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:
Mar. 29, 2022
Filed:
Feb. 25, 2019
Applicant:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Inventors:
Naoyuki Sanada, Kawasaki Kanagawa, JP;
Shinya Sakurada, Tokyo, JP;
Assignee:
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/053 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/12 (2006.01); H01F 1/059 (2006.01); H01F 1/055 (2006.01); C22C 38/14 (2006.01); C22C 38/18 (2006.01); C22C 38/10 (2006.01); C22C 38/04 (2006.01); C22C 38/08 (2006.01); C22C 38/28 (2006.01); H02K 7/00 (2006.01);
U.S. Cl.
CPC ...
H01F 1/053 (2013.01); C22C 38/001 (2013.01); C22C 38/005 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/08 (2013.01); C22C 38/10 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/18 (2013.01); C22C 38/28 (2013.01); H01F 1/059 (2013.01); H01F 1/0551 (2013.01); H01F 1/0557 (2013.01); H01F 1/0596 (2013.01); H02K 7/003 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); C22C 2202/02 (2013.01);
Abstract
The permanent magnet includes: a main phase expressed by a composition formula: RMNand having at least one crystal structure selected from the group consisting of a ThNicrystal structure, a ThZncrystal structure, and a TbCucrystal structure; and a sub phase having a phosphorus compound phase containing a phosphorus compound excluding a phosphoric acid compound.