Patents by Inventor Robert Shekhter

Robert Shekhter 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).

  • Superconducting transistor arrangement and a method relating thereto
    Patent number: 6344659
    Abstract: The present invention relates on an interferometer arrangement comprising a source electrode and a drain electrode, a base electrode to which the source electrode and the drain electrode are connected through tunnel barriers, the base electrode thus forming a double barrier quantum well, and first and second superconducting gate electrodes to control the source-drain current. The base electrode comprises a ferromagnetic material enabling resonant tunneling of source-drain electrons when there are bound states within the quantum well structure matching the energy of said source-drain electrons. The invention also relates to a logical element comprising such an interferometer arrangement and to a method of controlling the conductance of an interferometer.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: February 5, 2002
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zdravko Ivanov, Robert Shekhter, Anatoli Kadiqrobov, Tord Claeson, Mats Jonson, Erland Wikborg