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.:

US 7063904 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 20, 2006

Filed:

Apr. 23, 2003
Applicants:

Kazuaki Ikarashi, Niigata-ken, JP;

Naoya Hasegawa, Niigata-ken, JP;

Inventors:

Kazuaki Ikarashi, Niigata-ken, JP;

Naoya Hasegawa, Niigata-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/127 (2006.01);
U.S. Cl.
CPC ...
Abstract

Each of an antiferromagnetic layer and a pinned magnetic layer has a region containing a Cr element, thereby increasing an exchange coupling magnetic field (Hex) produced between the antiferromagnetic layer and the pinned magnetic layer. Therefore, the exchange coupling magnetic field produced between the antiferromagnetic layer and the pinned magnetic layer can be increased, and a coupling magnetic field due to RKKY interaction can also be increased, thereby increasing a one-directional exchange bias magnetic field (Hex*) in the pinned magnetic layer as compared with a conventional exchange coupling film.


Find Patent Forward Citations

Ikarashi, Kazuaki. (2006). Exchange coupling film, magnetic detecting element using the exchange coupling film, and method of making same (U.S. Patent No. 7063904). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7063904

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