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:
Jun. 20, 2017
Filed:
Sep. 25, 2014
Applicant:
Wd Media, Llc, San Jose, CA (US);
Inventors:
Kumar Srinivasan, San Mateo, CA (US);
Tuqiang Li, San Jose, CA (US);
Mrugesh Desai, San Jose, CA (US);
Assignee:
WD Media, LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/66 (2006.01); G11B 5/667 (2006.01); G11B 5/64 (2006.01); G11B 5/65 (2006.01); G11B 5/84 (2006.01);
U.S. Cl.
CPC ...
G11B 5/667 (2013.01); G11B 5/647 (2013.01); G11B 5/653 (2013.01); G11B 5/84 (2013.01);
Abstract
A recording medium having improved signal-to-noise ratio (SNR) capabilities includes a NiFeX-based magnetic seed layer over a soft magnetic underlayer, where X comprises an element that is soluble in and has a higher melting point than Ni. X may be selected from a group of elements, including ruthenium (Ru), which may facilitate growth of smaller grains and distributions in the corresponding magnetic recording layer(s).