexible electrophotographic imaging member having an optically clear, cross-linked anticurl back coating of melamine formaldehyde to effect complete and absolute imaging member flatness. In particular embodiments, the anticurl back coating further includes an organic or inorganic particle dispersion.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: April 28, 2015
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Mark Muscato, J. Robinson Cowdery-Corvan
  • Patent number: 9017908
    Abstract: The presently disclosed embodiments are directed to flexible imaging members used in electrophotographic imaging apparatuses. More particularly, the embodiments pertain to electrophotographic imaging members which have imaging layer(s) formulated to comprise of a novel polymer blended binder comprising a bisphenol type polycarbonate and an organic acid-containing copolyester doped into the polycarbonate which provides improved properties and performance to the resulting imaging member. The formulated imaging layer(s) may further include a plasticizer.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: April 28, 2015
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Stephen T. Avery, Jimmy E. Kelly, Mark Muscato, J. Robinson Cowdery-Corvan, David Skinner, Dennis J. Prosser
  • Publication number: 20150056546
    Abstract: The presently disclosed embodiments are directed to flexible imaging members used in electrophotographic imaging apparatuses. More particularly, the embodiments pertain to electrophotographic imaging members which have imaging layer(s) formulated to comprise of a novel polymer blended binder comprising a bisphenol type polycarbonate and an organic acid-containing copolyester doped into the polycarbonate which provides improved properties and performance to the resulting imaging member. The formulated imaging layer(s) may further include a plasticizer.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 26, 2015
    Applicant: XEROX CORPORATION
    Inventors: ROBERT C.U. YU, Stephen T. Avery, Jimmy E. Kelly, Mark Muscato, J. Robinson Cowdery-Corvan, David Skinner, Dennis J. Prosser
  • Publication number: 20150024310
    Abstract: The disclosure provides a flexible electrophotographic imaging member comprising a single novel polymer binder in the formulation of the imaging layers. In particular, the present embodiments provide multi-layered electrophotographic imaging members prepared by using the same polymer binder in the two contiguous imaging formation layers to improve mechanical and photoelectrical performance. The embodiments also include a process for making and using the imaging member.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 22, 2015
    Inventors: ROBERT C.U. YU, Stephen T. Avery, Jimmy E. Kelly, Mark Muscato, J. Robinson Cowdery-Corvan, Dennis J. Prosser
  • Publication number: 20150017577
    Abstract: The disclosure provides a flexible electrophotographic imaging member having an optically clear, cross-linked anticurl back coating of melamine formaldehyde to effect complete and absolute imaging member flatness. In particular embodiments, the anticurl back coating further includes an organic or inorganic particle dispersion.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 15, 2015
    Inventors: Robert C.U. Yu, Mark Muscato, J. Robinson Cowdery-Corvan
  • Patent number: 8815481
    Abstract: An imaging member includes a supporting substrate, an optional hole blocking layer, an optional adhesive layer, an imaging layer, and an overcoat layer, wherein the overcoat layer comprises a fluorosulfonamide. The overcoat layer can further include a charge transport compound and a melamine resin.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: August 26, 2014
    Assignee: Xerox Corporation
    Inventors: Jin Wu, David Skinner, Than Sorn, Lin Ma, Lanhui Zhang, Marissa Anne Linne, J. Robinson Cowdery-Corvan, Kenny-tuan T. Dinh
  • Publication number: 20140087298
    Abstract: An imaging member includes a supporting substrate, an optional hole blocking layer, an optional adhesive layer, an imaging layer, and an overcoat layer, wherein the overcoat layer comprises a fluorosulfonamide. The overcoat layer can further include a charge transport compound and a melamine resin.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 27, 2014
    Applicant: XEROX CORPORATION
    Inventors: Jin WU, David SKINNER, Than SORN, Lin MA, Lanhui ZHANG, Marissa Anne LINNE, J. Robinson COWDERY-CORVAN, Kenny-tuan T. DINH
  • Patent number: 8227154
    Abstract: A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover wherein the undercoat layer contains an aminosilane and a melamine polymer, a photogenerating layer, and at least one charge transport layer.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 24, 2012
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Sherri A Toates, J. Robinson Cowdery-Corvan, Mark Muscato, Richard A Williams, Marc J Livecchi, Linda L Ferrarese
  • Patent number: 8227155
    Abstract: A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover, wherein the undercoat layer contains an aminosilane and an epoxysilane, a photogenerating layer, and at least one charge transport layer.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 24, 2012
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Sherri A Toates, J. Robinson Cowdery-Corvan, Mark Muscato, Richard A Williams, Marc J Livecchi, Linda L Ferrarese
  • Patent number: 8071267
    Abstract: A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover wherein the undercoat layer contains an aminosilane and a phenol polysulfide, a photogenerating layer, and at least one charge transport layer.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: December 6, 2011
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kathleen M Carmichael, J. Robinson Cowdery-Corvan, David M Skinner, Jean D Van Epps, Jr., Richard A Williams
  • Patent number: 8053151
    Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a suitable phosphonate.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: November 8, 2011
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Markus R Silvestri, J. Robinson Cowdery-Corvan, David M Skinner, Jean D Van Epps, Jr.
