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:
Nov. 04, 2003
Filed:
Oct. 02, 2002
Applicant:
Inventors:
Assignee:
Alps Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 3/02 ;
U.S. Cl.
CPC ...
G01L 3/02 ;
Abstract
When shape anisotropy energy (H) of giant magnetoresistive elements (GMR elements) is expressed by H=A*Js*(Br/&pgr;) using saturation magnetization Js of a free magnetic layer and remanent magnetic flux density Br, A is set within a range of −350<A<0, and pairs of the GMR elements having opposite directions of fixed magnetization are electrically connected so that a differential of electric resistance values between electrode layers is outputted.