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:
Feb. 11, 2014
Filed:
Dec. 13, 2010
Jie Zou, Eden Prairie, MN (US);
David Seets, Shorewood, MN (US);
James Wessel, Savage, MN (US);
Jianhua Xue, Maple Grove, MN (US);
Lixin Jia, Minneapolis, MN (US);
Jie Zou, Eden Prairie, MN (US);
David Seets, Shorewood, MN (US);
James Wessel, Savage, MN (US);
Jianhua Xue, Maple Grove, MN (US);
Lixin Jia, Minneapolis, MN (US);
Seagate Technology LLC, Cupertino, CA (US);
Abstract
An apparatus illustratively includes a return pole (RP) and a shield. The RP has a first RP magnetic layer, a second RP magnetic layer, and a RP non-magnetic layer. The RP non-magnetic layer separates and magnetically decouples the RP first and second magnetic layers. The shield has a first shield magnetic layer, a second shield magnetic layer, and a shield non-magnetic layer. The shield non-magnetic layer separates and magnetically decouples the shield first and second magnetic layers. A method illustratively includes generating magnetic flux and collecting the magnetic flux through an inner magnetic shell.