  • Patent number: 7989129
    Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer that contains at least one charge transport component, and where the photogenerating layer contains a hydroxyquinoline.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: August 2, 2011
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Dennis J Prosser, J. Robinson Cowdery-Corvan, Raymond K Crandall, David M Skinner, Jean D Van Epps, Jr.
  • Publication number: 20110027705
    Abstract: A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover, wherein the undercoat layer contains an aminosilane and an epoxysilane, a photogenerating layer, and at least one charge transport layer.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 3, 2011
    Applicant: XEROX CORPORATION
    Inventors: Jin Wu, Sherri A Toates, J. Robinson Cowdery-Corvan, Mark Muscato, Richard A Williams, Marc J Livecchi, Linda L Ferrarese
  • Publication number: 20110027706
    Abstract: A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover wherein the undercoat layer contains an aminosilane and a melamine polymer, a photogenerating layer, and at least one charge transport layer.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 3, 2011
    Applicant: XEROX CORPORATION
    Inventors: Jin Wu, Sherri A. Toates, J. Robinson Cowdery-Corvan, Mark Muscato, Richard A. Williams, Marc J. Livecchi, Linda L. Ferrarese
  • Publication number: 20100279215
    Abstract: A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover wherein the undercoat layer contains an aminosilane and a phenol polysulfide, a photogenerating layer, and at least one charge transport layer.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Applicant: XEROX CORPORATION
    Inventors: Jin Wu, Kathleen M. Carmichael, J. Robinson Cowdery-Corvan, David M. Skinner, Jean D. Van Epps, JR., Richard A. Williams
  • Patent number: 7811728
    Abstract: An imaging member including a substrate; thereover a charge generating layer; thereover a first charge transport layer comprising a small molecule charge transport material and a polymeric component selected from the group consisting of polyarylamine polyester, polyacylamine, and mixtures and combinations thereof; and a second charge transport layer disposed over the first charge transport layer, the second charge transport layer comprising a small molecule charge transport material and a binder, wherein the second charge transport layer is free of polyarylamine polyester and polyacylamine.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: October 12, 2010
    Assignee: Xerox Corporation
    Inventors: David M. Skinner, John F. Yanus, Markus R. Silvestri, M. John Hinckel, Kenny-Tuan T. Dinh, Susan VanDusen, Satish Parikh, J. Robinson Cowdery-Corvan
  • Publication number: 20090325091
    Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a suitable phosphonate.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: XEROX CORPORATION
    Inventors: Jin Wu, Markus R. Silvestri, J. Robinson Cowdery-Corvan, David M. Skinner, Jean D. Van Epps, JR.
  • Publication number: 20090246662
    Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer that contains at least one charge transport component, and where the photogenerating layer contains a hydroxyquinoline.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Applicant: XEROX CORPORATION
    Inventors: Jin Wu, Dennis J. Prosser, J. Robinson Cowdery-Corvan, Raymond K. Crandall, David M. Skinner, Jean D. Van Epps, JR.
  • Patent number: 7498108
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer, and wherein said photogenerating layer contains at least one thiophosphate.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: March 3, 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