Patents by Inventor Genya Yamato

Genya Yamato 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 modifying grain boundary of Nd—Fe—B base magnet, and body with modified grain boundary treated by the method
    Patent number: 10589355
    Abstract: An improvement of coercive force of Nd—Fe—B base sintered magnet can be realized while suppressing a decrease in remanent magnetic flux density to the minimum using a method for modifying grain boundary which comprises heat-treating an Nd—Fe—B base magnet with a specific alloy disposed on its surface, the alloy having the following Formula 1: RxAyBz??(1) wherein R represents at least one rare earth element including Sc and Y, A represents Ca or Li, B represents an unavoidable impurity, and 2?x?99, 1?y<x, and 0?z<y.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: March 17, 2020
    Assignees: Nissan Motor Co., Ltd., Osaka University
    Inventors: Masaru Uenohara, Takashi Furuya, Koichi Nakazawa, Shinichirou Fujikawa, Seiji Kawai, Kenichi Machida, Genya Yamato
  • Method for Modifying Grain Boundary of Nd-Fe-B Base Magnet, and Body with Modified Grain Boundary Treated by the Method
    Publication number: 20180326489
    Abstract: An improvement of coercive force of Nd—Fe—B base sintered magnet can be realized while suppressing a decrease in remanent magnetic flux density to the minimum using a method for modifying grain boundary which comprises heat-treating an Nd—Fe—B base magnet with a specific alloy disposed on its surface, the alloy having the following Formula 1: RxAyBz??(1) wherein R represents at least one rare earth element including Sc and Y, A represents Ca or Li, B represents an unavoidable impurity, and 2?x?99, 1?y<x, and 0?z<y.
    Type: Application
    Filed: October 12, 2016
    Publication date: November 15, 2018
    Applicants: Nissan Motor Co., Ltd., Osaka University
    Inventors: Masaru Uenohara, Takashi Furuya, Koichi Nakazawa, Shinichirou Fujikawa, Seiji Kawai, Kenichi Machida, Genya Yamato