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.:
Date of Patent:
Jul. 27, 2004
Filed:
Aug. 16, 2001
Applicant:
Inventors:
Masayoshi Hiramoto, Nara, JP;
Nozomu Matukawa, Nara, JP;
Akihiro Odagawa, Nara, JP;
Kenji Iijima, Kyoto, JP;
Hiroshi Sakakima, Kyoto, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/31 ; G11B 5/33 ; G11B 5/39 ; H01F 1/026 ; H01F 1/032 ;
U.S. Cl.
CPC ...
G11B 5/31 ; G11B 5/33 ; G11B 5/39 ; H01F 1/026 ; H01F 1/032 ;
Abstract
The present invention provides a vertical current-type magneto-resistive element. The element includes an intermediate layer and a pair of magnetic layers sandwiching the intermediate layer, and at least one of a free magnetic layer and a pinned magnetic layer is a multilayer film including at least one non-magnetic layer and magnetic layers sandwiching the non-magnetic layer. The element area defined by the area of the intermediate layer through which current flows perpendicular to the film is not larger than 1000 &mgr;m .