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 7733611 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 08, 2010

Filed:

Feb. 27, 2007
Applicants:

Isamu Sato, Tokyo, JP;

Rachid Sbiaa, Tokyo, JP;

Inventors:

Isamu Sato, Tokyo, JP;

Rachid Sbiaa, Tokyo, JP;

Assignee:

TDK Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01);
U.S. Cl.
CPC ...
Abstract

A magnetoresistance effect element comprises a free layer composed of a ferromagnetic layer, a pinned layer composed of a ferromagnetic layer, and a layer disposed between the free layer and the pinned layer and including at least one nano-contact portion disposed at least one portion between the free layer and the pinned layer. The nano-contact portion has a dimension, including at least one of a length in the layer lamination direction and a length in a direction normal to the layer lamination direction, being not more than Fermi length. The nano-contact portion is provided, in an inside portion thereof, with a magnetic wall composed of either one of Bloch magnetic wall, Nëel magnetic wall or a combination wall thereof.


Find Patent Forward Citations

Sato, Isamu. (2010). Magnetoresistance effect element comprising nano-contact portion not more than a mean free path and magnetic head utilizing same (U.S. Patent No. 7733611). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7733611

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