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. 19, 2018
Filed:
Apr. 21, 2017
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Yuhang Cheng, Edina, MN (US);
Chubing Peng, Eden Prairie, MN (US);
Tae-Woo Lee, Eden Prairie, MN (US);
Xiaoyue Huang, Eden Prairie, MN (US);
Song Chen, Edina, MN (US);
Assignee:
Seagate Technology LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 11/00 (2006.01); G11B 5/31 (2006.01); G11B 5/48 (2006.01);
U.S. Cl.
CPC ...
G11B 5/314 (2013.01); G11B 5/4866 (2013.01);
Abstract
A waveguide core extends from an input coupler towards a media-facing surface of a read/write head. A cap is located between a terminating end of the waveguide core and the media-facing surface. The cap is formed of a high index of refraction, high-corrosion resistant material that is different than a material used to form the waveguide core. A near-field transducer is proximate the cap in a down-track direction. A head overcoat on the media-facing surface covers the cap.