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:
Apr. 15, 1997
Filed:
Aug. 03, 1995
Applicant:
Inventors:
Toshio Tanuma, Osaka, JP;
Minoru Kume, Osaka, JP;
Assignee:
Sanyo Electric Co., Ltd., Moriguchi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
428212 ; 428216 ; 428611 ; 428675 ; 428676 ; 428692 ; 428693 ; 428900 ; 360113 ; 324252 ; 338 / ;
Abstract
A magnetoresistive film includes, arranged in the following order, a substrate, a first ferromagnetic layer, a non-magnetic metal film, and a second ferromagnetic layer which has a coercive force different from that of the first ferromagnetic layer. The magnetoresistive film has an uneven number of inflection point(s) in its magnetization hysteresis curve in the process of magnetization transition from a first saturation magnetization state to a second saturation magnetization state, with a magnetic field change quantity Hb and a magnetic field change quantity Ha being in the following relation: