Patents by Inventor Kishor Purushottam Gadkaree

Kishor Purushottam Gadkaree 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).

  • Ultracapacitor With Improved Aging Performance
    Publication number: 20120257326
    Abstract: An electric double layer capacitor comprises first and second electrodes, each comprising respective first and second carbon materials having distinct pore size distributions. A pore volume ratio of the first carbon material is greater than a pore volume ratio of the second carbon material. The pore volume ratio R is defined as R=V1/V, where V1 is a total volume of pores having a pore size of less than 1 nm, and V is a total volume of pores having a pore size greater than 1 nm.
    Type: Application
    Filed: April 7, 2011
    Publication date: October 11, 2012
    Inventors: Kishor Purushottam Gadkaree, Kamjula Pattabhirami Reddy
  • GALLIUM NITRIDE SEMICONDUCTOR DEVICE ON SOI AND PROCESS FOR MAKING SAME
    Publication number: 20120252191
    Abstract: Methods and apparatus for producing a gallium nitride semiconductor on insulator structure include: bonding a single crystal silicon layer to a transparent substrate; and growing a single crystal gallium nitride layer on the single crystal silicon layer.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 4, 2012
    Inventors: Rajaram Bhat, Kishor Purushottam Gadkaree, Jerome Napierala, Linda Ruth Pinckney, Chung-En Zah
  • Process for making porous activated carbon
    Patent number: 8252716
    Abstract: A two-cycle thermal process for making porous activated carbon materials involves a first step of heating a mixture of a carbon precursor/chemical additive in a first heating cycle at a first temperature to cause gas liberation and volumetric expansion of the mixture, and heating the carbon material produced in the first step in a second heating cycle at a second temperature to carbonize and activate the carbon precursor. During the second cycle, essentially no gas liberation or volumetric expansion is observed.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: August 28, 2012
    Assignee: Corning Incorporated
    Inventors: Kishor Purushottam Gadkaree, Jia Liu
  • ELECTROLYTE SYNTHESIS FOR ULTRACAPACITORS
    Publication number: 20120187324
    Abstract: A method of forming an electrolyte solution involves combining ammonium tetrafluoroborate and a quaternary ammonium halide in a liquid solvent to form a quaternary ammonium tetrafluoroborate and an ammonium halide. The ammonium halide precipitate is removed from the solvent to form an electrolyte solution. The reactants can be added step-wise to the solvent, and the method can include using a stoichiometric excess of the ammonium tetrafluoroborate to form a substantially halide ion-free electrolyte solution.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 26, 2012
    Inventor: Kishor Purushottam Gadkaree
  • Gallium nitride semiconductor device on SOI and process for making same
    Patent number: 8217498
    Abstract: Methods and apparatus for producing a gallium nitride semiconductor on insulator structure include: bonding a single crystal silicon layer to a transparent substrate; and growing a single crystal gallium nitride layer on the single crystal silicon layer.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: July 10, 2012
    Assignee: Corning Incorporated
    Inventors: Rajaram Bhat, Kishor Purushottam Gadkaree, Jerome Napierala, Linda Ruth Pinckney, Chung-En Zah
  • Halogenated activated carbon materials for high energy density ultracapacitors
    Patent number: 8198210
    Abstract: A method for producing a halogenated activated carbon material includes heating a natural, non-lignocellulosic carbon precursor in an inert or reducing atmosphere to form a first carbon material, mixing the first carbon material with an inorganic compound to form a mixture, heating the mixture in an inert or reducing atmosphere to incorporate the inorganic compound into the first carbon material, removing the inorganic compound from the first carbon material to produce an activated carbon material, and treating the activated carbon material with a halogen source to form a halogenated activated carbon material. The halogenated activated carbon material is suitable to form improved carbon-based electrodes for use in high energy density devices.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: June 12, 2012
    Assignee: Corning Incorporated
    Inventors: Kishor Purushottam Gadkaree, Shrisudersan Jayaraman
  • Porous Carbon for Electrochemical Double Layer Capacitors
    Publication number: 20120134070
    Abstract: An electrochemical double layer capacitor electrode comprising microporous carbon, wherein the microporous carbon comprises a median pore width of 1.2 nanometers or less, and a ratio of BET surface area to total pore volume greater than 2200 m2/cm3.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Inventors: Kishor Purushottam Gadkaree, Jia Liu
  • FLOW-THROUGH SORBENT COMPRISING A METAL SULFIDE
    Publication number: 20120115717
    Abstract: A flow-through sorbent comprising at least 30 wt % of a metal sulfide, and a binder. The sorbent may be used, for example, for the removal of a contaminant, such as mercury, from a fluid stream.
