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:
Jan. 31, 2017
Filed:
Mar. 27, 2010
Kota Suzuki, Tokyo, JP;
Koichi Shimokawa, Tokyo, JP;
Katsushi Hamakubo, Tokyo, JP;
Kae Itoh, Tokyo, JP;
Kota Suzuki, Tokyo, JP;
Koichi Shimokawa, Tokyo, JP;
Katsushi Hamakubo, Tokyo, JP;
Kae Itoh, Tokyo, JP;
WD Media (Singapore) Pte. Ltd., Irvine, CA (US);
Abstract
A lubricant compound is contained in a lubrication layer of a magnetic disk in which at least a magnetic layer, a protective layer, and a lubrication layer are sequentially provided on a substrate, and the lubricant compound contains a component A represented by Chemical formula 1 and a component B represented by Chemical formula 2: wherein X in Chemical formula 1 represents OH wherein X in Chemical formula 2 represents OCHCH(OH)CHOH,and the lubricant compound further contains a component C made of a specific compound having a phosphezene ring in the structure thereof.