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:
May. 24, 2016
Filed:
Oct. 16, 2013
Applicant:
Western Digital (Fremont), Llc, Fremont, CA (US);
Inventors:
Zhigang Bai, Fremont, CA (US);
Ut Tran, San Jose, CA (US);
Zhanjie Li, Pleasanton, CA (US);
Kevin K. Lin, San Ramon, CA (US);
Feng Liu, San Ramon, CA (US);
Assignee:
Western Digital (Fremont), LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/17 (2006.01); G11B 5/127 (2006.01);
U.S. Cl.
CPC ...
G11B 5/127 (2013.01);
Abstract
A method and system provide a magnetic transducer having an air-bearing surface (ABS). The magnetic transducer includes a main pole having a pole tip, at least one auxiliary pole and at least one coil for energizing the main pole. The auxiliary pole(s) are adjacent to the main pole in a down track direction and recessed from the ABS. The coil(s) have a plurality of turns. At least one of the turns is between the auxiliary pole(s) and the ABS.