Patents by Inventor Osamu Michikami

Osamu Michikami 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).

  • Method of fabrication of Josephson tunnel junction
    Patent number: 4412902
    Abstract: There is disclosed a method of fabrication of a Josephson tunnel junction device. A surface of a base electrode of Nb or Nb compound is subjected to sputter cleaning and then to plasma oxidation in an atmosphere of a diluent gas and oxygen to form thereon an oxide layer serving as a tunnel barrier. A counter electrode is then formed on the oxide layer to provide the Josephson tunnel junction.
    Type: Grant
    Filed: June 18, 1982
    Date of Patent: November 1, 1983
    Assignee: Nippon Telegraph & Telephone Public Corporation
    Inventors: Osamu Michikami, Yujiro Katoh, Keiichi Tanabe, Hisataka Takenaka, Shizuka Yoshii