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. 24, 2023
Filed:
Jul. 02, 2021
Applicant:
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Inventor:
Hiroshi Marusawa, Nagaokakyo, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 1/102 (2022.01); H01F 1/26 (2006.01); H01F 1/34 (2006.01); B82Y 25/00 (2011.01); B82Y 40/00 (2011.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
B22F 1/102 (2022.01); H01F 1/26 (2013.01); H01F 1/344 (2013.01); B22F 2301/35 (2013.01); B22F 2304/054 (2013.01); B22F 2304/056 (2013.01); B22F 2304/058 (2013.01); B82Y 25/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01);
Abstract
A method for manufacturing a magnetic powder includes a step of producing a magnetic powder by spray-drying a spray liquid containing first magnetic particles, second magnetic particles, a thermosetting resin, and an organic solvent. A magnetic powder includes first magnetic particles and a thermosetting resin coating film on surfaces of the first magnetic particles. The first magnetic particles are soft magnetic metal particles. The resin coating film contains second magnetic particles. The second magnetic particles have a smaller average particle size than the first magnetic particles.