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:
Oct. 19, 2021
Filed:
Mar. 08, 2019
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Takuma Nakano, Tokyo, JP;
Kazuhiro Yoshidome, Tokyo, JP;
Hiroyuki Matsumoto, Tokyo, JP;
Satoko Mori, Tokyo, JP;
Seigo Tokoro, Tokyo, JP;
Kenji Horino, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 3/00 (2006.01); H01F 1/153 (2006.01); H01F 1/147 (2006.01); H01F 3/08 (2006.01); H01F 1/24 (2006.01); H01F 1/33 (2006.01); H01F 1/26 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 1/15308 (2013.01); H01F 1/14766 (2013.01); H01F 1/24 (2013.01); H01F 1/26 (2013.01); H01F 1/33 (2013.01); H01F 3/08 (2013.01); H01F 1/15333 (2013.01); H01F 41/0246 (2013.01);
Abstract
Soft magnetic metal powder which includes a plurality of soft magnetic metal particles configured by a Fe-based nanocrystal alloy including Cu is provided, wherein the soft magnetic metal particles have core portions and first shell portions surrounding circumferences of the core portions; when an average crystallite size of Cu crystallites existing in the core portions is set as A, and the largest crystallite size of Cu crystallites existing in the first shell portions is set as B, B/A is 3.0 or more and 1000 or less.