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:
May. 29, 2012
Filed:
Aug. 12, 2008
Shinji Hara, Tokyo, JP;
Yoshihiro Tsuchiya, Tokyo, JP;
Tsutomu Chou, Tokyo, JP;
Daisuke Miyauchi, Tokyo, JP;
Takahiko Machita, Tokyo, JP;
Shinji Hara, Tokyo, JP;
Yoshihiro Tsuchiya, Tokyo, JP;
Tsutomu Chou, Tokyo, JP;
Daisuke Miyauchi, Tokyo, JP;
Takahiko Machita, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A thin film magnetic head includes a magneto-resistance (MR) laminated body, a lower shield layer and an upper shield layer that face the first MR magnetic layer. The lower and upper shield layers respectively have first and second anti-parallel layers and first and second antiferromagnetic layers. An exchange coupling intensity relating to an antiferromagnetic coupling between the second anti-parallel layer and the second antiferromagnetic layer is greater in the peripheral area of a projection area than that of the projection area of the upper shield layer side end surface of the MR laminated body to the film surface's orthogonal direction.