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:
Aug. 02, 2022

Filed:

Jul. 15, 2019
Applicant:

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

Inventors:

Naoya Terauchi, Tokyo, JP;

Takayuki Arai, Tokyo, JP;

Natsuko Sato, Tokyo, JP;

Atsuko Kasahara, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 38/14 (2006.01); H01F 27/28 (2006.01); H01F 41/04 (2006.01); H05K 1/18 (2006.01);
U.S. Cl.
CPC ...
H01F 38/14 (2013.01); H01F 27/2804 (2013.01); H01F 41/041 (2013.01); H05K 1/181 (2013.01); H01F 2027/2809 (2013.01); H05K 2201/1003 (2013.01);
Abstract

A magnetic coupling coil element in one embodiment includes a magnetic base body that includes an intermediate magnetic layer, a first magnetic layer disposed over the intermediate magnetic layer, and a second magnetic layer disposed under the intermediate magnetic layer; a first coil conductor provided in the first magnetic layer; and a second coil conductor provided in the second magnetic layer. The intermediate magnetic layer has a saturation magnetic flux density lower than saturation magnetic flux densities of the first magnetic layer and the second magnetic layer in a first region that overlaps with the first coil conductor and the second coil conductor in plan view.


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