Patents by Inventor Markus Silvestri

Markus Silvestri 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).

  • Publication number: 20060222805
    Abstract: A seamed flexible belt having a substrate and a seam having interlocking seam members, wherein the interlocking seam members are held together by an adhesive having polyamide and an optional electrically conductive filler, for use in electrostatographic, contact electrostatic, digital and other like printing machines.
    Type: Application
    Filed: June 5, 2006
    Publication date: October 5, 2006
    Inventors: Ralph Mosher, T. Freeman, Theodore Lovallo, Damodar Pai, John Yanus, Timothy Fuller, Markus Silvestri, Gerald Fletcher, Antonio DeCrescentis, Ihor Tarnawskyj
  • Publication number: 20060120556
    Abstract: The amount of lateral charge migration (LCM) on a photoreceptor is quantified by measuring the average potential of a latent image formed on the photoreceptor surface. The surface is first uniformly charged, then exposed a first time to an image. After a waiting period during which LCM may occur, the surface is exposed a second time to the image. After another waiting period, the average potential is measured. The amount of LCM may be quantified by varying the waiting periods.
    Type: Application
    Filed: December 7, 2004
    Publication date: June 8, 2006
    Inventors: Markus Silvestri, Surendar Jeyadev, Satchidanand Mishra, M. Hinckel, Edward Domm, James Markovics
  • Publication number: 20060105264
    Abstract: A process for preparing an overcoat for an imaging member having a substrate, a charge transport layer, and an overcoat positioned on the charge transport layer, and the process includes combining a prepolymer having a reactive group selected from the group consisting of hydroxyl, carboxylic acid and amide groups, a melamine formaldehyde crosslinking agent, an acid catalyst, and an alcohol-soluble small molecule to form an overcoat solution; and subsequently providing the overcoat solution onto the charge transport layer to form an overcoat layer.
    Type: Application
    Filed: November 18, 2004
    Publication date: May 18, 2006
    Inventors: Kenny-Tuan Dinh, John Yanus, Kathleen Carmichael, Markus Silvestri, Yuhua Tong
  • Publication number: 20060099525
    Abstract: An electrostatographic imaging member formulated with a liquid carbonate is provided. The imaging electrostatographic member exhibits improved service life.
    Type: Application
    Filed: November 5, 2004
    Publication date: May 11, 2006
    Inventors: Robert Yu, Satchidanand Mishra, Anthony Horgan, Richard Post, Yuhua Tong, Edward Grabowski, Kathleen Carmichael, Markus Silvestri
  • Publication number: 20060099527
    Abstract: A photoconductive imaging member comprised of an optional 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 pyrolyzed polyacrylonitrile.
    Type: Application
    Filed: December 14, 2005
    Publication date: May 11, 2006
    Inventors: Timothy Fuller, Helen Cherniack, Damodar Pai, Markus Silvestri, John Yanus, Yuhua Tong, Dale Renfer, Kenny-Tuan Dinh, Merlin Scharfe, Steven Sterling
  • Publication number: 20060063080
    Abstract: A charge transport layer composition for a photoreceptor includes at least a binder, at least one arylamine charge transport material, e.g., N,N?-diphenyl-N,N?-bis(3-methylphenyl)-(2,2?-biphenyl)-4,4?-diamine, and at least one polymer containing carboxylic acid groups or groups capable of forming carboxylic acid groups. The charge transport layer forms a layer of photoreceptor, which also includes an optional anti-curl layer, a substrate, an optional hole blocking layer, an optional adhesive layer, a charge generating layer, and optionally one or more overcoat or protective layers.
    Type: Application
    Filed: September 21, 2004
    Publication date: March 23, 2006
    Applicant: XEROX CORPORATION
    Inventors: Yuhua Tong, Kenny-Tuan Dinh, Markus Silvestri, Michael Zak, John Yanus, Min-Hong Fu, David Skinner, Kathleen Carmichael, Colleen Helbig, Dale Renfer, John Bergfjord, Susan Van Dusen, Anthony Horgan, Jin Wu, Steven Sterling
  • Publication number: 20060014089
    Abstract: A charge transport layer composition for a photoreceptor includes at least a binder and a charge transport material of about 100% to about 40% by weight of a total of the charge transport layer N,N-dimethylphenyl)-4-biphenylamine and about 0% to about 60% N,N?-bis(3-methylphenyl)-(1,1?-biphenyl)-4,4?-diamine, and wherein the total charge transport material in the composition is 48% or less of the total solids of the composition. The charge transport layer forms a layer of a photoreceptor, which also includes an optional anti-curl layer, a substrate, an optional hole blocking layer, an optional adhesive layer, a charge generating layer, and optionally one or more overcoat or protective layers.
