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:
Jan. 01, 2013
Filed:
Feb. 26, 2009
Applicants:
Yoshihiro Tsuchiya, Tokyo, JP;
Shinji Hara, Tokyo, JP;
Tsutomu Chou, Tokyo, JP;
Hironobu Matsuzawa, Tokyo, JP;
Inventors:
Yoshihiro Tsuchiya, Tokyo, JP;
Shinji Hara, Tokyo, JP;
Tsutomu Chou, Tokyo, JP;
Hironobu Matsuzawa, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01);
U.S. Cl.
CPC ...
Abstract
An MR element according to the present invention has the superior effects that further improve an MR ratio because a structure of a spacer layeris configured of a certain three-layer structure with certain materials, and at least one of a first ferromagnetic layerand a second ferromagnetic layercontains a certain amount of an element selected from the group of nitrogen (N), carbon (C), and oxygen (O).