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:
Jun. 05, 2012
Filed:
Aug. 31, 2009
Applicants:
Shinji Hara, Tokyo, JP;
Tsutomu Chou, Tokyo, JP;
Yoshihiro Tsuchiya, Tokyo, JP;
Hironobu Matsuzawa, Tokyo, JP;
Inventors:
Shinji Hara, Tokyo, JP;
Tsutomu Chou, Tokyo, JP;
Yoshihiro Tsuchiya, Tokyo, JP;
Hironobu Matsuzawa, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/33 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an MR element of the present invention, an effect of an extremely-high MR ratio is obtained since a crystal structure of a CoFe magnetic layer in the vicinity of an interface with a spacer layer is formed as a close packed structure, such as an hcp structure and an fcc structure, and a total existing ratio of these crystal structures is 25% or more by an area ratio.