Patents by Inventor Edward F Grabowski

Edward F Grabowski 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: 9527224
    Abstract: Flexible members for use in imaging devices comprise a polymerizable release agent.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: December 27, 2016
    Assignee: Xerox Corporation
    Inventors: Edward F. Grabowski, Yuhua Tong
  • Patent number: 9228161
    Abstract: Disclosed are undercoat layers comprising a metal oxide, a polymer, and a citrate of Formula (I): wherein R1 is H, alkyl, or COR?; wherein R? is alkyl; and wherein R2, R3, and R4 are independently alkyl. The undercoat layers are useful in imaging members because they are easily separated from the substrate. This reduces the number of steps necessary to reclaim the substrate.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: January 5, 2016
    Assignee: XEROX CORPORATION
    Inventors: Yuhua Tong, Jin Wu, Robert P. Altavela, Edward F. Grabowski, Kent J. Evans, Adilson P. Ramos, Nancy L. Belknap, Helen R. Cherniack
  • Patent number: 9201353
    Abstract: According to various embodiments, the present teachings provide an intermediate transfer member including a layer having a phosphorous containing polyamideimide having dispersed therein a conductive additive. A method of manufacturing the intermediate transfer member is provided.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: December 1, 2015
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Edward F. Grabowski, Jin Wu, Robert J. Meyer
  • Patent number: 8992818
    Abstract: Described herein is a method of forming a seamless transfer member suitable for use with an image forming system. The method includes spray coating a UV curable polymer and conductive particles onto an inner surface of a rotating cylindrical mandrel. The UV curable polymer is cured with ultra violet energy. The cured UV polymer is removed from the cylindrical rotatable mandrel.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: March 31, 2015
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Edward A. Domm, Jin Wu, Geoffrey M. T. Foley, Edward F. Grabowski
  • Publication number: 20140323377
    Abstract: Disclosed are undercoat layers comprising a metal oxide, a polymer, and a citrate of Formula (I): wherein R1 is H, alkyl, or COR?; wherein R? is alkyl; and wherein R2, R3, and R4 are independently alkyl. The undercoat layers are useful in imaging members because they are easily separated from the substrate. This reduces the number of steps necessary to reclaim the substrate.
    Type: Application
    Filed: July 11, 2014
    Publication date: October 30, 2014
    Inventors: Yuhua Tong, Jin Wu, Robert P. Altavela, Edward F. Grabowski, Kent J. Evans, Adilson P. Ramos, Nancy L. Belknap, Helen R. Cherniack
  • Patent number: 8859667
    Abstract: Transparent or semi-transparent, electrically conductive anti-curl back coating composite for electrophotographic imaging member comprising a carbon nanotube complex and a polycarbonate binder are described along with processes for preparing them.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: October 14, 2014
    Assignee: Xerox Corporation
    Inventors: Edward F. Grabowski, Kock-Yee Law, Markus R. Silvestri, Donald J. Goodman, Dale S. Renfer, Ryan J. Ehmann, Kathleen M. Carmichael, Scott J. Griffin, Jonathan H. Herko, Michael S. Roetker
  • Publication number: 20140248482
    Abstract: According to various embodiments, the present teachings provide an intermediate transfer member including a layer having a phosphorous containing polyamideimide having dispersed therein a conductive additive. A method of manufacturing the intermediate transfer member is provided.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Applicant: XEROX CORPORATION
    Inventors: Yuhua Tong, Edward F. Grabowski, Jin Wu, Robert J. Meyer
  • Patent number: 8703291
    Abstract: The present teachings provide a fuser member. The fuser member includes a substrate layer and a surface layer disposed on the substrate layer. The substrate layer comprises a plurality of core-shell particles wherein the core is a conductive particle and the shell is a fluoroplastic dispersed in a fluoroelastomer.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: April 22, 2014
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Edward F. Grabowski, Lin Ma, Lanhui Zhang
  • Patent number: 8614038
    Abstract: The presently disclosed embodiments relate generally to a flexible imaging member having an anti-curl back coating comprising a liquid plasticizer, and the imaging member is substantially flat.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: December 24, 2013
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Edward F. Grabowski
  • Patent number: 8602523
    Abstract: Disclosed is an ink jet printhead comprising a plurality of channels, wherein the channels are capable of being filled with ink from an ink supply and wherein the channels terminate in nozzles on one surface of the printhead, the surface being coated with a coating composition comprising a fluorinated poly(amide-imide) copolymer.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: December 10, 2013
    Assignee: Xerox Corporation
    Inventors: Edward F Grabowski, Yuhua Tong
  • Publication number: 20130273373
    Abstract: The presently disclosed embodiments relate generally to an image forming apparatus comprising an overcoat layer disposed directly over in contact with the top circumferential surface of a seamed intermediate transfer belt, and methods for making the same. The overcoat layer, comprising a film forming A-B diblock copolymer and conductive particles dispersion, not only renders the seam area physical/mechanical/electrical continuity for achieving absolute belt surface imageability to function like a seamless intermediate transfer belt, it also provides increased mechanical strength to resist fatigue-bend cracking under normal dynamic intermediate transfer belt machine cycling conditions in the field. The overcoat of this disclosure thus helps to reduce wear and extend service life of the belt.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 17, 2013
    Applicant: XEROX CORPORATION
    Inventors: Robert C. U. Yu, Edward F. Grabowski, Francisco Lopez
  • Publication number: 20130202995
    Abstract: The presently disclosed embodiments relate generally to a flexible imaging member having an anti-curl back coating comprising a liquid plasticizer, and the imaging member is substantially flat.
