Patents by Inventor Anthony M. Horgan
Anthony M. Horgan 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: 7005222Abstract: An imaging member having a charge transport layer with multiple regions is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein at least the top or uppermost transport layer comprises 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 of the same or different compounds from that included in the top or additional charge transport layer(s). The charge transport compound present in each layer may be 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: GrantFiled: December 16, 2003Date of Patent: February 28, 2006Assignee: Xerox CorporationInventors: Anthony M. Horgan, Satchidanand Mishra, Robert C. Yu, Richard L. Post, Edward F. Grabowski, Kathleen M. Carmichael, John R. Lambie
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Patent number: 6933089Abstract: A charge transport layer for an imaging member comprising a dual charge transport layer and wherein the charge transport layers comprise a photogenerating layer; (1) a first charge transport layer comprised of a charge transport component and a resin binder; and thereover and in contact with the first layer; (2) a second top charge transport layer comprised of a charge transport component, a resin binder and a hindered phenol dopant. The charge transport layer exhibits, excellent electrical performance, outstanding print quality and reduces the diffusion of the anti-oxidant into the charge generator layer.Type: GrantFiled: December 16, 2002Date of Patent: August 23, 2005Assignee: Xerox CorporationInventors: Anthony M. Horgan, Satchidanand Mishra, Robert C. U. Yu, Kathleen M. Carmichael, Kent J. Evans, Timothy J. Fuller, Colleen A. Helbig, John F. Yanus, Damodar M. Pai, Karen S. Garland
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Patent number: 6919154Abstract: A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer comprised of a polymer and a yellow dye of the formulaType: GrantFiled: May 5, 2003Date of Patent: July 19, 2005Assignee: Xerox CorporationInventors: Timothy J. Fuller, Satchidanand Mishra, John F. Yanus, Anthony M. Horgan, Geoffrey M. T. Foley, Huoy-Jen Yuh, Dale S. Renfer, Yuhua Tong, Kenny-Tuan T. Dinh, Markus R. Silvestri, John F. Graham
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Publication number: 20040224244Abstract: A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer comprised of a polymer and a yellow dye of the formula.Type: ApplicationFiled: May 5, 2003Publication date: November 11, 2004Applicant: Xerox CorporationInventors: Timothy J. Fuller, Satchidanand Mishra, John F. Yanus, Anthony M. Horgan, Geoffrey M. T. Foley, Huoy-Jen Yuh, Dale S. Renfer, Yuhua Tong, Kenny-Tuan T. Dinh, Markus R. Silvestri, John F. Graham
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Publication number: 20040214100Abstract: A photoconductive imaging member containing a photogenerating layer, a charge transport layer, or a plurality of charge transport layers, and which charge transport, especially the top charge transport layer contains a vinyl containing organic compound.Type: ApplicationFiled: April 24, 2003Publication date: October 28, 2004Applicant: Xerox CorporationInventors: Robert C.U. Yu, Satchidanand Mishra, Anthony M. Horgan, Richard L. Post, Yuhua Tong, Edward F. Grabowski, Kathleen M. Carmichael, Markus R. Silvestri
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Publication number: 20040173943Abstract: Multilayered web stock is directed toward a curved surface and at least one layer of the web stock is heated to a temperature above a glass transition temperature of the at least one layer of the web stock. The heating can occur just before or upon engaging the curved surface. The temperature of the at least one layer remains above the glass transition temperature while engaging the curved surface, allowing reshaping and/or realignment of the at least one layer relative to other layers of the web stock according to conformance to the curved surface. The web stock is cooled before it disengages from the curved surface. The heating can be done with a high power infrared lamp focused into a line across the web stock, and the cooling can be done with a cooled fluid jet. Additionally, a preheater can be employed, and a supplemental cooler can be used.Type: ApplicationFiled: March 7, 2003Publication date: September 9, 2004Applicant: Xerox CorporationInventors: Robert C.U. Yu, Satchidanand Mishra, Anthony M. Horgan, Richard L. Post, Edward F. Grabowski, Tsu-sen Chow, John A. Bergfjord, Miguel A. Boscan, John J. Darcy, Michael S. Roetker, Scott J. Griffin
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Publication number: 20040151999Abstract: An imaging member having a charge transport layer with multiple regions or layers is provided. The charge transport layer includes at least two charge transport layers coated from solutions of different components and concentrations, wherein the second (top) transport layer comprises a lower concentration of different charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the second (top) charge transport layer is a high mobility hole transport compound. The charge transport compound in each layer is dissolved or molecularly dispersed in an electrically inactive film forming polymer to form a solid solution. In such a construction, the resulting dual charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.Type: ApplicationFiled: December 12, 2003Publication date: August 5, 2004Applicant: Xerox CorporationInventors: Satchidanand Mishra, Houy Jen Yuh, Anthony M. Horgan, Markus R. Silvestri, Robert C.U. Yu, Yuhua Tong, Dale Renfer, Kenny-Tuan Dinh, Geoff Foley, Jack Yanus, Timothy Fuller
