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:
Jan. 30, 2018
Filed:
Oct. 25, 2013
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Shota Nishio, Osaka, JP;
Takeshi Takahashi, Kyoto, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 3/08 (2006.01); H01F 1/08 (2006.01); B22F 3/26 (2006.01); H01F 1/26 (2006.01); H01F 41/02 (2006.01); B22F 3/12 (2006.01); H01F 41/00 (2006.01); C22C 33/02 (2006.01); B22F 3/24 (2006.01); B22F 1/00 (2006.01); B22F 3/02 (2006.01);
U.S. Cl.
CPC ...
H01F 3/08 (2013.01); B22F 3/12 (2013.01); B22F 3/26 (2013.01); H01F 1/08 (2013.01); H01F 1/26 (2013.01); H01F 41/005 (2013.01); H01F 41/0246 (2013.01); H01F 41/0266 (2013.01); B22F 1/0011 (2013.01); B22F 2003/023 (2013.01); B22F 2003/248 (2013.01); B22F 2998/10 (2013.01); C22C 33/02 (2013.01); C22C 2202/02 (2013.01);
Abstract
A composite magnetic body includes metal magnetic powder formed of metal magnetic particles and an insulator impregnated into at least a part of voids among the metal magnetic particles. On a cumulative curve of widths of the voids among the metal magnetic particles, a void width at which a cumulative distribution is 50% is equal to or smaller than 3 μm, and a void width at which the cumulative distribution is 95% is equal to or greater than 4 μm.