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. 13, 2018
Filed:
Jan. 11, 2018
Showa Denko K.k., Tokyo, JP;
Kazuya Niwa, Chiba, JP;
Lei Zhang, Chiba, JP;
Yuji Murakami, Chiba, JP;
Hisato Shibata, Chiba, JP;
Takayuki Fukushima, Chiba, JP;
Takehiro Yamaguchi, Chiba, JP;
Tetsuya Kanbe, Chiba, JP;
SHOWA DENKO K.K., Tokyo, JP;
Abstract
A magnetic recording medium includes a substrate, a first heat sink layer, a barrier layer, a second heat sink layer, and a magnetic layer that are successively stacked. The magnetic layer is made of a material including a first main component that is an alloy having a L1crystal structure and a content of 50 at % or higher, or content of 50 mol % or higher. The barrier layer is made of a material including a second main component that is one of an oxide, a nitride, and a carbide having a content of 50 at % or higher, or content of 50 mol % or higher.