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Publication number: 20040126684Abstract: 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: ApplicationFiled: December 16, 2003Publication date: July 1, 2004Applicant: Xerox CorporationInventors: Anthony M. Horgan, Robert C.U. Yu, Satchidanand Mishra, Richard L. Post, Edward F. Grabowski, Kathleen M. Carmichael, John R. Lambie
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Publication number: 20040126685Abstract: An imaging member having a charge transport layer with multiple regions is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein at least the top or uppermost transport layer comprises 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 of the same or different compounds from that included in the top or additional charge transport layer(s). The charge transport compound present in each layer may be 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: ApplicationFiled: December 16, 2003Publication date: July 1, 2004Applicant: Xerox CorporationInventors: Anthony M. Horgan, Satchidanand Mishra, Robert C.U. Yu, Richard L. Post, Edward F. Grabowski, Kathleen M. Carmichael, John R. Lambie
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Publication number: 20040115545Abstract: A charge transport layer for an imaging member comprising a dual charge transport layer and wherein the charge transport layers comprise a photogenerating layer; (1) a first charge transport layer comprised of a charge transport component and a resin binder; and thereover and in contact with the first layer; (2) a second top charge transport layer comprised of a charge transport component, a resin binder and a hindered phenol dopant. The charge transport layer exhibits, excellent electrical performance, outstanding print quality and reduces the diffusion of the anti-oxidant into the charge generator layer.Type: ApplicationFiled: December 16, 2002Publication date: June 17, 2004Applicant: Xerox CorporationInventors: Anthony M. Horgan, Satchidanand Mishra, Robert C.U. Yu, Kathleen M. Carmichael, Kent J. Evans, Timothy J. Fuller, Colleen A. Helbig, John F. Yanus, Damodar M. Pai, Karen S. Garland
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Patent number: 6751435Abstract: A seamed or seamless intermediate transfer member comprising a layer having an oxidized charge transport molecule, a charge transport molecule, or mixtures thereof, wherein in the seamed embodiment, the seam adhesive may also include an oxidized charge transport molecule, a charge transport molecule, or mixtures thereof.Type: GrantFiled: December 13, 2001Date of Patent: June 15, 2004Assignee: Xerox CorporationInventors: Bing R. Hsieh, Robert C. U. Yu, Satchidanand Mishra, T. Edwin Freeman, Eugene A. Swain, Anthony M. Horgan, Huoy-Jen Yuh, Geoffrey M. T. Foley
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Patent number: 6652691Abstract: A process for providing an improved imaging member belt having a welded seam which exhibits greater resistance to dynamic fatigue induced seam cracking and delamination. An apparatus for achieving stress relaxation and eliminating protrusions in the seam region is also disclosed.Type: GrantFiled: October 28, 1999Date of Patent: November 25, 2003Assignee: Xerox CorporationInventors: Robert C. U. Yu, Satchidanand Mishra, Richard L. Post, Anthony M. Horgan, Bing R. Hsieh, Edward F. Grabowski, Donald C. VonHoene, Stephen T. Avery, Scott J. Griffin, Edward A. Domm
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Publication number: 20030143362Abstract: A seamed or seamless intermediate transfer member comprising a layer having an oxidized charge transport molecule, a charge transport molecule, or mixtures thereof, wherein in the seamed embodiment, the seam adhesive may also include an oxidized charge transport molecule, a charge transport molecule, or mixtures thereof.Type: ApplicationFiled: December 13, 2001Publication date: July 31, 2003Applicant: Xerox CorporationInventors: Bing R. Hsieh, Robert C.U. Yu, Satchidanand Mishra, T. Edwin Freeman, Eugene A. Swain, Anthony M. Horgan, Huoy-Jen Yuh, Geoffrey M. T. Foley
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Patent number: 6600888Abstract: A method including: (a) dispensing an electrically conductive liquid into a contact member permeable to the liquid; (b) rubbing the contact member and a surface against each other, at a contact length greater than a tangential contact length, to release the liquid from the contact member to wet the surface with the electrically conductive liquid in a layer ranging in thickness from about 1 to about 100 micrometers; and (c) electrifying the liquid at any time effective for imparting an electrical charge to the surface.Type: GrantFiled: November 2, 2001Date of Patent: July 29, 2003Assignee: Xerox CorporationInventors: Satchidanand Mishra, Zoran D. Popovic, Anthony M. Horgan, Robert C. U. Yu, Geoffrey M. T. Foley, Huoy-Jen Yuh, Eugene A. Swain
