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:
Dec. 22, 2020
Filed:
Jun. 13, 2018
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Yu Yonezawa, Tokyo, JP;
Yoshihiro Shinkai, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/28 (2006.01); H01F 3/08 (2006.01); B22F 1/00 (2006.01); C22C 38/10 (2006.01);
U.S. Cl.
CPC ...
H01F 1/28 (2013.01); B22F 1/0018 (2013.01); B22F 1/0025 (2013.01); B22F 1/0044 (2013.01); B22F 1/0048 (2013.01); B22F 1/0059 (2013.01); B22F 1/0062 (2013.01); C22C 38/10 (2013.01); H01F 3/08 (2013.01); B22F 2301/35 (2013.01); B22F 2304/054 (2013.01); B22F 2999/00 (2013.01); C22C 2202/02 (2013.01);
Abstract
A composite magnetic material includes a needle-like powder and a spherical powder. The needle-like powder includes a soft magnetic material and has an average minor-axis length of 100 nm or less and an average aspect ratio of 3.0 or more and 10.0 or less. The spherical powder includes a soft magnetic material and has an average major-axis length of 100 nm or less and an average aspect ratio of less than 3.0.