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:
Jan. 27, 2015
Filed:
May. 30, 2014
Hgst Netherlands B.v., Amsterdam, NL;
Qing Dai, San Jose, CA (US);
Xing-Cai Guo, Tracy, CA (US);
Cyril Guyot, San Jose, CA (US);
Lidu Huang, Danville, CA (US);
Bruno Marchon, Palo Alto, CA (US);
Erhard Schreck, San Jose, CA (US);
HGST Netherlands B.V., Amsterdam, NL;
Abstract
A method of radially positioning a heat assisted magnetic recording (HAMR) head writes data to a first band, wherein a radial position of the HAMR head within each data track is defined by a positional bias and a track location. A determination is made regarding whether a threshold has been reached with respect to the first band. If the write threshold has been reached with respect to the first band, then the positional bias associated with the first band is modified to evenly distribute thermal exposure of data tracks in the first band.