Patents by Inventor Kathleen M. Carmichael

Kathleen M. Carmichael 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: 7468229
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl thioether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is a number of from about 1 to about 10; and wherein a thiophosphate is contained in the photogenerating layer.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: December 23, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
  • Patent number: 7462432
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl thioether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, aryl, alkoxy, and halogen; n is a number of from about 1 to about 10; and a thiophosphate.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: December 9, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
  • Patent number: 7459250
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl ether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is a suitable number of from about 1 to about 10.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: December 2, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin
  • Patent number: 7459251
    Abstract: An imaging member comprising a barrier or under-layer intermediate a photogenerating layer and charge transport layer to reduce charge deficiency spots. The barrier under-layer comprises a film forming polymer binder selected from a conductive polymer binder, a non-conductive polymer binder, or mixtures thereof. Optionally, the barrier layer can include a small amount of a charge transport material.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: December 2, 2008
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Kathleen M. Carmichael, Yuhua Tong, Anthony M. Horgan, Edward F. Grabowski, Richard L. Post, Robert C. U. Yu, Dennis J. Prosser, Edward Domm, Min-Hong Fu
  • Patent number: 7452643
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is a number of from about 1 to about 10; and wherein a thiophosphate is contained in the photogenerating layer.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: November 18, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
  • Patent number: 7445876
    Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer of at least one charge transport component, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10, and an optional antioxidant; and wherein a thiophosphate is contained in the photogenerating layer.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: November 4, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
  • Publication number: 20080220349
    Abstract: A photoconductor containing a supporting substrate; an undercoat layer comprised of a mixture of an aminosilane and a halogenated polymer; a photogenerating layer; and at least one charge transport layer.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 11, 2008
    Inventors: Jin Wu, Satchidanand Mishra, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Michael A. Morgan, Kathleen M. Carmichael, Edward F. Grabowski, Liang-Bih Lin
  • Patent number: 7419750
    Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of esters of phosphoric acid in the anticurl back coating to reduce or eliminate static charge buildup in the imaging member and to improve image quality.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: September 2, 2008
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kathleen M. Carmichael, Edward F. Grabowski, Liang-bih Lin
  • Patent number: 7390598
    Abstract: An imaging member includes a conductive substrate, a charge generating layer, a charge transport layer, and an intermediate layer between the charge generating layer and the charge transport layer, the intermediate layer including a hole transport material, such as three different hole transfer materials, dispersed in a film forming binder, such as two different binder materials.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: June 24, 2008
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Yuhua Tong, Anthony M. Horgan, Kathleen M. Carmichael, Dennis J. Prosser, Richard L. Post, Edward F. Grabowski
  • Publication number: 20080145781
    Abstract: An imaging member has a crosslinked overcoat layer which holds fluorinated nanoparticles. The overcoat layer is formed from an overcoat solution comprising a polymer binder; a hole transport molecule; fluorinated nanoparticles; a fluorinated surfactant; a crosslinking agent; and a free radical initiator. The overcoat layer provides excellent wear resistance at a low cost.
    Type: Application
    Filed: October 27, 2006
    Publication date: June 19, 2008
    Inventors: Yuhua Tong, Satchidanand Mishra, Anthony M. Horgan, Richard L. Post, Kathleen M. Carmichael, Edward F. Grabowski
  • Publication number: 20080124639
    Abstract: A photoconductor containing an optional supporting substrate, a thiophosphate containing photogenerating layer, and a charge transport layer which includes a polyhedral oligomeric silsesquioxane (POSS)-containing material and an optional thiophosphate.
    Type: Application
    Filed: November 28, 2006
    Publication date: May 29, 2008
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Liang-Bih Lin
  • Publication number: 20080124640
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and a charge transport layer which includes a mixture of a polyhedral oligomeric silsesquioxane (POSS)-containing material and a thiophosphate.
