Patents by Inventor Masayoshi Wake

Masayoshi Wake 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 producing superconducting wire
    Patent number: 7210216
    Abstract: A method of producing Nb3Sn superconducting wire, including the steps of: preparing a plurality of Sn modules obtained by burying Sn-based metal cores in a Cu-based metal matrix and a plurality of Nb modules obtained by burying Nb-based metal filaments in a Cu-based metal matrix; bundling the Nb modules and the Sn modules such that the Nb modules surround the Sn modules and obtaining an assembly; inserting the assembly in a tubular member of Cu-based metal which internally comprises tube-like shaped Ta-based metal or Nb-based metal which serves as a diffusion barrier and obtaining a composite; drawing the composite; and heat-treating the composite.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: May 1, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kunihiko Egawa, Yoshio Kubo, Takayuki Nagai, Takanori Sone, Kiyoshi Hiramoto, Masayoshi Wake
  • Method of producing superconducting wire
    Publication number: 20050281700
    Abstract: A method of producing Nb3Sn superconducting wire, including the steps of: preparing a plurality of Sn modules obtained by burying Sn-based metal cores in a Cu-based metal matrix and a plurality of Nb modules obtained by burying Nb-based metal filaments in a Cu-based metal matrix; bundling the Nb modules and the Sn modules such that the Nb modules surround the Sn modules and obtaining an assembly; inserting the assembly in a tubular member of Cu-based metal which internally comprises tube-like shaped Ta-based metal or Nb-based metal which serves as a diffusion barrier and obtaining a composite; drawing the composite; and heat-treating the composite.
    Type: Application
    Filed: February 15, 2005
    Publication date: December 22, 2005
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Kunihiko Egawa, Yoshio Kubo, Takayuki Nagai, Takanori Sone, Kiyoshi Hiramoto, Masayoshi Wake
  • Superconductor
    Patent number: 4673774
    Abstract: A superconductor comprises two superconducting wires butt-jointed, a superconducting doubling wire electrically and mechanically connecting the superconducting wires, and a stabilizer attached to the superconductors and the doubling wire to extend therealong, the superconductors, the doubling wire and the stabilizer together forming a superconductor of a constant cross-sectional area. A manufacturing process is also disclosed.
    Type: Grant
    Filed: November 5, 1985
    Date of Patent: June 16, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masayoshi Wake, Osamu Taguchi, Mitsuyuki Imaizumi