Patents by Inventor Hideki Murabayashi

Hideki Murabayashi 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).

  • Iron core material
    Patent number: 4502982
    Abstract: Disclosed is an iron core material, comprising a high density compression molded product of a mixture of magnetic powder of iron or iron alloy having a mean particle size of 100.mu. or less and an insulating caking material such as thermosetting resins. The magnetic powder, when its mean particle size is represented by D.mu. and its resistivity by .rho..mu..OMEGA.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: March 5, 1985
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Hiromichi Horie, Kazumi Shimotori, Hideki Murabayashi
  • Sheath heater
    Patent number: 4280046
    Abstract: A sheath heater having a heating wire embedded in a ceramic insulator such that the thermal deformation of the heating wire is substantially prevented, wherein the heating wire is formed of a nichrome-based wire having an Al-rich surface layer so as to permit forming an oxidation-protective alumina layer on the surface of the nichrome-based wire.
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: July 21, 1981
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Kazumi Shimotori, Isao Izumi, Hideki Murabayashi
  • Bismuth-tin-indium alloy
    Patent number: 4214903
    Abstract: Disclosed is a bismuth-tin-indium alloy consisting essentially of 53 to 76 weight % of bismuth, 22 to 35 weight % of tin and 2 to 12 weight % of indium. This alloy has excellent sealing property and oxidation resistance, and is suitable particularly to the use as a seal material for a rotating plug of a nuclear reactor.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: July 29, 1980
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Hideki Murabayashi, Katsuhiko Kawakita, Kisaku Nakamura, Sadao Kobatake
  • Bismuth-tin-indium-lead alloy
    Patent number: 4083718
    Abstract: Disclosed is a bismuth-tin-indium-lead alloy consisting essentially of 28 to 72 weight % of bismuth, 25 to 52 weight % of tin, 2 to 12 weight % of indium and 1 to 8 weight % of lead. This alloy has excellent sealing property and oxidation resistance, and is suitable particularly to the use as a seal material for a rotating plug of a nuclear reactor.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: April 11, 1978
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Hideki Murabayashi, Katsuhiko Kawakita, Kisaku Nakamura, Sadao Kobatake