Patents by Inventor Martin A. Abkowitz
Martin A. Abkowitz 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).
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Patent number: 6620476Abstract: A nonbleeding bias charging member having an outer layer on a supporting substrate with fluorinated carbon and zinc oxide dispersed in the outer layer material, where bleeding of contaminants to imaging members is decreased or eliminated.Type: GrantFiled: August 13, 1999Date of Patent: September 16, 2003Assignee: Xerox CorporationInventors: Ihor W. Tarnawskyj, Kock-Yee Law, Martin A. Abkowitz, Frederick E. Knier, Jr., James B. Maliborski
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Publication number: 20020086148Abstract: A nonbleeding bias charging member having an outer layer on a supporting substrate with fluorinated carbon and zinc oxide dispersed in the outer layer material, where bleeding of contaminants to imaging members is decreased or eliminated.Type: ApplicationFiled: August 13, 1999Publication date: July 4, 2002Inventors: IHOR W. TARNAWSKYJ, KOCK-YEE LAW, MARTIN A. ABKOWITZ, FREDERICK E. KNIER, JAMES B. MALIBORSKI
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Patent number: 6397034Abstract: An intermediate transfer member having a fluorinated carbon filled polyimide layer which exhibits controlled conductivity is set forth, and in embodiments, the fluorinated carbon filled polyimide layer is a substrate having an optional intermediate conformable layer thereon, and having on the intermediate layer, an optional outer release layer.Type: GrantFiled: August 29, 1997Date of Patent: May 28, 2002Assignee: Xerox CorporationInventors: Ihor W. Tarnawskyj, Joseph Mammino, Frederick E. Knier, Jr., Kock-Yee Law, Martin A. Abkowitz, Robert M. Ferguson
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Patent number: 6203855Abstract: A process for providing an outer layer on a supporting substrate including mixing an outer layer material with fluorinated carbon and zinc oxide to form a filled outer layer material, and providing at least one of the filled outer layer(s) onto the supporting substrate, where bleeding of contaminants to imaging members is decreased or eliminated.Type: GrantFiled: August 13, 1999Date of Patent: March 20, 2001Assignee: Xerox CorporationInventors: Ihor W. Tarnawskyj, Kock-Yee Law, Martin A. Abkowitz, Frederick E. Knier, Jr., James B. Maliborski
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Patent number: 6141516Abstract: A bias charging member capable of receiving a bias for contact charging a member to be charged, wherein the bias charging member has an electrically conductive core, an optional intermediate layer, and an outer surface layer comprising a fluorinated carbon filled fluoroelastomer is disclosed.Type: GrantFiled: June 28, 1996Date of Patent: October 31, 2000Assignee: Xerox CorporationInventors: Kock-Yee Law, Joseph Mammino, Gerald M. Fletcher, Martin A. Abkowitz, Ihor W. Tarnawskyj, Kathleen M. McGrane
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Patent number: 6103815Abstract: A composition comprising a latex fluorocarbon elastomer and fluorinated carbon, xerographic component surfaces comprising such latex fluorocarbon elastomer and fluorinated carbon compositions, and image forming apparatii including such xerographic components are disclosed herein.Type: GrantFiled: February 17, 1998Date of Patent: August 15, 2000Assignee: Xerox CorporationInventors: Joseph Mammino, Robert M. Ferguson, George J. Heeks, Arnold W. Henry, Santokh S. Badesha, Ihor W. Tarnawskyj, Frederick E. Knier, Jr., Martin A. Abkowitz, Kock-Yee Law
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Patent number: 6067430Abstract: A biasable component having a fluorinated carbon filled polymer foam layer which exhibits controlled electrical conductivity and improved hardness is set forth.Type: GrantFiled: March 2, 1998Date of Patent: May 23, 2000Assignee: Xerox CorporationInventors: Joseph Mammino, Kock-Yee Law, Gerald M. Fletcher, Martin A. Abkowitz, Ihor W. Tarnawskyj, Kathleen M. McGrane
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Patent number: 6066400Abstract: A biasable member having a fluorinated carbon filled polyimide layer which exhibits controlled electrical conductivity is disclosed, along with embodiments wherein the fluorinated carbon filled polyimide layer is a substrate, embodiments wherein the fluorinated carbon filled polyimide is a substrate having thereon a filled fluoropolymer outer layer, and embodiments wherein the fluorinated carbon filled polyimide layer is a substrate having thereon an intermediate metal layer, and an outer polymer layer.Type: GrantFiled: August 29, 1997Date of Patent: May 23, 2000Assignee: Xerox CorporationInventors: Kock-Yee Law, Gerald M. Fletcher, Ihor W. Tarnawskyj, Joseph Mammino, Martin A. Abkowitz, Frederick E. Knier, Jr.
