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. 05, 2005
Filed:
Apr. 26, 2001
Lujun Chen, Eden Prairie, MN (US);
James H. Giusti, Chanhassen, MN (US);
Juan J. Fernandez-de-castro, Lakeville, MN (US);
Lujun Chen, Eden Prairie, MN (US);
James H. Giusti, Chanhassen, MN (US);
Juan J. Fernandez-de-Castro, Lakeville, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
The present invention is directed to a spin valve sensor for use in a data storage system, that is adapted to receive a sense current and produce a GMR effect in response to applied magnetic fields. The spin valve sensor includes first and second ferromagnetic free layers, a spacer layer positioned between the first and second ferromagnetic free layers, and a biasing component. The first ferromagnetic free layer has a magnetization (M) in a first direction, when in a quiescent (non-biased) state. The second ferromagnetic free layer has a magnetization (M) in a second direction that is anti-parallel to the first direction, when in a quiescent (non biased) state.