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).

  • Publication number: 20150165758
    Abstract: An indirect printing apparatus is disclosed. The printing apparatus comprises an intermediate transfer member. A polyurethane based sacrificial coating is on the intermediate transfer member. The printing apparatus also comprises a coating mechanism for forming the sacrificial coating onto the intermediate transfer member and a drying station for drying the sacrificial coating. At least one ink jet nozzle is positioned proximate the intermediate transfer member and configured for jetting ink droplets onto the sacrificial coating formed on the intermediate transfer member. An ink processing station is configured to at least partially dry the ink on the sacrificial coating formed on the intermediate transfer member. The printing apparatus comprises a substrate transfer mechanism for moving a substrate into contact with the intermediate transfer member.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 18, 2015
    Applicant: XEROX CORPORATION
    Inventors: Varun Sambhy, Srinivas Mettu, Santokh S. Badesha, Chu-Heng Liu, Anthony S. Condello
  • Publication number: 20150158298
    Abstract: The present teachings describe a printhead assembly. The printhead assembly includes a first plate and a second plate stacked together. The printhead assembly includes a first adhesive between the first plate and the second plate for bonding the plates together. The printhead assembly includes a second adhesive surrounding an outer edge of the first adhesive wherein the second adhesive has an oxygen migration rate lower than an oxygen migration rate of the first adhesive. An oxygen sensitive component is contained within the outer edge of the first adhesive.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 11, 2015
    Applicant: XEROX CORPORATION
    Inventors: Pratima Gattu Naga Rao, Sean Campbell Hunter, Christopher Jon Laharty, Jonathan Robert Brick, John Milton Brookfield, Tony Russell Rogers, Michael Joel Edwards, Hong Zhao, Mandakini Kanungo, Yanjia Zuo, Daniel R. Hahn, Santokh S. Badesha, John R. Andrews
  • Patent number: 9050807
    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 and pigmented 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: May 14, 2013
    Date of Patent: June 9, 2015
    Assignee: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Hong Zhao, Yanjia Zuo, Santokh S. Badesha
  • Patent number: 9044989
    Abstract: A system and method are provided for forming and implementing book binding geometries as a function of image receiving medium stack thicknesses for automated book binding in image forming devices. The disclosed schemes optimize book binding employing a plurality of strip-like binding elements to form loops in a process that employs heat and pressure to reduce residual stresses in the strips as they are formed into loops. The disclosed schemes mechanically modify a process of bending individual book-binding elements in a manner that more effectively employs less expensive material elements to provide consistent and durable “right-sized” book binding of finished documents. A combination of heat and pressure are introduced with a molded structure that results in controlling a radius of formation to be consistently followed by the “folded” binding elements in order to relieve the stress and preserve the integrity of those binding elements in the finished product.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: June 2, 2015
    Assignee: Xerox Corporation
    Inventors: Bryan J. Roof, Santokh S. Badesha, Chu-heng Liu
  • Patent number: 9042796
    Abstract: There is described a transfer assist blade for an electrostatographic machine. The transfer assist blade includes a wear layer for contacting a copy sheet, an interior layer having a thickness of from about 150 microns to about 500 microns and a back layer comprising a thermoset polyimide having dispersed therein carbon particles such that an out surface of the back layer has a surface resistance of from about 1×108 ohms to about 9.99×108 ohms.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: May 26, 2015
    Assignee: Xerox Corporation
    Inventors: Eliud Robles Flores, David J. Gervasi, Michael S. Roetker, Santokh S. Badesha, Phillip J. Wantuck
  • Patent number: 9011594
    Abstract: A method for forming functionalized carbon black useful for uniform dispersion in a surface material of a printing system component includes providing carbon black; providing a fluoropolymer having a terminal amino group; and mixing the amino-terminated fluoropolymer and the carbon black, wherein the fluoropolymer is amino-terminated PDMS.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: April 21, 2015
    Assignee: Xerox Corporation
    Inventors: Mandakini Kanungo, Anton Grigoryev, David J. Gervasi, Santokh S. Badesha
  • Patent number: 9004648