    Type: Application
    Filed: January 13, 2012
    Publication date: May 10, 2012
    Applicant: CORNING INCORPORATED
    Inventors: Kishor Purushottam Gadkaree, Anbo Liu, Joseph Frank Mach
  • Electrolyte System
    Publication number: 20120081837
    Abstract: An electrolyte system having a conductive salt dispersed in a solvent mixture, the solvent mixture having an organic nitrile solvent and a co-solvent. The concentration of the conductive salt in the electrolyte system is 1.25 molar to 3.0 molar.
    Type: Application
    Filed: October 4, 2010
    Publication date: April 5, 2012
    Inventors: Kishor Purushottam Gadkaree, Shrisudersan Jayaraman
  • SORBENT BODIES COMPRISING ACTIVATED CARBON, PROCESSES FOR MAKING THEM, AND THEIR USE
    Publication number: 20120051991
    Abstract: Sorbent bodies comprising activated carbon, processes for making them, and methods of using them. The sorbent bodies can be used to remove toxic elements from a fluid, such as from a gas stream. For instance, the sorbent bodies may be used to remove elemental mercury or mercury in an oxidized state from a coal combustion flue gas.
    Type: Application
    Filed: November 9, 2011
    Publication date: March 1, 2012
    Applicant: CORNING INCORPORATED
    Inventors: Kishor Purushottam Gadkaree, Benedict Yorkeorke Johnson, Pei Qiong Kuang, Anbo Liu, Youchun Shi
  • Flow-through sorbent comprising a metal sulfide
    Patent number: 8124213
    Abstract: A flow-through sorbent comprising at least 30 wt % of a metal sulfide, and a binder. The sorbent may be used, for example, for the removal of a contaminant, such as mercury, from a fluid stream.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: February 28, 2012
    Assignee: Corning Incorporated
    Inventors: Kishor Purushottam Gadkaree, Anbo Liu, Joseph Frank Mach
  • Dual-Layer Method of Fabricating Ultracapacitor Current Collectors
    Publication number: 20120043120
    Abstract: A method of making a multi-layer current collector comprises forming a first layer from a first formulation over each major surface of a current collector substrate, and forming a second layer from a second formulation over each of the first layers, wherein one of the first formulation and second formulation is a graphite formulation and the other of the first formulation and second formulation is a carbon black formulation.
    Type: Application
    Filed: August 23, 2010
    Publication date: February 23, 2012
    Inventors: Kishor Purushottam Gadkaree, Felipe Miguel Joos, James Robert Lim, Kamjula Pattabhirami Reddy
  • HALOGENATED ACTIVATED CARBON MATERIALS FOR HIGH ENERGY DENSITY ULTRACAPACITORS
    Publication number: 20110294661
    Abstract: A method for producing a halogenated activated carbon material includes heating a natural, non-lignocellulosic carbon precursor in an inert or reducing atmosphere to form a first carbon material, mixing the first carbon material with an inorganic compound to form a mixture, heating the mixture in an inert or reducing atmosphere to incorporate the inorganic compound into the first carbon material, removing the inorganic compound from the first carbon material to produce an activated carbon material, and treating the activated carbon material with a halogen source to form a halogenated activated carbon material. The halogenated activated carbon material is suitable to form improved carbon-based electrodes for use in high energy density devices.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 1, 2011
    Inventors: Kishor Purushottam Gadkaree, Shrisudersan Jayaraman
  • HALOGENATED ACTIVATED CARBON MATERIALS FOR HIGH ENERGY DENSITY ULTRACAPACITORS
    Publication number: 20110292571
    Abstract: A method for producing a halogenated activated carbon material includes heating a natural, non-lignocellulosic carbon precursor in an inert or reducing atmosphere to form a first carbon material, mixing the first carbon material with an inorganic compound to form a mixture, heating the mixture in an inert or reducing atmosphere to incorporate the inorganic compound into the first carbon material, removing the inorganic compound from the first carbon material to produce an activated carbon material, and treating the activated carbon material with a halogen source to form a halogenated activated carbon material. The halogenated activated carbon material is suitable to form improved carbon-based electrodes for use in high energy density devices.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 1, 2011
