Patents by Inventor Mandakini Kanungo

Mandakini Kanungo 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: 9480980
    Abstract: An apparatus produces chemical assay devices from a hydrophilic substrate, hydrophobic materials, and a chemical reagent. The apparatus includes a first print zone that forms hydrophobic material in a predetermined arrangement on the hydrophilic substrate, a structure formation unit configured to enable the first layer of the hydrophobic material to penetrate the hydrophilic substrate.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: November 1, 2016
    Assignee: Xerox Corporation
    Inventors: Jing Zhou, Mandakini Kanungo, Nancy Y. Jia, Yaorong Wang, Sarah Vella
  • Patent number: 9452431
    Abstract: A chemical assay device includes a hydrophilic substrate and one or more hydrophobic structures that extend from a first side of the hydrophilic substrate to a second side of the hydrophilic substrate. A hydrophobic structure in the hydrophilic substrate forms a fluid barrier wall that extends from the first side of the hydrophilic substrate to the second side of the hydrophilic substrate with a deviation of less than 20° from a perpendicular axis between the first side and the second side. The hydrophobic structure is formed from a wax or a phase change ink.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: September 27, 2016
    Assignee: Xerox Corporation
    Inventors: Jing Zhou, Mandakini Kanungo, Nancy Y. Jia, Wei Hong
  • Patent number: 9447504
    Abstract: A process of patterning a conductive film. The process comprises providing a substrate comprising a conductive film positioned on a surface of the substrate. A hydrophilic primer layer is coated on the conductive film. Droplets of etchant are ejected from an inkjet printer in an imagewise pattern onto the primer layer to pattern the conductive film. The primer layer is removed from the substrate.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: September 20, 2016
    Assignee: XEROX CORPORATION
    Inventors: James R. Larson, Jeffrey J. Folkins, Chu-Heng Liu, Wayne A. Buchar, Mandakini Kanungo, Santokh Badesha
  • Publication number: 20160257865
    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 epoxy 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: Application
    Filed: May 12, 2016
    Publication date: September 8, 2016
    Inventors: Yanjia Zuo, Mandakini Kanungo, Hong Zhao, John R. Andrews, Pratima Gattu Naga Rao, Mark A. Cellura, Santokh S. Badesha
  • Patent number: 9427969
    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: Grant
    Filed: December 6, 2013
    Date of Patent: August 30, 2016
    Assignee: 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
  • Publication number: 20160243587
    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 fluorosilicone grafted to the crosslinked fluoroelastomer. The polymer coating has an ink contact angle of at least about 45 degrees and an ink slide angle of less than about 35 degrees.
    Type: Application
    Filed: May 5, 2016
    Publication date: August 25, 2016
    Inventors: MANDAKINI KANUNGO, VARUN SAMBHY, DAVID GERVASI, SANTOKH BADESHA, MATTHEW KELLY, PETER MICHAEL GULVIN
  • Patent number: 9415610
    Abstract: An apparatus for distributing a hydrophobic material in a substrate includes a first roller, second roller that engages the first roller to form a nip, a heater operatively connected to the first roller and configured to heat the first roller to a first temperature that is greater than a second temperature of the second roller, and a substrate transport configured to move a substrate through the nip at a predetermined velocity. The first roller engages a first side of the substrate and the second roller engages a second side of the substrate to enable the hydrophobic material to penetrate into the substrate.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: August 16, 2016
    Assignee: Xerox Corporation
    Inventors: Jason O'Neil, Jing Zhou, Mandakini Kanungo, Nancy Y. Jia, Paul J. McConville, Wei Hong
  • Publication number: 20160220999
    Abstract: A chemical assay device includes a hydrophilic substrate and one or more hydrophobic structures that extend from a first side of the hydrophilic substrate to a second side of the hydrophilic substrate. A hydrophobic structure in the hydrophilic substrate forms a fluid barrier wall that extends from the first side of the hydrophilic substrate to the second side of the hydrophilic substrate with a deviation of less than 20° from a perpendicular axis between the first side and the second side. The hydrophobic material in the first hydrophobic structure occupies more than 50% of a void volume fraction of the hydrophilic substrate.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 4, 2016
    Inventors: Jing Zhou, Mandakini Kanungo, Nancy Y. Jia, Wei Hong
  • Publication number: 20160220998
    Abstract: A chemical assay device includes a hydrophilic substrate and one or more hydrophobic structures that extend from a first side of the hydrophilic substrate to a second side of the hydrophilic substrate. A hydrophobic structure in the hydrophilic substrate forms a fluid barrier wall that extends from the first side of the hydrophilic substrate to the second side of the hydrophilic substrate with a deviation of less than 20° from a perpendicular axis between the first side and the second side. The hydrophobic structure is formed from a wax or a phase change ink.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 4, 2016
    Inventors: Jing Zhou, Mandakini Kanungo, Nancy Y. Jia, Wei Hong
  • Publication number: 20160176185
    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: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: Mandakini Kanungo, Santokh S. Badesha, David J. Gervasi, Phillip J. Wantuck, Anton Grigoryev, Kevin H. Taft, Xing Xin Liu
  • Patent number: 9365019
    Abstract: An apparatus for distributing a hydrophobic material in a hydrophilic substrate includes a first plate, a second plate, a heater operatively connected to the first plate and configured to heat the first plate to a first temperature that is greater than a second temperature of the second plate, and an actuator configured to move the first plate and second plate together with a hydrophilic substrate between the plates. The first plate and second plate form a temperature gradient to enable a hydrophobic material on one side of a hydrophilic substrate that faces the second plate to penetrate into the hydrophilic substrate towards the first plate.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: June 14, 2016