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Patent number: 5976418Abstract: A conductive polymer composition selected from the group consisting ofa first composition includinga polymer containing halomethylated aromatic groups, anda charge transporting material selected from the group consisting ofat least one charge transport monomer containing arylamine groups,at least one charge transport polymer containing arylamine units in the main polymer chain,and mixtures thereof, anda second composition includingat least one monomer containing a halomethylated aromatic group,at least one charge transport monomer containing arylamine groups anda polymer binder, anda third composition including:at least one monomer containing a halomethylated aromatic group, andat least one charge transport polymer with arylamine units in the main polymer chain.The aforementioned compositions may be applied as coatings and used in high speed laser printing and related printing processes.Type: GrantFiled: November 5, 1998Date of Patent: November 2, 1999Assignee: Xerox CorporationInventors: Timothy J. Fuller, Damodar M. Pai, John F. Yanus, Paul J. DeFeo, Markus R. Silvestri, Ram S. Narang, William W. Limburg, Dale S. Renfer, Milan Stolka, Martin A. Abkowitz, Ralph A. Mosher
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Patent number: 5856013Abstract: Electrical components comprising a ohmic contact-providing layer and a charge transport layer wherein the ohmic contact-providing layer comprises a fluorinated carbon filled fluoropolymer.Type: GrantFiled: January 21, 1997Date of Patent: January 5, 1999Inventors: Martin A. Abkowitz, Frederick E. Knier, Jr., Ihor W. Tarnawskyj, Milan Stolka, Joseph Mammino, Kock-Yee Law
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Patent number: 5849399Abstract: A biasable transfer system member for use in an electrographic printing apparatus for attracting electrically charged particles from an imaging substrate to the biasable transfer system member includes an electrically conductive core and an outer layer of a fluorinated carbon filled elastomer wherein the fluorinated carbon has a fluorine content of about 10 to about 30 weight percent based on the weight of fluorinated carbon.Type: GrantFiled: April 19, 1996Date of Patent: December 15, 1998Assignee: Xerox CorporationInventors: Kock-Yee Law, Joseph Mammino, Gerald M. Fletcher, Martin A. Abkowitz, Ihor W. Tarnawskyj, Kathleen M. McGrane
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Patent number: 5837340Abstract: A fuser system member for use in an electrophotographic apparatus for fusing toner images to a copy substrate, the fuser member having a substrate, a heat generating layer provided thereon comprising a fluorinated carbon filled fluoroelastomer, and an outer toner release layer provided on the heat generating layer.Type: GrantFiled: August 30, 1996Date of Patent: November 17, 1998Assignee: Xerox CorporationInventors: Kock-Yee Law, Ihor W. Tarnawskyj, Joseph Mammino, Kathleen M. McGrane, Martin A. Abkowitz, Robert M. Ferguson, Frederick E. Knier, Jr.
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Patent number: 5795500Abstract: A coating or layer containing a fluorinated carbon filled fluoroelastomer wherein the resistivity of the fluorinated carbon filled fluoroelastomer is controlled. Specifically, the coating comprises fluorinated carbon and polymer component selected from vinylidenefluoride/hexafluoropropylene/tetrafluoroethelene/cure site monomer rubber and volume grafted fluoroelastomers.Type: GrantFiled: March 3, 1997Date of Patent: August 18, 1998Assignee: Xerox CorporationInventors: Kock-Yee Law, Ihor W. Tarnawskyj, Joseph Mammino, Martin A. Abkowitz, Frederick E. Knier, Jr.