    Abstract: Inkjet printheads containing a first plate, a second plate, and a cured adhesive composition disposed between and bonding the first plate and the second plate. The cured adhesive composition has a glass transition temperature of greater than about 115° C. and is stable when exposed to acrylate monomer. Also, inkjet printheads having a first plate, a second plate, and a cured thin film adhesive disposed between and bonding to both of the first plate and the second plate. The cured thin film adhesive contains a polyimide film disposed between a cured first adhesive layer and a cured second adhesive layer. Methods of preparing such inkjet printheads.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: April 14, 2015
    Assignee: Xerox Corporation
    Inventors: Yanjia Zuo, John R. Andrews, Pratima Gattu Naga Rao, Mandakini Kanungo, Hong Zhao, Santokh S. Badesha
  • Publication number: 20150092004
    Abstract: A method for forming functionalized carbon black useful for uniform dispersion in a surface material of a printing system component includes providing carbon black; providing a fluoropolymer having a terminal amino group; and mixing the amino-terminated fluoropolymer and the carbon black, wherein the fluoropolymer is amino-terminated PDMS.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: XEROX CORPORATION
    Inventors: Mandakini KANUNGO, Anton GRIGORYEV, David J. GERVASI, Santokh S. BADESHA
  • Patent number: 8985758
    Abstract: Described herein is a transfer member for use in aqueous ink jet printer. The transfer member includes an elastomeric material. The surface layer of the transfer member has been subjected to an energy treatment selected from the group including corona discharge, oxygen plasma discharge and electron beam discharge such that the surface layer possesses an aqueous ink contact angle of from about 25° to about 40°. The transfer member has a Shore A durometer of from about 20 to about 70. The ink jet printer is also described.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 24, 2015
    Assignee: Xerox Corporation
    Inventors: Srinivas Mettu, Mandakini Kanungo, Anthony S. Condello, Santokh S Badesha, Akshat Sharma, David Joseph Gervasi
  • Publication number: 20150063880
    Abstract: There is described a transfer assist blade for an electrostatographic machine. The transfer assist blade includes a wear layer for contacting a copy sheet, an interior layer having a thickness of from about 150 microns to about 500 microns and a back layer comprising a thermoset polyimide having dispersed therein carbon particles such that an out surface of the back layer has a surface resistance of from about 1×108 ohms to about 9.99×108 ohms.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 5, 2015
    Applicant: Xerox Corporation
    Inventors: Eliud Robles Flores, David J. Gervasi, Michael S. Roetker, Santokh S. Badesha, Phillip J. Wantuck
  • Publication number: 20150035903
    Abstract: Inkjet printheads containing a first plate, a second plate, and a cured adhesive composition disposed between and bonding the first plate and the second plate. The cured adhesive composition has a glass transition temperature of greater than about 115° C. and is stable when exposed to acrylate monomer. Also, inkjet printheads having a first plate, a second plate, and a cured thin film adhesive disposed between and bonding to both of the first plate and the second plate. The cured thin film adhesive contains a polyimide film disposed between a cured first adhesive layer and a cured second adhesive layer. Methods of preparing such inkjet printheads.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 5, 2015
    Applicant: XEROX CORPORATION
    Inventors: Yanjia Zuo, John R. Andrews, Pratima Gattu Naga Rao, Mandakini Kanungo, Hong Zhao, Santokh S. Badesha
  • Patent number: 8931885
    Abstract: A composition is made from ingredients comprising a fluorinated polyurethane and a copolymer of (i) a fluoroalkylene monomer unit and (ii) a dioxole monomer unit substituted with at least one substituent selected from the group consisting of a fluorine atom and a fluoroalkyl. The fluorinated polyurethane is a product of an isocyanate and a hydroxyl functionalized fluorinated polyether. The composition can be employed for making anti-wetting coatings used, for example, in printhead devices.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: January 13, 2015
    Assignee: Xerox Corporation
    Inventors: Varun Sambhy, Santokh S. Badesha, Michael S. Roetker, Jonathan H. Herko, Kyle B. Tallman
  • Publication number: 20150005454
    Abstract: An oleophobic grafted polymer includes a crosslinked fluoroelastomer and a perfluorinated polyether grafted to the crosslinked fluoroelastomer. A process for making an oleophobic grafted polymer includes crosslinking a fluoroelastomer with an aminofunctionalized silane and grafting an alkoxysilane-terminated perfluorinated polyether to the crosslinked fluoroelastomer.
