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:
Jun. 27, 2017
Filed:
Mar. 15, 2013
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Takeshi Takahashi, Kyoto, JP;
Shota Nishio, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 33/02 (2006.01); H01F 1/33 (2006.01); B22F 3/12 (2006.01); C22C 19/03 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); H01F 41/02 (2006.01); H01F 1/147 (2006.01);
U.S. Cl.
CPC ...
H01F 1/33 (2013.01); B22F 3/12 (2013.01); C22C 19/03 (2013.01); C22C 33/0228 (2013.01); C22C 38/00 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); H01F 1/14741 (2013.01); H01F 1/14766 (2013.01); H01F 1/14791 (2013.01); H01F 41/02 (2013.01); H01F 41/0246 (2013.01);
Abstract
A composite magnetic material contains metal magnetic powder composed of metal magnetic particles, and mica interposed between the metal magnetic particles as an inorganic insulator. The mica has an Fe content of 15 wt % or less per 100 wt % of the mica in terms of FeO. To manufacture the composite magnetic material, first, mixed powder is prepared by mixing the metal magnetic powder and the mica so as to be dispersed into each other. Next, a compact is formed by pressure-molding the mixed powder. Finally, the compact is heat-treated.