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:
Oct. 08, 2019
Filed:
Apr. 11, 2017
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Kangkang Wang, Fremont, CA (US);
Ganping Ju, Pleasanton, CA (US);
Edward Charles Gage, Lakeville, MN (US);
Assignee:
Seagate Technology LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/245 (2006.01); G11B 5/024 (2006.01); H01F 13/00 (2006.01); H01F 6/06 (2006.01); B23K 26/00 (2014.01); B23K 26/082 (2014.01); B23K 26/08 (2014.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/0245 (2013.01); B23K 26/0006 (2013.01); B23K 26/082 (2015.10); B23K 26/0823 (2013.01); H01F 6/06 (2013.01); H01F 13/006 (2013.01); G11B 2005/0021 (2013.01);
Abstract
An apparatus comprises a magnet housing dimensioned to receive a heat-assisted magnetic recording (HAMR) medium or a hard disk drive comprising at least one HAMR medium. A degausser is disposed in the magnet housing and is configured to generate at least one field sufficient to erase the HAMR medium, where the HAMR medium has a coercivity of between about 20 and 100 kOe at room temperature.