Patents by Inventor Eigen Suzuki

Eigen Suzuki 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).

  • Patent number: 4776899
    Abstract: An improved multifilament superconductor is fabricated by the method in which a tin rod or tin based alloy rod is clad with a copper based alloy tube, the thus obtained copper-clad rod is further clad with a niobium based alloy tube, and a copper material is applied as a stabilizer on an outer peripheral surface of the niobium based alloy tube to form a composite. This composite is then reduced and thermally treated at a temperature ranging from 640.degree. to 770.degree. C. to thereby form an Nb.sub.3 Sn superconductor composite with a filament tube therein. At least one of the copper based alloy tube and the niobium based alloy tube contains 0.1-5.0 at. % titanium, and in addition, the tin based alloy rod may contain 0.1-3.5 at. % titanium. The tin is contained in the copper-clad rod at weight % of about 25-85, preferably 30-80 weight %.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: October 11, 1988
    Assignees: Kabushiki Kaisha Toshiba, Showa Electric Wire and Cable Company Limited
    Inventors: Satoru Murase, Hachio Shiraki, Eigen Suzuki, Masamitsu Ichihara, Yoshimasa Kamisada, Nobuo Aoki, Tomoyuki Kumano
  • Patent number: 4043028
    Abstract: A method of making stabilized superconductors of a composition such as Nb.sub.3 Sn is disclosed. The method includes forming a stock product comprising a tin base alloy as a core with a copper jacket and having a niobium tube clad thereon. The stock product is then embedded in a good thermally and electrically conducting matrix which is then coreduced until the desired size is obtained. This cold worked product is then submitted to a heat treatment to form superconductors of Nb.sub.3 Sn.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: August 23, 1977
    Assignee: Showa Electric Wire and Cable Company
    Inventors: Yoshiyasu Koike, Hachio Shiraki, Eigen Suzuki, Makoto Yoshida