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:
Jun. 07, 2016

Filed:

Feb. 04, 2015
Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Katsuyuki Nakada, Tokyo, JP;

Takahiro Suwa, Tokyo, JP;

Kuniyasu Ito, Tokyo, JP;

Takumi Aoki, Tokyo, JP;

Tetsuya Shibata, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/127 (2006.01); H01F 10/32 (2006.01); H01F 3/10 (2006.01); H01F 7/20 (2006.01); H01L 43/08 (2006.01); G11C 11/16 (2006.01);
U.S. Cl.
CPC ...
H01F 10/3268 (2013.01); G11B 5/127 (2013.01); G11C 11/161 (2013.01); H01F 3/10 (2013.01); H01F 7/20 (2013.01); H01L 43/08 (2013.01);
Abstract

A magnetic element including a magnetoresistive effect film (MEF). Magnetic element includes an MEF and nonmagnetic spacer layer, first and second ferromagnetic layers, wherein layers being disposed with nonmagnetic spacer layer interposed therebetween, pair of electrodes disposed with MEF interposed therebetween in stacking direction of MEF at least two first soft magnetic layers, coil, and second soft magnetic layer magnetically connected to coil, wherein second soft magnetic layer has ring-like shape, spacing distance between second soft magnetic layer and MEF is larger than first soft magnetic layer and MEF, film thickness of second soft magnetic layer is larger than first soft magnetic layer, part of the two first soft magnetic layers overlaps a part of second soft magnetic layer in stacking direction of MEF, first and second soft magnetic layers are magnetically coupled to each other, and MEF is disposed between respective fore ends of two first soft magnetic layers.


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