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 7443635 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 28, 2008

Filed:

Oct. 04, 2005
Applicants:

Kenichi Tanaka, Niigata-ken, JP;

Eiji Umetsu, Niigata-ken, JP;

Masahiro Oshima, Niigata-ken, JP;

Naoya Hasegawa, Niigata-ken, JP;

Inventors:

Kenichi Tanaka, Niigata-ken, JP;

Eiji Umetsu, Niigata-ken, JP;

Masahiro Oshima, Niigata-ken, JP;

Naoya Hasegawa, Niigata-ken, JP;

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

A multilayer film is placed on a subatrate. The multilayer film includes an antiferromagnetic layer, a pinned magnetic layer, a non-magnetic material layer, and a free magnetic layer. The multilayer film has recessed sections arranged in both side regions thereof, the recessed sections being formed by partly removing the multilayer film in a vacuum. The bottoms of the recessed sections are located between the upper face and lower face of the antiferromagnetic layer. Amorphous barrier layers with a thickness of Å are placed on the bottoms of the recessed sections, the amorphous barrier layers being formed in the same vacuum as that for forming the recessed sections sequentially to the step of forming the recessed sections.


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Tanaka, Kenichi. (2008). Magnetic detector including antiferromagnetic layer, amorphous barrier layer, base layer, and hard layer arranged in that order and method for manufacturing magnetic detector (U.S. Patent No. 7443635). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7443635

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