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:
May. 08, 2012
Filed:
Dec. 11, 2009
Applicants:
Chengjun Sun, Naperville, IL (US);
B. Ramamurthy Acharya, Fremont, CA (US);
Inventors:
Chengjun Sun, Naperville, IL (US);
B. Ramamurthy Acharya, Fremont, CA (US);
Assignee:
WD Media, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/66 (2006.01);
U.S. Cl.
CPC ...
Abstract
FePt-based perpendicular magnetic recording (PMR) media including an ordering temperature reducing layer between a bottom FePtX magnetic recording layer and a nucleation layer. In one embodiment, an ordering temperature reducing layer of carbon is employed to lower the L10 ordering temperature of a FePtC recording layer.