Patents by Inventor Jagadishwar Sirigiri

Jagadishwar Sirigiri 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).

  • Vacuum electron device with a photonic bandgap structure and method of use thereof
    Patent number: 6801107
    Abstract: A vacuum electron device with a photonic bandgap structure that provides the ability to tune the behavior of the device to a particular mode of a plurality of modes of propagation. The photonic bandgap structure comprises a plurality of members, at least one of which is movable, and at least one of which is temperature controlled. The photonic bandgap structure makes possible the selection of one mode of propagation without the necessity to build structures having dimensions comparable to the wavelength of the propagation mode.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: October 5, 2004
    Assignee: Massachusetts Institute of Technology
    Inventors: Chiping Chen, Michael Shapiro, Jagadishwar Sirigiri, Richard J. Temkin
  • Vacuum electron device with a photonic bandgap structure and method of use thereof
    Publication number: 20020190655
    Abstract: A vacuum electron device with a photonic bandgap structure that provides the ability to tune the behavior of the device to a particular mode of a plurality of modes of propagation. The photonic bandgap structure comprises a plurality of members, at least one of which is movable, and at least one of which is temperature controlled. The photonic bandgap structure makes possible the selection of one mode of propagation without the necessity to build structures having dimensions comparable to the wavelength of the propagation mode.
    Type: Application
    Filed: January 4, 2002
    Publication date: December 19, 2002
    Inventors: Chiping Chen, Michael Shapiro, Jagadishwar Sirigiri, Richard J. Temkin