Patents by Inventor Santokh S. Badesha

Santokh S. Badesha 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: 9981458
    Abstract: A process to apply pressure sensitive adhesive to cut sheet media and eliminate a separate release liner. A Silicone release layer is applied during fusing on a top surface of cut media and then UV cured. A pressure sensitive adhesive layer is applied next. The cut sheets are then stacked and a compressive force is applied that transfers the pressure sensitive adhesive from one sheet to another and helps hold the stack together.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: May 29, 2018
    Assignee: Xerox Corporation
    Inventors: Douglas K Herrmann, Santokh S Badesha
  • Patent number: 9956760
    Abstract: A multilayer imaging blanket comprises a seamless belt. A silicone layer is disposed on the belt. The silicone layer comprises silicone rubber and a metal oxide filler. A fluoroelastomer surface layer is disposed on the silicone layer. Printing apparatuses employing the multilayer imaging blanket are also disclosed.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: May 1, 2018
    Assignee: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Santokh S. Badesha, David J. Gervasi, Phillip J. Wantuck, Anton Grigoryev, Kevin H. Taft, Xing Xin Liu
  • Patent number: 9956801
    Abstract: An imaging member surface contains a swellable elastomer doped with a release oil. This aids in complete transfer of ink to a receiving substrate when a thin film of release oil forms upon the surface during application of pressure at the nip.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 1, 2018
    Assignees: Xerox Corporation, Palo Alto Research Center Incorporated
    Inventors: Bing Hsieh, Timothy D. Stowe, Santokh S. Badesha, Chu-heng Liu, Mandakini Kanungo, Jorge A. Alvarez, Patrick J. Howe, Matthew M. Kelly, David J. Gervasi, Palghat Srinivas Ramesh
  • Patent number: 9950549
    Abstract: An apparatus and method of manufacturing a multiplayer image blanket with a platinum catalyzed fluorosilicone topcoat for a variable data lithography printing system. The blanket consists of multiple layers that may be: (A) a commercial carcass having a Sulphur free rubber outer layer, a suitable primer layer for improving the inter-layer adhesion, and the platinum catalyzed fluorosilicone topcoat; or (B) seamless polyimide substrate coated with a platinum cured silicone, a primer layer, and the fluorosilicone topcoat.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: April 24, 2018
    Assignee: Xerox Corporation
    Inventors: Mandakini Kanungo, Chenyu Lin, Kevin H. Taft, Yu Qi, Santokh S. Badesha
  • Publication number: 20180105705
    Abstract: A support material for use in additive manufacturing includes greater than about 30 weight percent up to about 70 weight percent of a C12 to C18 fatty alcohol ethoxylate, about 30 weight percent to about 70 weight percent of a C16 to C22 fatty alcohol, and a tackifier, a transition temperature measured as the temperature immediately before phase change, based on viscosity measurement, is less than about 65° C. A system for additive manufacturing includes such a support material and a build material, the ratio of C12 to C18 fatty alcohol ethoxylate to C16 to C22 fatty alcohol is selected for property matching of the support material to the build material. A method of additive manufacturing includes providing such a system and printing via an inkjet printer the support material and the build material to provide a precursor to a three-dimensional printed article.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 19, 2018
    Inventors: Naveen Chopra, Baharak Bakhshaei, Carolyn Moorlag, C. Geoffrey Allen, Mandakini Kanungo, Santokh S. Badesha, Seemit Praharaj
  • Publication number: 20180050532
    Abstract: Disclosed herein are methods for an ink-based digital printing system, comprising providing an imaging member a reimageable surface layer disposed on a structural mounting layer, the reimageable surface layer comprising a fluorosilicone elastomer and an infrared-absorbing filler comprising carbon black, and a plurality of surface defects on the reimageable surface layer, wherein the surface defects comprises carbon black exposed through the fluorosilicone elastomer of the reimageable surface layer. The method also comprises applying a coating of rejuvenating oil comprising an amino-functional organopolysiloxane to the reimageable surface layer, whereby at least a portion of the plurality of surface defects are coated by the amino-functional organopolysiloxane, thereby rejuvenating the imaging member.
