Patents by Inventor Teruyuki Yamamoto

Teruyuki Yamamoto 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).

  • Polyamideimide insulated wire
    Patent number: 5219657
    Abstract: An insulated wire comprising a conductor coated and baked thereon with an insulating lacquer, the insulating lacquer comprising (a) 100 parts by weight of a polyamideimide resin having a molecular weight corresponding to a reduced specific viscosity of from 0.1 to 1.0, and (b) 75 to 400 parts by weight of a stabilized polyisocyanate compound derived from diphenylmethane-diisocyanate.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: June 15, 1993
    Assignee: Sumitomo Electric Industries Ltd.
    Inventors: Isao Ueoka, Teruyuki Yamamoto
  • Enamelled wire
    Patent number: 4508779
    Abstract: An enamelled wire comprising a layer of baked insulation formed on the conductor either directly or through another insulation can be produced by applying to at least the outermost layer of the wire a wire enamel composition consisting essentially of a polyester resin at least one molecule of which is terminated with a straight alkyl group having 21 or more carbon atoms, and drying the same.
    Type: Grant
    Filed: June 18, 1982
    Date of Patent: April 2, 1985
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Masayoshi Miyake, Isao Ueoka, Munetaka Kawaguchi, Hirohiko Nakabayashi, Teruyuki Yamamoto
  • Magnet wire
    Patent number: 4378407
    Abstract: A magnet wire comprising a conductor having thereon an outermost insulating wire enamel layer, either directly or over another insulating layer, said wire enamel consisting essentially of a polyamideimide wherein either one or both ends of at least one polyamideimide molecule is a terminal linear alkyl group having at least 21 carbon atoms. The magnet wire has a high resistance to refrigerant as well as to thermal or mechanical damage and has a high lubricity.
    Type: Grant
    Filed: December 31, 1980
    Date of Patent: March 29, 1983
    Assignee: Sumitomo Electric Industries Ltd.
    Inventors: Teruyuki Yamamoto, Masayoshi Miyake, Munetaka Kawaguchi, Hirohiko Nakabayashi