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:
Sep. 27, 2016
Filed:
Nov. 13, 2015
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Zhengqi Lu, Londonderry, GB;
Daniel Hassett, Newtowncunningham, IE;
Paula McElhinney, Derry, GB;
Jiansheng Xu, Londonderry, GB;
Assignee:
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G11B 5/33 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3912 (2013.01); G11B 5/332 (2013.01);
Abstract
A reader sensor comprising a sensor stack and a composite top shield. The composite top shield includes a bulk shield portion and a SAF portion, the SAF portion comprising a top magnetic layered structure and a bottom magnetic layered structure with a non-magnetic layer therebetween. Each of the magnetic layered structures has at least one soft magnetic material layer bounded by layers comprising magnetic material having a magnetic moment of at least 1.4 T.