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:
Feb. 12, 2019
Filed:
Oct. 16, 2017
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Minjie Ma, Sunnyvale, CA (US);
Tim Rausch, Farmington, MN (US);
Edward Charles Gage, Lakeville, MN (US);
James Dillon Kiely, Edina, MN (US);
Paul M. Jones, Palo Alto, CA (US);
Yang Yang, Fremont, CA (US);
Assignee:
Seagate Technology LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 11/00 (2006.01); G11B 21/10 (2006.01); G11B 5/00 (2006.01); G11B 7/126 (2012.01); G11B 7/1267 (2012.01); G11B 7/1263 (2012.01); G11B 5/60 (2006.01);
U.S. Cl.
CPC ...
G11B 21/106 (2013.01); G11B 5/6088 (2013.01); G11B 7/126 (2013.01); G11B 7/1263 (2013.01); G11B 7/1267 (2013.01); G11B 2005/0021 (2013.01);
Abstract
Data is written to data sectors of a heat-assisted magnetic recording (HAMR) medium using a laser of a HAMR head supplied with a sum of an operational current and a threshold current. A service current is supplied to the laser when the head is over servo sectors of the medium, such that a temperature of the medium at the servo sectors is greater than or equal to a temperature of the head when over the servo sectors.