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:
Jul. 25, 2023
Filed:
Mar. 01, 2022
Applicant:
Seagate Technology Llc, Fremont, CA (US);
Inventors:
Tae-Woo Lee, Eden Prairie, MN (US);
Derek Leventry, Eden Prairie, MN (US);
Assignee:
SEAGATE TECHNOLOGY LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/00 (2006.01); G11B 5/31 (2006.01); G11B 13/08 (2006.01); G11B 5/48 (2006.01); G11B 5/60 (2006.01);
U.S. Cl.
CPC ...
G11B 5/314 (2013.01); G11B 5/4866 (2013.01); G11B 5/6088 (2013.01); G11B 13/08 (2013.01); G11B 2005/0021 (2013.01);
Abstract
A heat-assisted magnetic recording head includes a waveguide and a near-field transducer. The near-field transducer includes a plasmonic disk disposed proximal to the waveguide. The plasmonic disk includes a first plasmonic layer, a second plasmonic layer, and a middle layer. The first plasmonic layer is coupled to the waveguide. The second plasmonic layer is disposed distal to the waveguide relative to the first plasmonic layer. The middle layer is disposed between the first plasmonic layer and the second plasmonic layer.