Patents by Inventor Masahide Wakuda

Masahide Wakuda 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).

  • Superconducting reversible variable inductor
    Patent number: 4987390
    Abstract: A superconducting reversible variable inductor of this invention comprises: a core made of a Type II superconductor having a reversible magnetic permeability variation range in which the magnetic permeability varies reversibly with respect to a variation of a magnetic field of a predetermined strength or less and falling in the range of from a lower critical magnetic field or more to an upper critical magnetic field or less; and one or more coils wound around the core. The superconductor reversible variable inductor has good linear controllability and high speed response of the inductance.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: January 22, 1991
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Kaneo Mouri, Masahide Wakuda, Noriaki Baba