    Type: Application
    Filed: July 21, 2017
    Publication date: February 22, 2018
    Applicants: XEROX CORPORATION, PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Timothy D. Stowe, Gregory B. Anderson, Santokh S. Badesha, Mandakini Kanungo
  • Patent number: 9895896
    Abstract: Disclosed herein are methods for reducing drooling, wetting or adhesion on a front face of an inkjet printhead configured for ejecting aqueous ink. The methods including disposing an anti-wetting, low adhesion coating onto a surface of the inkjet printhead front face, wherein the anti-wetting, low adhesion coating is a reaction product of a reactant mixture including a triisocyanante and a perfluoropolyether diol compound having an ethyoxylated spacer; and ejecting a drop of an aqueous ink having a surfactant from the printhead, wherein the aqueous ink drop exhibits a contact angle of greater than about 40° and a sliding angle of less than about 30° with a surface of the coating on the inkjet printhead front face.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: February 20, 2018
    Assignee: XEROX CORPORATION
    Inventors: Varun Sambhy, Kyle B. Tallman, Santokh S. Badesha, Michael S. Roetker, Jonathan H. Herko, Scott J. Griffin
  • Publication number: 20180043630
    Abstract: Methods and systems related to the three-dimensional (3D) printing of build structures including a plurality of 3D objects embedded within a support matrix are provided.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 15, 2018
    Inventors: Linn C. Hoover, Erwin Ruiz, Ron E. Dufort, Mandakini Kanungo, Santokh S. Badesha
  • Patent number: 9890306
    Abstract: An adhesive compound can include an uncured epoxy film having a curing temperature between about 80° C. and about 300° C. The uncured epoxy film can include a cresol novolac resin and a bisphenol A epoxy resin. The uncured epoxy film can have a thickness between about 0.1 mil and about 5 mil.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 13, 2018
    Assignee: XEROX CORPORATION
    Inventors: Yanjia Zuo, Mandakini Kanungo, Hong Zhao, John R. Andrews, Pratima Gattu Naga Rao, Mark A. Cellura, Santokh S. Badesha
  • Patent number: 9884480
    Abstract: Functional amine release agents displaying improved wetting as compared to standard silicone oils comprise a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl, in which the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g and the release agents have a viscosity of 20 cSt and 10 cSt. In an in-line tandem print system, the 20 cSt release agent is used in the upstream print engine while the 10 cSt release agent is used in the downstream print engine.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: February 6, 2018
    Assignee: Xerox Corporation
    Inventors: Jason M. LeFevre, Paul J. McConville, James M. Chappell, Joanne L. Lee, Rachael L. McGrath, Santokh S. Badesha
  • Publication number: 20180029351
    Abstract: An apparatus and method of manufacturing a fluorosilicone composite for a variable data lithography imaging member surface layer. Examples of the fluorosilicone composite include a first part and a second part, the first part having fluorosilicone, carbon black, silica and butyl acetate, the second part having a platinum catalyst, a crosslinker, butyl acetate and an inhibitor. The first part may also include a dispersant (e.g., a polyoxyalkylene amine derivative) that removes a need for shaking the dispersion by paint shaker and instead allows a more manufacture friendly roll ball milling process. The dispersant will also help in stabilizing the fluorosilicone composite for scaled up production.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 1, 2018
    Inventors: Santokh S. BADESHA, Mandakini KANUNGO, Kevin H. TAFT, Yu QI, Chenyu LIN
  • Publication number: 20170341452
    Abstract: An apparatus and method of manufacturing a multiplayer image blanket with a platinum catalyzed fluorosilicone topcoat for a variable data lithography printing system. The blanket consists of multiple layers that may be: (A) a commercial carcass having a Sulphur free rubber outer layer, a suitable primer layer for improving the inter-layer adhesion, and the platinum catalyzed fluorosilicone topcoat; or (B) seamless polyimide substrate coated with a platinum cured silicone, a primer layer, and the fluorosilicone topcoat.
    Type: Application
    Filed: May 27, 2016
    Publication date: November 30, 2017
    Inventors: Mandakini KANUNGO, Chenyu LIN, Kevin H. TAFT, Yu QI, Santokh S. BADESHA
  • Patent number: 9744757
    Abstract: Disclosed herein are methods for an ink-based digital printing system, comprising providing an imaging member a reimageable surface layer disposed on a structural mounting layer, the reimageable surface layer comprising a fluorosilicone elastomer and an infrared-absorbing filler comprising carbon black, and a plurality of surface defects on the reimageable surface layer, wherein the surface defects comprises carbon black exposed through the fluorosilicone elastomer of the reimageable surface layer. The method also comprises applying a coating of rejuvenating oil comprising an amino-functional organopolysiloxane to the reimageable surface layer, whereby at least a portion of the plurality of surface defects are coated by the amino-functional organopolysiloxane, thereby rejuvenating the imaging member.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: August 29, 2017
    Assignees: XEROX CORPORATION, PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Timothy D. Stowe, Gregory B. Anderson, Santokh S. Badesha, Mandakini Kanungo
  • Publication number: 20170225472
    Abstract: Disclosed herein are methods for reducing drooling, wetting or adhesion on a front face of an ink jet printhead configured for ejecting aqueous ink. The methods including disposing an anti-wetting, low adhesion coating onto a surface of the ink jet printhead front face, wherein the anti-wetting, low adhesion coating is a reaction product of a reactant mixture comprising a triisocyanante and a perfluoropolyether diol compound comprising an ethyoxylated spacer; and ejecting a drop of an aqueous ink comprising a surfactant from the printhead, wherein the aqueous ink drop exhibits a contact angle of greater than about 40° and a sliding angle of less than about 30° with a surface of the coating on the ink jet printhead front face.
