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. 11, 2017
Filed:
Feb. 10, 2016
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Wenzhong Zhu, Apple Valley, MN (US);
Edward Charles Gage, Lakeville, MN (US);
Alfredo Sam Chu, Prior Lake, MN (US);
Assignee:
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 11/00 (2006.01); G11B 5/455 (2006.01); G11B 5/00 (2006.01); G11B 5/31 (2006.01); G11B 5/48 (2006.01); G11B 11/105 (2006.01); G11B 5/60 (2006.01);
U.S. Cl.
CPC ...
G11B 5/455 (2013.01); G11B 5/314 (2013.01); G11B 5/48 (2013.01); G11B 5/6088 (2013.01); G11B 11/10543 (2013.01); G11B 2005/0016 (2013.01); G11B 2005/0021 (2013.01);
Abstract
For each head in a collection of heat-assisted magnetic recording read/write heads, a reader width and a writer width is measured. A predicted life is determined for each head based on the respective reader width and writer width. In a first set of drives having relatively fewer heads per drive, a first subset of the heads having a higher value of the predicted life are used. In a second set of drives having relatively more heads per drive, a second subset of the heads having a lower value of the predicted life are used.