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. 16, 2014
Filed:
Nov. 29, 2012
Applicant:
Hgst Netherlands B.v., Amsterdam, NL;
Inventors:
Wen-Chien D. Hsiao, San Jose, CA (US);
Aron Pentek, San Jose, CA (US);
Katalin Pentek, San Jose, CA (US);
Junsheng Yang, San Jose, CA (US);
Assignee:
HGST Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/127 (2006.01); G11B 21/18 (2006.01);
U.S. Cl.
CPC ...
G11B 5/127 (2013.01); G11B 21/18 (2013.01);
Abstract
A magnetic write head having a stitched magnetic pole (also referred to as a shaping layer) for conducting magnetic flux to the pole tip portion of a magnetic write pole. The stitched magnetic pole has a shape so as to be thicker in a central region that is aligned with the pole tip of the write pole and is thinner a its outer sides. This shape helps to channel magnetic flux to the pole tip portion of the write pole while maintaining sufficient pole surface area for high data rate recording.