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:
Feb. 06, 2024
Filed:
Sep. 02, 2021
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 1/153 (2006.01); H01F 27/255 (2006.01); H01F 27/28 (2006.01); C22C 38/02 (2006.01); C22C 38/16 (2006.01); C22C 38/12 (2006.01); C22C 38/06 (2006.01); C22C 38/14 (2006.01); C22C 38/28 (2006.01); H01F 3/08 (2006.01); C22C 38/26 (2006.01); C22C 38/20 (2006.01); C22C 38/34 (2006.01); C22C 38/32 (2006.01); C22C 38/00 (2006.01); B22F 1/054 (2022.01); C22C 33/00 (2006.01); C22C 33/02 (2006.01); H01F 17/04 (2006.01); H01F 17/06 (2006.01); B22F 9/08 (2006.01); B22F 1/142 (2022.01);
U.S. Cl.
CPC ...
H01F 1/15308 (2013.01); B22F 1/054 (2022.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/20 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C22C 38/34 (2013.01); H01F 1/15333 (2013.01); H01F 3/08 (2013.01); H01F 27/255 (2013.01); H01F 27/28 (2013.01); B22F 1/142 (2022.01); B22F 9/082 (2013.01); B22F 2999/00 (2013.01); C22C 33/003 (2013.01); C22C 33/02 (2013.01); H01F 17/062 (2013.01); H01F 2017/048 (2013.01);
Abstract
A soft magnetic powder has a composition represented by FeCuSiBMM′XAlTi(at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M′ is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and a, b, c, d, e, f, g, and h satisfy the following formulae: 0.1≤a≤3, 0<b≤30, 0<c≤25, 5≤b+c≤30, 0.1≤d≤30, 0≤e≤10, 0≤f≤10, 0.002≤g≤0.032, and 0≤h≤0.038), wherein a crystalline structure having a particle diameter of 1 to 30 nm is contained in an amount of 40 vol % or more.