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. 05, 2026
Filed:
Feb. 25, 2022
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/14 (2006.01); H01F 1/147 (2006.01); H01F 1/20 (2006.01); H01F 3/08 (2006.01);
U.S. Cl.
CPC ...
H01F 1/147 (2013.01); H01F 1/20 (2013.01); H01F 3/08 (2013.01);
Abstract
A soft magnetic powder includes Fe and Co. The total content of Fe and Co with respect to the soft magnetic powder overall is 90 mass % or greater. The Fe content with respect to the total content of Fe and Co is 30-95 mass %. The average particle diameter of the soft magnetic powder is 0.10-5.0 μm. The amount of oxygen on the surface of the soft magnetic powder is 0.010 g/mor less. The true density of the soft magnetic powder with respect to the theoretical density of the soft magnetic powder is 90-99%.