    Type: Application
    Filed: July 13, 2004
    Publication date: January 19, 2006
    Applicant: XEROX CORPORATION
    Inventors: Yuhua Tong, Kenny-Tuan Dinh, Markus Silvestri, Michael Zak, John Yanus, Min-Hong Fu, David Skinner, Kathleen Carmichael, Colleen Helbig, Dale Renfer, John Bergfjord, Susan Van Dusen
  • Publication number: 20060002747
    Abstract: A weldable intermediate transfer belt having a substrate with a homogeneous composition of polyaniline in an amount of from about 2 to about 25 percent by weight of total solids, and a thermoplastic polyimide in an amount of from about 75 to about 98 percent by weight of total solids, and the polyaniline has a particle size of from about 0.5 to about 5.0 microns, and an apparatus for forming images on a recording medium and incorporating the intermediate transfer belt.
    Type: Application
    Filed: July 2, 2004
    Publication date: January 5, 2006
    Inventors: Donald Goodman, Satish Parikh, Edward Grabowski, Matthew Torpey, M. Hinckel, Michael Roetker, Markus Silvestri, John Darcy, David Martin, Scott Griffin, Felix Santana, Robert Flanagan, Joellen Simone, Robert Yu, John Kerwawycz, Satchidanand Mishra
  • Publication number: 20050271958
    Abstract: A charge transport layer for an imaging member comprising a charge transport layer wherein the charge transport layer is coated in two passes and wherein the second pass comprises the application of a charge transport component and a hindered phenol covalently bonded to a polymer. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, and excellent print quality.
    Type: Application
    Filed: August 4, 2005
    Publication date: December 8, 2005
    Inventors: Yuhua Tong, Timothy Fuller, Colleen Helbig, Kent Evans, John Yanus, Karen Garland, Paul DeFeo, Anita Lynch, Kathleen Carmichael, Damodar Pai, Dale Renfer, Markus Silvestri
  • Publication number: 20050266326
    Abstract: 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: Application
    Filed: February 17, 2004
    Publication date: December 1, 2005
    Inventors: Andronique Ioannnidis, Timothy Fuller, Nancy Belknap, Markus Silvestri, Cindy Chen, Timothy Bender, John Graham, James Duff, Kenny-Tuan Dinh, John Yanus, James Markovics, Lanhui Zhang
  • Publication number: 20050250027
    Abstract: Disclosed is a process for the preparation of poly(vinylbenzyl alcohol) by, for example the hydrolysis of poly(vinylbenzyl acetate) in the presence of a basic catalyst in an organic solvent.
    Type: Application
    Filed: March 25, 2004
    Publication date: November 10, 2005
    Inventors: Timothy Fuller, Damodar Pai, John Yanus, Markus Silvestri, Kenny-Tuan Dinh, Yuhua Tong
  • Publication number: 20050214664
    Abstract: A photoconductive imaging member with linear and proportional collection efficiencies and substantially constant photoinduced characteristics comprised of a supporting substrate, and thereover in, for example, certain weight ratios, 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: Application
    Filed: March 23, 2004
    Publication date: September 29, 2005
    Inventors: Liang-Bih Lin, Surendar Jevadev, Markus Silvestri, James Markovics, Andronique Ioannidis, Linda Ferrarese, John Chambers, Anna Main
  • Publication number: 20050181290
    Abstract: An imaging member having a substrate, a charge transport layer having charge transport materials dispersed therein, and thereover, an overcoat layer comprising benzimidazole perylene.
    Type: Application
    Filed: February 13, 2004
    Publication date: August 18, 2005
    Inventors: Timothy Fuller, Kenny-Tuan Dinh, Markus Silvestri, John Yanus
  • Publication number: 20050175910
    Abstract: A photoconductive imaging member containing an optional supporting substrate, an optional hole blocking layer thereover, a photogenerating layer and a charge transport layer, and wherein the charge transport layer contains a phenol of, for example, the alternative formulas
    Type: Application
    Filed: February 10, 2004
    Publication date: August 11, 2005
    Inventors: John Yanus, Kenny-Tuan Dinh, Markus Silvestri, H. Goodbrand, M. Hinckel, Dale Renfer, Yuhua Tong
  • Publication number: 20050175914
    Abstract: A photoconductive imaging member comprised of an optional 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 pyrolyzed polyacrylonitrile.
    Type: Application
    Filed: February 9, 2004
    Publication date: August 11, 2005
    Inventors: Timothy Fuller, Helen Cherniack, Damodar Pai, Markus Silvestri, John Yanus, Yuhua Tong, Dale Renfer, Kenny-Tuan Dinh, Merlin Scharfe, Steven Sterling
  • Publication number: 20050170273
    Abstract: A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer a layer comprised of a polymer and a yellow dye of the formula
    Type: Application
    Filed: March 25, 2005
    Publication date: August 4, 2005
    Inventors: Timothy Fuller, Satchidanand Mishra, John Yanus, Anthony Horgan, Geoffrey Foley, Huoy-Jen Yuh, Dale Renfer, Yuhua Tong, Kenny-Tuan Dinh, Markus Silvestri, John Graham
  • Publication number: 20050164104
    Abstract: 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: Application
    Filed: January 22, 2004
    Publication date: July 28, 2005
    Inventors: Yuhua Tong, Satchidanand Mishra, Anthony Horgan, John Yanus, Dale Renfer, Robert Yu, Markus Silvestri, Cindy Chen, Lanhui Zhang