Patents by Inventor Michihiro Sako

Michihiro Sako 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 for manufacturing sintered magnet
    Patent number: 11515086
    Abstract: A method for manufacturing a sintered magnet includes molding a green compact formed by compacting a magnet powder by press-molding the magnet powder, the green compact forming an R—Fe—B based sintered magnet having Nd as the principal component and containing a rare earth element R, sintering the green compact by heating to a sintering temperature, so as to mold a sintered magnet, pressure molding the sintered magnet by heating to a temperature not exceeding the sintering temperature, so as to correct dimensions of the sintered magnet, and adjusting the texture of the sintered magnet by aging heat treatment using heated atmosphere produced when correcting the dimensions of the sintered magnet at a temperature not exceeding the temperature during the pressure molding.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: November 29, 2022
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Michihiro Sako, Shinichirou Fujikawa, Akihiko Ikeda, Hiroki Matsunae, Takashi Furuya
  • METHOD FOR MANUFACTURING SINTERED MAGNET
    Publication number: 20150206654
    Abstract: A method for manufacturing a sintered magnet includes molding a green compact formed by compacting a magnet powder by press-molding the magnet powder, the green compact forming an R—Fe—B based sintered magnet having Nd as the principal component and containing a rare earth element R, sintering the green compact by heating to a sintering temperature, so as to mold a sintered magnet, pressure molding the sintered magnet by heating to a temperature not exceeding the sintering temperature, so as to correct dimensions of the sintered magnet, and adjusting the texture of the sintered magnet by aging heat treatment using heated atmosphere produced when correcting the dimensions of the sintered magnet at a temperature not exceeding the temperature during the pressure molding.
    Type: Application
    Filed: June 26, 2013
    Publication date: July 23, 2015
    Inventors: Michihiro Sako, Shinichirou Fujikawa, Akihiko Ikeda, Hiroki Matsunae, Takashi Furuya