Patents by Inventor Soumyadeb Ghosh

Soumyadeb Ghosh 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: 20060108567
    Abstract: A resin composition comprises a poly(arylene ether); a polyamide; an impact modifier; an electrically conductive filler; and an additive having greater than or equal to four conjugated double bonds and a melting temperature less than or equal to 400° C.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 25, 2006
    Inventors: Sanjay Charati, Yogendrasinh Chauhan, Adil Dhalla, Soumyadeb Ghosh, Parnasree Maiti, Nitin Mutha, Nisha Preschilla
  • Patent number: 7026432
    Abstract: A method for manufacturing a conductive composition comprises blending a polymer precursor with a single wall carbon nanotube composition; and polymerizing the polymer precursor to form an organic polymer. The method may be advantageously used for manufacturing automotive components, computer components, and other components where electrical conductivity properties are desirable.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: April 11, 2006
    Assignee: General Electric Company
    Inventors: Sanjay Gurbasappa Charati, Dibakar Dhara, Mark Elkovitch, Soumyadeb Ghosh, Nitin Mutha, Srinivasan Rajagopalan, Abbas Alli Shaikh
  • Publication number: 20060069199
    Abstract: A method for manufacturing a conductive composition comprises blending a polymer precursor with a single wall carbon nanotube composition; and polymerizing the polymer precursor to form an organic polymer. The method may be advantageously used for manufacturing automotive components, computer components, and other components where electrical conductivity properties are desirable.
    Type: Application
    Filed: November 11, 2005
    Publication date: March 30, 2006
    Inventors: Sanjay Charati, Dibakar Dhara, Soumyadeb Ghosh, Nitin Mutha, Srinivasan Rajagopalan, Abbas Shaikh, Mark Elkovitch
  • Publication number: 20050067406
    Abstract: An apparatus with a self heating feature includes a conductive component of the apparatus having conductive composite. The conductive component is adapted to couple with a source of electricity, and the conductive component heats up on passage of electricity. According to another aspect, a domestic appliance that requires heating for its operation, includes at least one part comprising a conductive composite, which heats up on passage of electricity and the part is adapted to couple with a power supply. According to another aspect a method for providing heating in an apparatus includes heating at least one conductive component of the apparatus. The heating is done by passing an electric current through the conductive component, and the conductive component comprises a conductive composite.
    Type: Application
    Filed: December 22, 2003
    Publication date: March 31, 2005
    Inventors: Shanmugam Rajarajan, Richard Devos, Jennifer Floyd, Sumanda Bandyopadhyay, Soumyadeb Ghosh, Sanjay Charati, Suresh Nagesh, Balaji Parthasarathy, Anand Joshi
  • Publication number: 20050070657
    Abstract: Disclosed herein is an electrically conductive precursor composition comprising an organic polymer precursor; a single wall nanotube composition, wherein the single wall nanotube composition contains at least 0.1 wt % of production related impurities; and an optional nanosized conductive filler. A conductive composition comprises an organic polymer; a single wall nanotube composition, wherein the single wall nanotube composition contains at least 0.1 wt % of production related impurities; and a nanosized conductive filler.
    Type: Application
    Filed: September 29, 2003
    Publication date: March 31, 2005
    Inventors: Mark Elkovitch, Soumyadeb Ghosh, Nitin Mutha, Srinivasan Rajagopalan, Sai-Pei Ting
  • Publication number: 20050070658
    Abstract: Disclosed herein is a conductive composition comprising an organic polymer; graphite; and a nanosized conductive filler and/or carbon fibers having a diameter of greater than or equal to about 1000 nanometers. Disclosed herein too is a method for manufacturing a composition comprising blending an organic polymer; graphite; and a nanosized conductive filler, wherein the composition has an electrical volume resistivity less than or equal to about 10e8 ohm-cm.
    Type: Application
    Filed: September 30, 2003
    Publication date: March 31, 2005
    Inventors: Soumyadeb Ghosh, Sumanda Bandyopadhyay
  • Publication number: 20050038225
    Abstract: A method for manufacturing a conductive composition comprises blending a polymer precursor with a single wall carbon nanotube composition; and polymerizing the polymer precursor to form an organic polymer. The method may be advantageously used for manufacturing automotive components, computer components, and other components where electrical conductivity properties are desirable.
    Type: Application
    Filed: March 18, 2004
    Publication date: February 17, 2005
    Inventors: Sanjay Charati, Dibakar Dhara, Mark Elkovitch, Soumyadeb Ghosh, Nitin Mutha, Srinivasan Rajagopalan, Abbas Shaikh
  • Publication number: 20050029498
    Abstract: Disclosed herein is an electrically conductive composition comprising an organic polymer; and a carbon nanotube composition, wherein the carbon nanotube composition comprises carbon nanotubes that can rope and have greater than or equal to about 0.1 wt % production related impurities, based on the total weight of the carbon nanotube composition, and wherein the composition has a bulk volume resistivity less than or equal to about 1012 ohm-cm, and a notched Izod impact strength of greater than or equal to about 5 kilojoules/square meter.
    Type: Application
    Filed: August 6, 2004
    Publication date: February 10, 2005
    Inventors: Mark Elkovitch, Srinivasan Rajagopalan, Soumyadeb Ghosh, Nitin Mutha
  • Publication number: 20040211942
    Abstract: An electrically conductive composition comprises a polymeric resin; and single wall carbon nanotubes, wherein the composition has an electrical volume resistivity less than or equal to about 10e12 ohm-cm, a notched Izod impact strength greater than or equal to about 5 kilojoules/square meter. In another embodiment, a method for manufacturing an electrically conductive composition comprises blending a polymeric resin and single wall carbon nanotubes, wherein the composition has an electrical volume resistivity less than or equal to about 10e8 ohm-cm, a notched Izod impact strength greater than or equal to about 5 kilojoules/square meter.
    Type: Application
    Filed: April 5, 2004
    Publication date: October 28, 2004
    Inventors: Darren Cameron Clark, Mark Elkovitch, Soumyadeb Ghosh, Srinivasan Rajagopalan, Sai-Pei Ting
  • Publication number: 20040016912
    Abstract: A polymeric composite comprises a polymeric resin; an electrically conductive filler; and a polycyclic aromatic compound, in an amount effect to increase the electrical conductivity of the polymeric composition relative to the same composition without the polycyclic aromatic compound. The addition of the polycyclic aromatic compound in addition to a conductive filler imparts improved electrical and mechanical properties to the compositions.
    Type: Application
    Filed: February 11, 2003
    Publication date: January 29, 2004
    Inventors: Sumanda Bandyopadhyay, Darren Clark, Soumyadeb Ghosh
  • Patent number: 6482299
    Abstract: Polymer microgel particles dispersed in an aqueous medium. PEDOT-PSS complex, with excess fixed negative charge and dispersed in aqueous media are crosslinked. Because of the network structure and due to the gel nature of the particles used as its building block, provides the prepared gel material with excellent access of the electrolyte solution to the polymer chains. The electrical connectivity of the polymer chains is further improved by eletropolymerization of another conducting polymer, such as polypyrrole (PPy), polyaniline (PAni), using the polymer gel as the template.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: November 19, 2002
    Assignee: Forskarpatent I Linkoping AB
    Inventors: Olle Inganäs, Soumyadeb Ghosh