Patents by Inventor Tapajyoti Das Gupta

Tapajyoti Das Gupta 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).

  • PIEZORESISTIVE MATERIAL EXHIBITING AN OPTIMAL GAUGE FACTOR
    Publication number: 20180335354
    Abstract: The present invention relates to a multilayer composite material comprising: a base layer a metallic layer consisting of an insulating matrix phase and of a metallic particles phase, said metallic particles being distributed in the insulating matrix, wherein a volume fraction ? being the ratio between the volume of metallic particles and the volume of the metallic layer corresponds to a critical volume fraction ?*+??, with 0<???5%, the critical volume fraction ?* being the volume fraction for which an increase of conductivity of the metallic layer as a function of the volume fraction ? has a maximum value.
    Type: Application
    Filed: June 20, 2018
    Publication date: November 22, 2018
    Applicants: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Thierry Gacoin, Alistair Rowe, Tapajyoti Das Gupta
  • PIEZORESISTIVE MATERIAL EXHIBITING AN OPTIMAL GAUGE FACTOR
    Publication number: 20160178462
    Abstract: The present invention relates to a multilayer composite material comprising: —a base layer—a metallic layer consisting of an insulating matrix phase and of a metallic particles phase, said metallic particles being distributed in the insulating matrix, wherein a volume fraction ? being the ratio between the volume of metallic particles and the volume of the metallic layer corresponds to a critical volume fraction ?*+??, with 0<???5%, the critical volume fraction ?* being the volume fraction for which an increase of conductivity of the metallic layer as a function of the volume fraction ? has a maximum value.
    Type: Application
    Filed: July 24, 2014
    Publication date: June 23, 2016
    Applicants: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Thierry Gacoin, Alistair Rowe, Tapajyoti Das Gupta