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:
Mar. 31, 2015
Filed:
Jun. 29, 2012
Bollapragada Varaprasad, Tsukuba, JP;
Yukiko Takahashi, Tsukuba, JP;
Kazuhiro Hono, Ibaraki, JP;
Antony Ajan, Santa Clara, CA (US);
Hua Yuan, Fremont, CA (US);
Alexander S. Chernyshov, San Jose, CA (US);
Bollapragada Varaprasad, Tsukuba, JP;
Yukiko Takahashi, Tsukuba, JP;
Kazuhiro Hono, Ibaraki, JP;
Antony Ajan, Santa Clara, CA (US);
Hua Yuan, Fremont, CA (US);
Alexander S. Chernyshov, San Jose, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A perpendicular magnetic recording medium, comprising: a substrate; a buffer layer deposited in a first orientation on top of the substrate; an underlayer deposited in a second orientation on top of the buffer layer, the underlayer comprising an electrically conductive oxide; and a magnetic recording layer deposited on top of the underlayer and having an axis of magnetic anisotropy substantially perpendicular to the surface thereof.