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:
Jul. 25, 2017
Filed:
Mar. 11, 2015
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Inventors:
Yosuke Horiuchi, Tokyo, JP;
Shinya Sakurada, Tokyo, JP;
Masaya Hagiwara, Kanagawa, JP;
Tsuyoshi Kobayashi, Kanagawa, JP;
Tadahiko Kobayashi, Kanagawa, JP;
Assignee:
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/053 (2006.01); C22C 19/07 (2006.01); C22C 30/02 (2006.01); H02K 1/02 (2006.01); H01F 1/055 (2006.01); H01F 1/08 (2006.01); H01F 1/059 (2006.01);
U.S. Cl.
CPC ...
H01F 1/053 (2013.01); C22C 19/07 (2013.01); C22C 30/02 (2013.01); H01F 1/0557 (2013.01); H01F 1/086 (2013.01); H02K 1/02 (2013.01); H01F 1/0596 (2013.01);
Abstract
The magnet has a composition expressed by RFeMCuCo. The magnet has a metallic structure including a main phase having a ThZncrystal phase. The main phase has crystal grains. 5% or less of the crystal grains having a grain diameter equal to or smaller than 10 μm, 40% or less of the crystal grains having crystal orientation perpendicular to (001) plane of the ThZncrystal phase in a direction deviated 30 degrees or more relative to an axis of easy magnetization.