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:
Oct. 18, 2022

Filed:

Mar. 24, 2020
Applicant:

Taiyo Yuden Co., Ltd., Tokyo, JP;

Inventors:

Makoto Shimizu, Takasaki, JP;

Tomoo Kashiwa, Takasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 41/06 (2016.01); H01F 27/32 (2006.01); H01F 27/24 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2804 (2013.01); H01F 27/24 (2013.01); H01F 27/2823 (2013.01); H01F 27/32 (2013.01); H01F 41/06 (2013.01);
Abstract

A coil component includes: a magnetic body part having a first compact containing a first magnetic material and a first resin, and a second compact placed on the outside of the first compact and containing a second magnetic material and a second resin; a coil formed by a conductive wire which comprises a metal conductor covered with an insulating film, and embedded in the magnetic body part; and lead parts of the coil placed on the outside of the first compact; wherein the filling rate of the first magnetic material constituting the first compact is higher than the filling rate of the second magnetic material constituting the second compact. The filling rate of magnetic grains can be improved while also ensuring the insulating property of the coil, etc.


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