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:
Aug. 27, 2019
Filed:
Apr. 18, 2018
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
James Gary Wessel, Savage, MN (US);
Chen Wang, Bloomington, MN (US);
Assignee:
Seagate Technology LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 11/105 (2006.01); G11B 5/48 (2006.01); G11B 7/1263 (2012.01); G11B 5/60 (2006.01); G11B 5/012 (2006.01); G11B 5/40 (2006.01); G11B 5/02 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/4866 (2013.01); G11B 5/012 (2013.01); G11B 5/02 (2013.01); G11B 5/40 (2013.01); G11B 5/6088 (2013.01); G11B 7/1263 (2013.01); G11B 2005/0021 (2013.01);
Abstract
An apparatus includes a slider having an air bearing surface (ABS). A near-field transducer (NFT) is disposed at or near the ABS. The slider has an optical waveguide configured to couple light from a laser source to the NFT. A thermal sensor is disposed at a leading edge of the NFT, the thermal sensor has an ABS section situated at or proximate the ABS and a distal section extending away from the ABS. The thermal sensor is configured to detect changes in output optical power of the laser source and contact between the slider and a magnetic recording medium.