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Patent number: 5777651Abstract: An apparatus for charging an ionographic member, comprising an electrically insulating substrate containing affixed thereto a plurality of electroded grooves each capable of retaining a single wettable fiber, thereby forming a collection of fibers in contact with the substrate; a resin layer that isolates said fibers from each other, and that adheres the fibers to the electroded grooves; providing an ionically conductive fluid to said collection of fibers; applying an electrical bias to said fibers thereby transporting ions through the fibers to the surface of said ionographic member and which ions charge said member.Type: GrantFiled: May 30, 1995Date of Patent: July 7, 1998Assignee: Xerox CorporationInventors: John S. Facci, Milan Stolka, Michael J. Levy, Martin A. Abkowitz, James M. Markovics
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Patent number: 5765085Abstract: A fixing apparatus having a fixing film for use in an electrophotographic apparatus for fusing toner images to a copy substrate, the fixing film comprising a fluorinated carbon filled fluoroelastomer, and in embodiments, the fixing film comprises an optional substrate, an optional intermediate layer provided thereon, and an outer fluorinated carbon filled fluoroelastomer layer provided on the intermediate layer.Type: GrantFiled: August 30, 1996Date of Patent: June 9, 1998Assignee: Xerox CorporationInventors: Kock-Yee Law, Ihor W. Tarnawskyj, Joseph Mammino, Kathleen M. McGrane, Martin A. Abkowitz, Robert M. Ferguson, Frederick E. Knier, Jr.
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Patent number: 5761595Abstract: A resistive transfer component having a fluorinated carbon filled fluoroelastomer, and in embodiments, the resistive transfer component with an optional polyimide substrate, and an optional outer silicone release layer.Type: GrantFiled: January 21, 1997Date of Patent: June 2, 1998Assignee: Xerox CorporationInventors: Ihor W. Tarnawskyj, Kock-Yee Law, Joseph Mammino, Robert M. Ferguson, Martin A. Abkowitz
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Patent number: 5753317Abstract: A process for preparing coatings or layers containing a fluorinated carbon filled fluoroelastomer wherein the resistivity of the fluorinated carbon filled fluoroelastomer is controlled.Type: GrantFiled: March 3, 1997Date of Patent: May 19, 1998Assignee: Xerox CorporationInventors: Kock-Yee Law, Ihor W. Tarnawskyj, Martin A. Abkowitz, Frederick E. Knier, Jr., Joseph Mammino
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Patent number: 5602626Abstract: An apparatus for applying an electrical charge to a charge retentive surface by transporting ions through an ionically conductive liquid and transferring the ions to the member to be charged across the liquid/charge retentive surface interface. The ionically conductive liquid is contacted with the charge retentive surface for depositing ions onto the charge retentive surface via a wetted donor blade supported within a conductive housing, wherein the housing is coupled to an electrical power supply for applying an electrical potential to the ionically conductive liquid. In one specific embodiment, the charging apparatus includes a support blade for urging the donor blade into contact with the charge retentive surface and a wiping blade for wiping any liquid from the surface of the charge retentive surface as may have been transferred to the surface at the donor blade/charge retentive surface interface.Type: GrantFiled: July 3, 1995Date of Patent: February 11, 1997Assignee: Xerox CorporationInventors: John S. Facci, Michael J. Levy, Joseph Mammino, Richard B. Lewis, Martin A. Abkowitz, James M. Markovics
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Patent number: 5554469Abstract: A process for changing layered imaging members by the transfer of ions thereto which comprises contacting the imaging member with a liquid developer comprised of a nonpolar liquid, and a mixture of surfactants of an ammonium block copolymer first surfactant of the formula ##STR1## wherein X.sup.- is a conjugate base or anion of a strong acid; R is hydrogen or alkyl; R' is alkyl; R" is an alkyl group containing from about 6 to about 20 carbon atoms; and y and x represent the number average degree of polymerization (DP) wherein the ratio of y to x is in the range of from about 10 to 2 to about 1,000 to 200; and a second surfactant component of the formula ##STR2## wherein R.sub.1 is selected from the group consisting of hydrogen and alkyl, and n is 0 (zero), 1, 2, 3, or 4.Type: GrantFiled: December 1, 1995Date of Patent: September 10, 1996Assignee: Xerox CorporationInventors: James R. Larson, John S. Facci, Martin A. Abkowitz, Joseph Mammino, Milan Stolka, John W. Spiewak
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Patent number: 5510879Abstract: A process for charging layered imaging members by the transfer of ions thereto from an ionically conductive medium.Type: GrantFiled: May 27, 1994Date of Patent: April 23, 1996Assignee: Xerox CorporationInventors: John S. Facci, Richard B. Lewis, Milan Stolka, Martin A. Abkowitz, Michael J. Levy, Joseph Mammino, Michael M. Shahin