    Type: Application
    Filed: November 28, 2006
    Publication date: May 29, 2008
    Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Liang-Bih Lin
  • Publication number: 20080107982
    Abstract: A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer; and wherein the photogenerating layer is comprised of at least one photogenerating pigment and a resin binder that is substantially insoluble in an alkylene halide like methylene chloride.
    Type: Application
    Filed: November 7, 2006
    Publication date: May 8, 2008
    Inventors: Jin Wu, Satchidanand Mishra, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Michael A. Morgan, Kathleen M. Carmichael, Edward F. Grabowski, Liang-Bih Lin
  • Publication number: 20080107984
    Abstract: A photoconductor containing an optional supporting substrate, a containing photogenerating layer, at least one thiophosphate containing charge transport layer, and a top overcoating crosslinked polymer layer in contact with and contiguous to the charge transport layer.
    Type: Application
    Filed: November 7, 2006
    Publication date: May 8, 2008
    Inventors: John F. Yanus, Jin Wu, Kenny-Tuan Dinh, Michael A. Morgan, Anthony M. Horgan, Kathleen M. Carmichael
  • Publication number: 20080107983
    Abstract: A photoconductor containing a thiophosphate photogenerating layer, and at least one charge transport layer, and a top polymeric overcoating layer in contact with and contiguous to a charge transport layer.
    Type: Application
    Filed: November 7, 2006
    Publication date: May 8, 2008
    Inventors: John F. Yanus, Jin Wu, Kenny-Tuan Dinh, Michael A. Morgan, Anthony M. Horgan, Kathleen M. Carmichael
  • Patent number: 7344809
    Abstract: An imaging member having a charge transport layer is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein the upper or additional transport layer(s) comprise a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be the same or different from that included in the additional charge transport layers. The charge transport compound in one or more of the layers is dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: March 18, 2008
    Assignee: Xerox Corporation
    Inventors: Anthony M. Horgan, Robert C. U. Yu, Satchidanand Mishra, Richard L. Post, Edward F. Grabowski, Kathleen M. Carmichael, John R. Lambie, Houy Jen Yuh, Timothy J. Fuller, John F. Yanus, Markus R. Silvestri, Yuhua Tong, Dale Renfer, Kenny-Tuan Tran Dinh, Geoffrey M.T. Foley
  • Publication number: 20080050665
    Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having a binder of high molecular weight that is included in one or more layers of an imaging member to impart coating consistency and to provide for increased mechanical strength and improved wear.
    Type: Application
    Filed: August 23, 2006
    Publication date: February 28, 2008
    Applicant: Xerox Corporation
    Inventors: Donald J. Goodman, Satish Parikh, Edward F. Grabowski, Kathleen M. Carmichael, David M. Skinner
  • Publication number: 20080020314
    Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of polyols in the anticurl back coating to reduce or eliminate static charge buildup in the imaging member and to improve image quality.
    Type: Application
    Filed: July 24, 2006
    Publication date: January 24, 2008
    Applicant: Xerox Corporation
    Inventors: Jin Wu, Kathleen M. Carmichael, Edward F. Grabowski, Liang-bih Lin
  • Publication number: 20080020309
    Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to the incorporation of thiophosphates in the anticurl back coating to reduce or eliminate static charge buildup in the imaging member and to improve image quality.
    Type: Application
    Filed: July 24, 2006
    Publication date: January 24, 2008
    Applicant: Xerox Corporation
    Inventors: Jin Wu, Geoffrey M.T. Foley, Satchidanand Mishra, Liang-bih Lin, Anthony M. Horgan, Kent J. Evans, Kathleen M. Carmichael, Edward F. Grabowski
  • Publication number: 20080020311
    Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to an additive of ammonium or phosphonium salts or mixtures thereof to reduce or eliminate static charge buildup in the imaging member and to improve image quality.
    Type: Application
    Filed: July 24, 2006
    Publication date: January 24, 2008
    Applicant: Xerox Corporation
    Inventors: Jin Wu, Kathleen M. Carmichael, Edward F. Grabowski, Liang-bih Lin