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. 03, 2014
Filed:
Mar. 08, 2011
Gerardo A. Bertero, Redwood City, CA (US);
Michael Alex, Fremont, CA (US);
Christopher B. Wolf, San Jose, CA (US);
Eric J. Champion, San Jose, CA (US);
Gerardo A. Bertero, Redwood City, CA (US);
Michael Alex, Fremont, CA (US);
Christopher B. Wolf, San Jose, CA (US);
Eric J. Champion, San Jose, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A perpendicular magnetic recording (PMR) disk used in energy assisted magnetic recording drives is described. The PMR disk includes a substrate, a magnetic recording layer disposed above the substrate, an exchange coupling layer disposed above the magnetic recording layer, and a capping layer disposed above the exchange coupling layer. The capping layer has a Curie temperature greater than the Curie temperature of the magnetic recording layer.