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.

Date of Patent:
May. 23, 2023

Filed:

Dec. 06, 2017
Applicant:

Murata Manufacturing Co., Ltd., Kyoto-fu, JP;

Inventor:

Hiroyuki Takatsuji, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/32 (2006.01); H01F 27/29 (2006.01); H01F 27/24 (2006.01); H01F 27/28 (2006.01); H01F 17/04 (2006.01); H01F 27/36 (2006.01); H02M 3/156 (2006.01); H02M 1/14 (2006.01); H01F 27/22 (2006.01); H02M 1/44 (2007.01);
U.S. Cl.
CPC ...
H01F 27/363 (2020.08); H01F 17/04 (2013.01); H01F 27/22 (2013.01); H01F 27/24 (2013.01); H01F 27/2823 (2013.01); H01F 27/29 (2013.01); H01F 27/292 (2013.01); H02M 1/143 (2013.01); H02M 3/156 (2013.01); H02M 1/44 (2013.01);
Abstract

An inductor includes a core made from a metallic magnetic material, a wire wound around the core, a pair of outer electrodes coupled to respective end portions of the wire, a shielding member arranged so as to cover a top face and three or more side faces of the core, and an insulating member arranged between the core and the shielding member and having thermal conductivity. The thickness of the shielding member is set by applying the electric resistivity and permeability of the shielding member and the frequency of noise desired to be shielded to an expression for determining the depth of a skin of skin effect. The thickness of the insulating member is set according to the breakdown voltage of the insulating member and the voltage with which insulation is desired to be ensured under a use environment of the inductor.


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