    Assignee: Xerox Corporation
    Inventors: Jing Zhou, Mandakini Kanungo, Nancy Y. Jia, Wei Hong
  • Patent number: 9365742
    Abstract: An article of manufacture comprising a substrate and an outer polymer coating on the substrate. The polymer coating comprises an oleophobic grafted polymer comprising a crosslinked fluoroelastomer group. A perfluorinated polyether is grafted to the crosslinked fluoroelastomer group.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: June 14, 2016
    Assignee: XEROX CORPORATION
    Inventors: David J. Gervasi, Mandakini Kanungo
  • Patent number: 9353290
    Abstract: An embodiment of the present disclosure is directed to an indirect printing apparatus. The indirect printing apparatus comprises an intermediate transfer member comprising a substrate and a surface layer disposed over the substrate. The surface layer comprises a fluoroelastomer-aminosilane grafted polymer and infrared absorptive filler materials. The indirect printing apparatus also comprises a coating mechanism for forming a 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 comprises a radiation source for at least partially drying the ink on the sacrificial coating formed on the intermediate transfer member.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: May 31, 2016
    Assignee: XEROX CORPORATION
    Inventors: Anthony S. Condello, Chu-Heng Liu, David J. Gervasi, Jeffrey Folkins, Santokh S. Badesha, Mandakini Kanungo, Palghat Ramesh, Paul McConville, Phillip Wantuck, Lifeng Chen
  • Patent number: 9353291
    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 fluorosilicone grafted to the crosslinked fluoroelastomer. The polymer coating has an ink contact angle of at least about 45 degrees and an ink slide angle of less than about 35 degrees.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: May 31, 2016
    Assignee: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Varun Sambhy, David Gervasi, Santokh Badesha, Matthew Kelly, Peter Michael Gulvin
  • Publication number: 20160145469
    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 fluorosilicone grafted to the crosslinked fluoroelastomer. The polymer coating has an ink contact angle of at least about 45 degrees and an ink slide angle of less than about 35 degrees.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 26, 2016
    Inventors: MANDAKINI KANUNGO, VARUN SAMBHY, DAVID GERVASI, SANTOKH BADESHA, MATTHEW KELLY, PETER MICHAEL GULVIN
  • Patent number: 9346048
    Abstract: A chemical assay device includes a hydrophilic substrate and one or more hydrophobic structures that extend from a first side of the hydrophilic substrate to a second side of the hydrophilic substrate. A hydrophobic structure in the hydrophilic substrate forms a fluid barrier wall that extends from the first side of the hydrophilic substrate to the second side of the hydrophilic substrate with a deviation of less than 20° from a perpendicular axis between the first side and the second side.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: May 24, 2016
    Assignee: Xerox Corporation
    Inventors: Jing Zhou, Mandakini Kanungo, Nancy Y. Jia, Wei Hong
  • Patent number: 9327519
    Abstract: An indirect printing process comprises providing an inkjet printing apparatus comprising an intermediate transfer member. A wet sacrificial coating composition is deposited onto the intermediate transfer member. The wet sacrificial coating composition is made from ingredients comprising: a waxy starch; at least one hygroscopic material; at least one surfactant; and a liquid carrier. The wet sacrificial coating composition is dried to form a dry sacrificial coating. Droplets of ink are ejected in an imagewise pattern onto the dry sacrificial coating. The ink is at least partially dried to form a substantially dry ink pattern. Both the substantially dry ink pattern and the sacrificial coating are transferred from the intermediate transfer member to a final substrate. At least one cross-linking agent is applied to cross-link the sacrificial coating.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: May 3, 2016
    Assignee: XEROX CORPORATION
    Inventors: James R. Larson, Jeffrey J. Folkins, Santokh S. Badesha, Mandakini Kanungo
  • Patent number: 9283795
    Abstract: An imaging member surface layer including between 55% and 95% fluorosilicone, between 5% and 20% infrared-absorbing material by weight, between 1% and 5% silica, between 0.15% and 0.35% catalyst and between 10% and 18% crosslinker by weight, based on the total weight of the surface layer. The surface layer has a thickness between 10 microns and 1 millimeter and a surface tension energy of 22 dynes/cm or less and a polar components of 5 dynes or less.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: March 15, 2016
    Assignee: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Anton Grigoryev, Phillip J. Wantuck, David J. Gervasi, Santokh S. Badesha
  • Publication number: 20160054229
    Abstract: This disclosure provides a workflow method and system associated with a paper-based sensor.
    Type: Application
    Filed: August 13, 2015
    Publication date: February 25, 2016
    Inventors: Nancy Y. Jia, Mandakini Kanungo, Wei Hong, Jing Zhou
  • Publication number: 20160057413
    Abstract: The present disclosure proposes a colorimetric method that couples sensor design with image processing to enable automated evaluation of test results obtained by paper-based sensors. The proposed method can match ink color and dye used in colorimetric reaction in terms of their absorption in spectral range (e.g., red, green, blue). A near-zero absorption channel can then be used to normalize absorption channels and construct a composite image.
    Type: Application
    Filed: July 15, 2015
    Publication date: February 25, 2016
    Applicant: Xerox Corporation
    Inventors: Jing Zhou, Nancy Y. Jia, Wei Hong, Mandakini Kanungo, Xing Liu