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Publication number: 20030086724Abstract: A method including: (a) dispensing an electrically conductive liquid into a contact member permeable to the liquid; (b) rubbing the contact member and a surface against each other, at a contact length greater than a tangential contact length, to release the liquid from the contact member to wet the surface with the electrically conductive liquid in a layer ranging in thickness from about 1 to about 100 micrometers; and (c) electrifying the liquid at any time effective for imparting an electrical charge to the surface.Type: ApplicationFiled: November 2, 2001Publication date: May 8, 2003Applicant: Xerox CorporationInventors: Satchidanand Mishra, Zoran D. Popovic, Anthony M. Horgan, Robert C.U. Yu, Geoffrey M.T. Foley, Huoy-Jen Yuh, Eugene A. Swain
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Publication number: 20020079049Abstract: A seamless flexible electrostatographic imaging member belt fabrication method comprising providing a flexible substrate support sheet, producing first desired features on a first portion of the substrate support sheet, including removing material from the substrate support sheet with first emissions, producing second desired features on a second portion of the substrate support sheet complementary to the first desired features, including removing material from the substrate support sheet with second emissions, overlapping the first and second desired features, bonding the first desired pattern with the second desired pattern to produce a seamed belt and applying at least one coating the substrate support sheet.Type: ApplicationFiled: December 14, 2001Publication date: June 27, 2002Applicant: Xerox CorporationInventors: Robert C.U. Yu, Anthony M. Horgan, Satchidanand Mishra, Donald C. Von Hoene, Bing R. Hsieh, Edward F. Grabowski, Richard L. Post, Kathleen M. Carmichael
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Publication number: 20020074520Abstract: A pattern fabrication apparatus includes a beam path for a beam to selectively bombard a target, a beam source producing the beam, a beam spreader that spreads the beam, a mask inducing a pattern on the beam, and a lens that can focus the beam onto the target. The apparatus can be used to manufacture seamless flexible electrostatographic imaging members by providing a flexible substrate support sheet, such as having a rectangular shape, producing first desired features on the support sheet, including removing material from the support sheet with first emissions, producing second desired features on the support sheet complementary to the first desired features, including removing material with second emissions, overlapping the first and second desired features, bonding the features to produce a seamed belt having substantially no added seam thickness, and applying at least one coating over the seamed belt.Type: ApplicationFiled: December 14, 2001Publication date: June 20, 2002Applicant: Xerox CorporationInventors: Robert C.U. Yu, Anthony M. Horgan, Satchidanand Mishra, Donald C. Von Hoene, Bing R. Hsieh, Edward F. Grabowski, Richard L. Post, Kathleen M. Carmichael
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Publication number: 20020074082Abstract: A seamless flexible electrostatographic imaging member belt fabrication method comprising providing a flexible substrate support sheet, such as with a rectangular shape, placing a template on the support sheet, producing first desired features on a first portion of the substrate support sheet, including removing material from the substrate support sheet with first emissions, producing second desired features on a second portion of the substrate support sheet complementary to the first desired features, including removing material from the substrate support sheet with second emissions, overlapping the first and second desired features, bonding the first desired pattern with the second desired pattern to produce a seamed substrate support belt having substantially no added seam thickness and applying at least one coating over the substrate support belt.Type: ApplicationFiled: December 14, 2001Publication date: June 20, 2002Applicant: Xerox CorporationInventors: Robert C.U. Yu, Anthony M. Horgan, Satchidanand Mishra, Donald C. Von Hoene, Bing R. Hsieh, Edward F. Grabowski, Richard L. Post, Kathleen M. Carmichael
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Patent number: 6376141Abstract: An electrophotographic imaging member with a charge generation section having separate layers of benzimidazole perylene photoconductive pigment and hydroxygallium ptalocyanine photoconductive pigment.Type: GrantFiled: April 13, 2001Date of Patent: April 23, 2002Assignee: Xerox CorporationInventors: Satchidanand Mishra, Anthony M. Horgan, Kathleen M. Carmichael, Steven P Nonkes
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Publication number: 20020045115Abstract: A photoconductor includes a charge transport layer coated over a charge generator layer. A hole transport molecule is intentionally added to the charge generator layer preventing migration of hole transport molecules from the charge transport layer to the charge generator layer.Type: ApplicationFiled: August 24, 2001Publication date: April 18, 2002Applicant: Xerox CorporationInventors: Kathleen M. Carmichael, Anthony M. Horgan, Satchidanand Mishra