    Type: Application
    Filed: February 6, 2012
    Publication date: August 8, 2013
    Applicant: XEROX CORPORATION
    Inventors: Robert C.U. Yu, Edward F. Grabowski
  • Patent number: 8465888
    Abstract: A photoconductor comprising a substrate, an undercoat layer, a photogenerating layer and a charge transport layer is described. The undercoat layer is disposed on the substrate and comprises a metal oxide, and a mixture of a phenolic resin and a cyclohexanecarboxylate.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: June 18, 2013
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Jin Wu, Edward F. Grabowski, Marc J. Livecchi
  • Patent number: 8465893
    Abstract: The presently disclosed embodiments relate generally to the formulation of an anticurl back coating layer that renders imaging apparatus flexible members and components their desirable flatness, for use in electrostatographic, including digital apparatuses. More particularly, the embodiments pertain to an imaging member comprising an anticurl back coating layer formulated to comprise conductive carbon nanotubes dispersion in a polymer blend comprising three film-forming thermoplastic polymers to: (a) render electrical conductivity effect for tribo-electrical charge elimination (b) impart static dissipation capability, and (c) provide surface energy lowering effect for contact friction reduction to ease imaging member belt drive as well as cutting tribo-electrical charge build-up under normal imaging member belt operational conditions in the field.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: June 18, 2013
    Assignee: Xerox Corporation
    Inventors: Edward F. Grabowski, Robert C. U. Yu, Kock-Yee Law, Yuhua Tong
  • Publication number: 20130120498
    Abstract: Disclosed is an ink jet printhead comprising a plurality of channels, wherein the channels are capable of being filled with ink from an ink supply and wherein the channels terminate in nozzles on one surface of the printhead, the surface being coated with a coating composition comprising a fluorinated poly(amide-imide) copolymer.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 16, 2013
    Applicant: XEROX CORPORATION
    Inventors: Edward F. Grabowski, Yuhua Tong
  • Publication number: 20130120499
    Abstract: Disclosed is an ink jet printhead comprising a plurality of channels, wherein the channels are capable of being filled with ink from an ink supply and wherein the channels terminate in nozzles on one surface of the printhead, the surface being coated with a coating composition comprising a siloxane-etherimide copolymer and a fluorinated nonionic surfactant.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 16, 2013
    Applicant: XEROX CORPORATION
    Inventors: Edward F. Grabowski, Yuhua Tong
  • Patent number: 8431292
    Abstract: The present embodiments are generally directed to an improved imaging member exhibiting various advantages over conventional imaging members. More specifically, the present embodiments are directed to an improved charge blocking layer formed from an aqueous-based coating solution which exhibits improved shelf life and coating properties, such as increased homogeneity and adhesion, and methods for making the same. The aqueous-based coating solution is environment-friendly and avoids the need to use more expensive organic solvents which involve higher safety risks in the manufacturing process.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: April 30, 2013
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Edward F. Grabowski
  • Patent number: 8372568
    Abstract: The disclosed embodiments are directed to a method for removing photoreceptor coatings from a rigid substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor, in order to recover it for re-use in photoreceptor manufacturing. More specifically, the invention discloses a photoreceptor substrate recovery methodology that includes the creation of an inner release layer over the substrate and followed by subjecting the rejected or used electrophotographic photoreceptor to a step of soaking in a non-toxic and environmentally-friendly stripping solution that separates the coatings from the substrate.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: February 12, 2013
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
  • Patent number: 8361685
    Abstract: The disclosed embodiments are directed to processes for removing photoreceptor coatings from a substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor. More specifically, the present embodiments discloses a photoreceptor coatings removal process comprises subjecting an electrophotographic photoreceptor to a stripping solution that separates the coatings from the substrate.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: January 29, 2013
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
  • Publication number: 20120244339
    Abstract: The present teachings provide a fuser member. The fuser member includes a substrate layer and a surface layer disposed on the substrate layer. The substrate layer comprises a plurality of core-shell particles wherein the core is a conductive particle and the shell is a fluoroplastic dispersed in a fluoroelastomer.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 27, 2012
    Applicant: XEROX CORPORATION
    Inventors: Jin Wu, Edward F. Grabowski, Lin Ma, Lanhui Zhang