Patents by Inventor Hazime Yamada

Hazime Yamada 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).

  • Logic circuit with asymmetrical quantum interferometric circuits
    Patent number: 4330841
    Abstract: A logic circuit having at least one asymmetrical quantum interferometric circuit, wherein the logic output states correspond to the voltage state of the asymmetrical quantum interferometric circuit, the asymmetrical quantum interferometric device comprises: a parallel circuit including a first Josephson junction having a threshold current I.sub.j1, a first inductance element having an inductance L.sub.1 and connected in series with the first Josephson junction, a second Josephson junction having a threshold current I.sub.j2, and a second inductance element having an inductance L.sub.
    Type: Grant
    Filed: April 16, 1980
    Date of Patent: May 18, 1982
    Assignee: Nippon Telegraph & Telephone Public Corp.
    Inventors: Hazime Yamada, Akira Ishida