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:
Sep. 13, 2022
Filed:
Aug. 11, 2020
Applicant:
Tdk Corporation, Tokyo, JP;
Inventor:
Takeshi Takahashi, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 1/02 (2006.01); H01F 1/147 (2006.01); C22C 38/08 (2006.01); C22C 38/02 (2006.01); B22F 9/08 (2006.01); B22F 1/00 (2022.01); B22F 1/16 (2022.01); B22F 1/142 (2022.01); H01F 27/255 (2006.01);
U.S. Cl.
CPC ...
B22F 1/16 (2022.01); B22F 1/142 (2022.01); B22F 9/082 (2013.01); C22C 38/02 (2013.01); C22C 38/08 (2013.01); H01F 1/147 (2013.01); B22F 2301/35 (2013.01); B22F 2302/35 (2013.01); H01F 27/255 (2013.01);
Abstract
A composite particle of the present invention comprises a soft magnetic iron-based particle, a coating layer disposed on a surface of the soft magnetic iron-based particle, and a spherical nanopowder with at least a part thereof disposed inside of the coating layer. The coating layer is a layer of a compound comprising Fe, Si, O, B and N; and the nanopowder is a powder of a compound comprising O, N and at least one element selected from the group consisting of Fe, Si, Zr, Co, Al, Mg, Mn and Ni.