Patents by Inventor Eichi Tada

Eichi Tada 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 for magnetic field shielding
    Patent number: 4803452
    Abstract: A magnetic field shield which is characterized in that it includes at least one composite lamination including a thin film of the superconductor and a metal layer laminated with the thin film of the superconductor having a thickness not more than that obtained at the turning point where the magnetic field shielding effect of a single film of the superconductor changes from an abrupt increase to a gradual increase and the film thickness is less than 2 .mu.m.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: February 7, 1989
    Assignees: Yoshiro Saji, Koatsu Gas Co., Ltd.
    Inventors: Yoshiro Saji, Eichi Tada, Hiroaki Toda, Yoshiaki Kawahara