Patents by Inventor Adrian Michael Marsh

Adrian Michael Marsh 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).

  • Superconductor-normal conductor junction device
    Patent number: 6088604
    Abstract: A superconductor-normal conductor junction device comprises first and second regions (1, 3) of normal material forming first and second junctions with a superconducting material (2), the Fermi level of the first region of normal material being so arranged relative to a given energy level in the superconducting material that charge carriers in the first normal material undergo Andreev reflection at the first junction, resulting in pairs of the charge carriers entering said given energy level in the superconducting material, and the Fermi level of the second region of normal material being so arranged relative to said given level in the superconducting material that said charge carriers conduct from the superconducting material through the second region.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: July 11, 2000
    Assignee: Hitachi, Ltd.
    Inventors: David Arfon Williams, Adrian Michael Marsh, Haroon Ahmed, Bruce William Alphenaar