    Type: Application
    Filed: April 25, 2017
    Publication date: August 10, 2017
    Applicant: XEROX CORPORATION
    Inventors: Varun Sambhy, Kyle B. Tallman, Santokh S. Badesha, Michael S. Roetker, Jonathan H. Herko, Scott J. Griffin
  • Patent number: 9718964
    Abstract: A sacrificial coating on an intermediate transfer member of an aqueous ink imaging system is disclosed. The sacrificial coating is made from ingredients comprising: a waxy starch; at least one polycarboxylic acid cross-linking agent; at least one hygroscopic material; and at least one surfactant.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: August 1, 2017
    Assignee: Xerox Corporation
    Inventors: James R. Larson, Jeffrey J. Folkins, Mandakini Kanungo, Santokh S. Badesha
  • Patent number: 9690247
    Abstract: Printers include (among other components) a sheet path transporting printable media and a printing engine positioned within the sheet path. The printing engine prints markings on the printable media. A first roller is positioned within the sheet path, and the first roller has a harder outer surface. A second roller is positioned parallel to the first roller within the sheet path. The second roller has a softer outer surface relative to the harder outer surface. The first roller and the second roller form a decurling nip decurling sheets that have exited the printing engine. The harder outer surface comprises stainless steel having a metal plasma coating.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: June 27, 2017
    Assignee: Xerox Corporation
    Inventors: Jason M. LeFevre, Santokh S. Badesha, David A. VanKouwenberg
  • Patent number: 9676962
    Abstract: Exemplary embodiments provide anti-wetting, low adhesion coatings for use with aqueous ink jet printheads. Exemplary embodiments directed to aqueous ink jet printheads with the anti-wetting, low adhesion coating on the front face thereof and methods for reducing drooling, wetting or adhesion on a front face of an ink jet printhead configured for ejecting aqueous ink are also described.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: June 13, 2017
    Assignee: XEROX CORPORATION
    Inventors: Varun Sambhy, Kyle B. Tallman, Santokh S. Badesha, Michael S. Roetker, Jonathan H. Herko, Scott J. Griffin
  • Patent number: 9649834
    Abstract: This disclosure is directed to a material composition that may be usable as a surface component in a plate design for use in variable data digital lithographic image forming devices. The disclosed material composition incorporates infra-red (IR) absorbing filler materials, including carbon black filler material particles in a fluorosilicone polymer or elastomer. The inclusion of the disclosed carbon black material compositions promotes precise heating in a patterning step for a layer of dampening fluid while minimizing harmful byproduct emissions including emissions of trifluoropropionaldehyde (TFPA) resulting from localized heating of a principally fluorosilicone imaging layer. The disclosed homogeneously-dispersed carbon black particles are particularly usable for improving operational characteristics of fluorosilocone-based reimageable surface layers of imaging members employed in the variable data digital lithographic image forming devices.
    Type: Grant
    Filed: June 25, 2016
    Date of Patent: May 16, 2017
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Santokh S. Badesha, Mandakini Kanungo
  • Publication number: 20170129240
    Abstract: A method for forming an ink jet printhead comprises processing an epoxy adhesive such that negative effects from physical contact with particular inks are reduced or eliminated. Conventional adhesives processed using conventional techniques are known to gain weight and squeeze out when exposed to certain inks such as ultraviolet inks, solid inks, and aqueous inks. An embodiment of the present teachings can include processing of a particular adhesive such that the resulting epoxy adhesive is suitable for printhead applications.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 11, 2017
    Applicant: XEROX CORPORATION
    Inventors: Yanjia Zuo, Mandakini Kanungo, Hong Zhao, Pratima Gattu Naga Rao, Mark A. Cellura, Santokh S. Badesha, John R. Andrews
  • Patent number: 9623660
    Abstract: A method for forming an ink jet printhead comprises processing an epoxy adhesive such that negative effects from physical contact with particular inks are reduced or eliminated. Conventional adhesives processed using conventional techniques are known to gain weight and squeeze out when exposed to certain inks such as ultraviolet inks, solid inks, and aqueous inks. An embodiment of the present teachings can include processing of a particular adhesive such that the resulting epoxy adhesive is suitable for printhead applications.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: April 18, 2017
    Assignee: Xerox Corporation
    Inventors: Yanjia Zuo, Mandakini Kanungo, Hong Zhao, Pratima Gattu Naga Rao, Mark A. Cellura, Santokh S. Badesha, John R. Andrews