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. 22, 2020
Filed:
Sep. 04, 2019
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Victor Sapozhnikov, Minnetonka, MN (US);
Taras Grigoryevich Pokhil, Arden Hills, MN (US);
Mohammed Shariat Ullah Patwari, Edina, MN (US);
Shaun Eric McKinlay, Eden Prairie, MN (US);
Assignee:
SEAGATE TECHNOLOGY LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G11B 5/31 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3932 (2013.01); G11B 5/3146 (2013.01); G11B 5/398 (2013.01); G11B 5/3912 (2013.01); G11B 2005/3996 (2013.01);
Abstract
A reader includes a free layer and a side shield that biases the free layer. The side shield includes a main bias layer having a first magnetic moment value and a first magnetization direction. The side shield also includes a compensation bias layer having a second magnetic moment value that is less than the first magnetic moment value and a second magnetization direction that is opposite to the first magnetization direction.