    Type: Application
    Filed: September 4, 2013
    Publication date: January 1, 2015
    Applicant: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Matthew M. Kelly, Varun Sambhy, David J. Gervasi, Santokh S. Badesha, Chakkaravarthy Chidambareswarapattar, Michael S. Roetker
  • Publication number: 20150002592
    Abstract: A marking system surface material includes a fluoroelastomer including grafted fluorinated polymers. The fluoroelastomer is a perfluoropolyether-grafted fluoroelastomer formed using an alkoxy-terminated fluorosilicone component, and exhibiting high contact angle and low sliding angle.
    Type: Application
    Filed: June 30, 2013
    Publication date: January 1, 2015
    Applicant: XEROX CORPORATION
    Inventors: Mandakini KANUNGO, Chakkaravarthy CHIDAMBARESWARAPATTAR, David J. GERVASI, Santokh S. BADESHA, Matthew M. KELLY, Akshat SHARMA
  • Publication number: 20150002581
    Abstract: An inkjet printhead includes a front face having a polymer coating, the polymer coating including an oleophobic grafted polymer having a crosslinked fluoroelastomer and a perfluorinated polyether grafted to the crosslinked fluoroelastomer.
    Type: Application
    Filed: September 4, 2013
    Publication date: January 1, 2015
    Applicant: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Matthew M. Kelly, Varun Sambhy, David J. Gervasi, Santokh S. Badesha, Chakkaravarthy Chidambareswarapattar, Michael S. Roetker
  • Patent number: 8919252
    Abstract: An Ink-based digital printing system comprises an external fluid applicator for applying multi-component, multi-functional fountain solution to a surface of an imaging plate. The plate is image wise exposed using a high power laser to remove primary components of the fountain solution from select regions of the plate according to digital image data, leaving a layer of the secondary components at said select regions. The plate is then inked with ink useful in printing. The ink adheres to the select regions from which the primary components have been removed to form an ink image. The ink image is transferred at an image transfer step wherein the secondary components enable efficient transfer of the ink to a medium with reduced image quality defects. The multi-component fountain solution comprises primary components that reject or repel ink, and secondary components that function as a release agent.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: December 30, 2014
    Assignee: Xerox Corporation
    Inventors: Jack Lestrange, Santokh S. Badesha, Mandakini Kanungo, David J. Gervasi, Maryna Ornatska, Matthew M. Kelly
  • Publication number: 20140342160
    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: April 29, 2014
    Publication date: November 20, 2014
    Applicant: Xerox Corporation
    Inventors: Yanjia Zuo, Mandakini Kanungo, Hong Zhao, Pratima Gattu Naga Rao, Mark A. Cellura, Santokh S. Badesha, John R. Andrews
  • Publication number: 20140338833
    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 and pigmented 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: May 14, 2013
    Publication date: November 20, 2014
    Inventors: Mandakini Kanungo, Hong Zhao, Yanjia Zuo, Santokh S. Badesha
  • Publication number: 20140341677
    Abstract: A system and method are provided for forming and implementing book binding geometries as a function of image receiving medium stack thicknesses for automated book binding in image forming devices. The disclosed schemes optimize book binding employing a plurality of strip-like binding elements to form loops in a process that employs heat and pressure to reduce residual stresses in the strips as they are formed into loops. The disclosed schemes mechanically modify a process of bending individual book-binding elements in a manner that more effectively employs less expensive material elements to provide consistent and durable “right-sized” book binding of finished documents. A combination of heat and pressure are introduced with a molded structure that results in controlling a radius of formation to be consistently followed by the “folded” binding elements in order to relieve the stress and preserve the integrity of those binding elements in the finished product.
    Type: Application
    Filed: May 20, 2013
    Publication date: November 20, 2014
    Applicant: XEROX Corporation
    Inventors: Bryan J. ROOF, Santokh S. BADESHA, Chu-heng LIU
  • Publication number: 20140292930
    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, swell, and/or oxidize when exposed to certain inks such as ultraviolet inks and pigmented inks. An embodiment of the present teachings can include processing of an adhesive including a processes a particular adhesive comprising a cresol novolac resin and a dicydiandiamide curing agent using a particular process, such that the resulting epoxy adhesive is suitable for printhead applications.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 2, 2014
    Applicant: XEROX CORPORATION
    Inventors: Yanjia Zuo, Pratima Gattu Naga Rao, Mandakini Kanungo, Hong Zhao, Mark A. Cellura, Robertha Caroline Howell, Santokh S. Badesha, John R. Andrews