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:
Feb. 24, 1998
Filed:
Nov. 21, 1996
Applicant:
Inventors:
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360110 ; 360113 ; 360119 ; 360126 ;
Abstract
A magnetometric sensor has a wide p-portion formed of almost perfectly spin-polarized material, a wide d-portion also formed of almost perfectly spin-polarized material different in coercive force and a narrow n-portion provided between the wide p-portion and the wide d-portion formed of the almost perfectly spin-polarized material or non-magnetic material, and one of the p-portion and the d-portion changes the spin axes of the conduction electrons in the opposite direction to the other in the presence of a magnetic field for providing a potential gap between the Fermi surface of the p-portion and the Fermi surface of the d-portion, thereby causing electric current to change the amount thereof.