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:
Jun. 09, 2015
Filed:
Jul. 23, 2014
Applicant:
Hgst Netherlands B.v., Amsterdam, NL;
Inventors:
Stanley Burgos, Huntington Park, CA (US);
Matteo Staffaroni, Pleasanton, CA (US);
Barry C. Stipe, San Jose, CA (US);
Assignee:
HGST NETHERLANDS B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 11/00 (2006.01); G11B 5/00 (2006.01); G11B 5/48 (2006.01); G11B 5/60 (2006.01); G11B 13/08 (2006.01);
U.S. Cl.
CPC ...
G11B 5/4866 (2013.01); G11B 5/6088 (2013.01); G11B 13/08 (2013.01);
Abstract
An NFT is used in a HAMR magnetic write head. The NFT functions as a resonant circuit when in operation. The resonant circuit, which comprises the NFT, is a split-ring resonator (SRR) that has a capacitive portion and an inductive portion. The inductance and the capacitance results in a very well focused ultra-small spot-size concentrated on the magnetic media. The focus occurs at the capacitive area of the NFT with minimal to no impact upon the write pole of the HAMR magnetic head.