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).

  • Thiophosphate and antioxidant containing photoconductors
    Patent number: 7491480
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the at least one charge transport layer contains at least one thiophosphate.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: February 17, 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
  • Titanyl phthalocyanine photoconductors
    Patent number: 7485398
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component wherein the at least one charge transport component is comprised of aryl amine molecules of the formula wherein X and Y are each independently alkyl, alkoxy, aryl, a halogen, and wherein the photogenerating layer contains a titanyl phthalocyanine prepared by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with monohalobenzene.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: February 3, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, John F. Yanus, Satish R. Parikh, Anthony M. Horgan, Kent J Evans, Geoffrey M T. Foley, Satchidanand Mishra, Markus R. Silvestri, J. Robinson Cowdery-Corvan, David M. Skinner, Edward F. Grabowski, Kathleen M. Carmichael, Yonn K. Rasmussen, Donald J. Goodman, Liang-Bih Lin
  • Imaging members and process for preparing same
    Publication number: 20080131799
    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: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    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
  • Titanyl phthalocyanine photoconductors
    Publication number: 20070298342
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component wherein the at least one charge transport component is comprised of aryl amine molecules of the formula wherein X and Y are each independently alkyl, alkoxy, aryl, a halogen, and wherein the photogenerating layer contains a titanyl phthalocyanine prepared by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with monohalobenzene.
    Type: Application
    Filed: June 22, 2006
    Publication date: December 27, 2007
    Inventors: Jin Wu, John F. Yanus, Satish R. Parikh, Anthony M. Horgan, Kent J. Evans, Geoffrey M.T. Foley, Satchidanand Mishra, Markus R. Silvestri, J. Robinson Cowdery-Corvan, David M. Skinner, Edward F. Grabowski, Kathleen M. Carmichael, Yonn K. Rasmussen, Donald J. Goodman, Liang-Bih Lin
  • Thiophosphate containing photoconductors
    Publication number: 20070292793
    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: Application
    Filed: June 15, 2006
    Publication date: December 20, 2007
    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
  • Thiophosphate containing photoconductors
    Publication number: 20070292784
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the at least one charge transport layer contains at least one thiophosphate.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 20, 2007
    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