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. 18, 2000
Filed:
Oct. 15, 1997
Eiichi Omata, Saku, JP;
Satoru Araki, Chiba, JP;
Masashi Sano, Saku, JP;
Yasuyuki Yamamoto, Chiba, JP;
TDK Corporation, Tokyo, JP;
Abstract
In a magnetoresistance effect element, a pinning layer (antiferromagnetic layer) has a composition of Ru--Mn or Ru--M--Mn where M represents at least one selected from Rh, Pt, Pd, Au, Ag, and Re, and impurity concentrations of the pinning layer are regulated. Accordingly, there can be provided the magnetoresistance effect element having a magnetic multilayered film which is excellent in corrosion resistance, thermal stability and magnetic field sensitivity and has a large MR change ratio, as well as a magnetoresistance device, such as a magnetoresistance effect type head or the like, using such a magnetoresistance effect element.