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. 07, 2016
Filed:
May. 10, 2013
Showa Denko K.k., Minato-ku, Tokyo, JP;
Kazuya Niwa, Ichihara, JP;
Tetsuya Kanbe, Ichihara, JP;
Yuji Murakami, Ichihara, JP;
Lei Zhang, Ichihara, JP;
SHOWA DENKO K.K., Tokyo, JP;
Abstract
A thermally-assisted magnetic recording medium or a microwave-assisted magnetic recording medium includes: an orientation control layer () that is formed on a substrate (); an underlayer () that is formed on the orientation control layer (); and a magnetic layer () that is formed on the underlayer () and contains an alloy having an L1type crystal structure as a main component, in which the underlayer () includes an MgO underlayer () that contains MgO and has a (100) orientation and a nitride underlayer () that contains at least one nitride selected from the group consisting of TaN, NbN, and HfN and has a (100) orientation.