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. 13, 2017
Filed:
Sep. 11, 2015
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Sameh Hassan, Northern Ireland, GB;
Wonjoon Jung, Eden Prairie, MN (US);
Mark Kief, Lakeville, MN (US);
Marcus Ormston, Northern Ireland, GB;
Assignee:
Seagate Technology LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G11B 5/31 (2006.01);
U.S. Cl.
CPC ...
G11B 5/313 (2013.01); G11B 5/3163 (2013.01);
Abstract
A read sensor that includes a free layer having a magnetization that changes according to an external magnetic field. The read sensor also includes an additional magnetic layer and a non-magnetic layer. The non-magnetic layer may include a corrugated surface facing the additional magnetic layer. The corrugated surface is configured to enhance uniaxial anisotropy in the read sensor.