The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2017
Filed:
Nov. 18, 2010
Applicants:
Tetsuya Shoji, Susono, JP;
Noritsugu Sakuma, Susono, JP;
Hidefumi Kishimoto, Susono, JP;
Inventors:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 1/11 (2006.01); H01F 1/057 (2006.01); H01F 1/06 (2006.01); H01F 1/08 (2006.01); H01F 41/02 (2006.01); H01F 1/058 (2006.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
H01F 1/11 (2013.01); H01F 1/0572 (2013.01); H01F 1/0577 (2013.01); H01F 1/061 (2013.01); H01F 1/086 (2013.01); H01F 41/0266 (2013.01); B82Y 40/00 (2013.01); H01F 1/058 (2013.01); Y10S 977/838 (2013.01); Y10S 977/90 (2013.01);
Abstract
A method for producing a sintered rare-earth magnet characterized by sintering a raw material that includes a ribbon-shaped polycrystalline phase with an average grain size of 10 to 200 nm fabricated by rapid solidification of an alloy melt having a rare-earth magnet composition, and a low-melting point phase formed on the surface of the polycrystalline phase and having a melting point lower than the polycrystalline phase.