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:
Nov. 14, 2017
Filed:
Jun. 27, 2016
Applicant:
Hgst Netherlands B.v., Amsterdam, NL;
Inventors:
Pierre-Olivier Jubert, San Jose, CA (US);
Michael Konrad Grobis, San Jose, CA (US);
Richard Leo Galbraith, Rochester, MN (US);
Roger William Wood, Gilroy, CA (US);
Assignee:
WESTERN DIGITAL TECHNOLOGIES, INC., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/02 (2006.01); G11B 5/62 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/62 (2013.01); G11B 2005/0021 (2013.01);
Abstract
According to one embodiment, a heat assisted magnetic recording system includes a magnetic recording medium comprising a magnetic recording layer, where the magnetic recording layer includes a plurality of physical bits. Each physical bit has a perpendicular magnetic anisotropy and one of at least three magnetic states, where the at least three magnetic states include a +1 magnetic state, a 0 magnetic state, and a −1 magnetic state.