    Inventors: Kishor Purushottam Gadkaree, Shrisudersan Jayaraman
  • MULTI-LAYERED ELECTRODE FOR ULTRACAPACITORS
    Publication number: 20110292569
    Abstract: A multi-layer electrode includes a current collector having opposing first and second major surfaces, a fused carbon layer formed over one or both of the major surfaces, a conductive adhesion layer formed over each fused carbon layer, and an activated carbon layer formed over each conductive adhesive layer. The multi-layer electrode can be incorporated into a high energy density, high power density device such as an electric double layer capacitor.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 1, 2011
    Inventors: Kishor Purushottam Gadkaree, James Robert Lim, Kamjula Pattabhirami Reddy
  • Electrochemical Capacitor Having Lithium Containing Electrolyte
    Publication number: 20110261501
    Abstract: A device having a first electrode, a second electrode, a separator positioned between the first electrode and the second electrode, and an electrolyte incorporated throughout the first electrode, the second electrode, and the separator. The electrolyte includes one or more lithium salts and one or more solvents. The first electrode and second electrodes comprise a majority of activated carbon having a microporous pore size distribution.
    Type: Application
    Filed: April 21, 2010
    Publication date: October 27, 2011
    Inventors: Kishor Purushottam Gadkaree, Shrisudersan Jayaraman, James Robert Lim
  • Coated Flow-Through Substrates and Methods for Making and Using Them
    Publication number: 20110247312
    Abstract: A coated flow-through substrate comprising a flow-through substrate and a sulfur-containing compound disposed as a coating on the flow-through substrate. The coated flow-through substrate may be used, for example, in the removal of a heavy metal from a fluid such as a gas stream.
    Type: Application
    Filed: December 18, 2009
    Publication date: October 13, 2011
    Inventors: Dana Craig Bookbinder, Kishor Purushottam Gadkaree, Paul John Shustack, Shaole Wu
  • HIGH PERFORMANCE ELECTRODES FOR EDLCS
    Publication number: 20110228447
    Abstract: An electric double layer capacitor composite electrode includes a current collector having opposing major surfaces, first and second conductive layers formed over respective ones of the major surfaces, and first and second carbon-based layers formed over the first and second conductive layers.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 22, 2011
    Inventors: Kishor Purushottam Gadkaree, Shrisudersan Jayaraman, James Robert Lim, Jia Liu
  • Electrodes for electric double layer devices
    Patent number: 8002921
    Abstract: The disclosure provides a method comprising contacting a fibrous polymeric material and a carbon material to form a mixture, contacting the mixture with a liquid to form a slurry, and then forming a layer comprising the slurry. Also disclosed are layers formed from the recited methods, electrodes comprising the layers, and electrical devices comprising the layers and/or electrodes.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: August 23, 2011
    Assignee: Corning Incorporated
    Inventors: Kishor Purushottam Gadkaree, Joseph Frank Mach
  • MICROPOROUS ACTIVATED CARBON FOR EDLCS
    Publication number: 20110182000
    Abstract: An electric double layer capacitor electrode includes microporous carbon, wherein the microporous carbon includes pores having a size of 1 nm or less, which provide a combined pore volume of at least 0.3 cm3/g, pores having a size of from 1 nm to 2 nm, which provide a combined pore volume of at least 0.05 cm3/g, and less than 0.15 cm3/g combined pore volume of any pores having a size greater than 2 nm.
    Type: Application
    Filed: December 16, 2010
    Publication date: July 28, 2011
    Inventors: Kishor Purushottam Gadkaree, Jia Liu