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:
Aug. 16, 2011
Filed:
Sep. 14, 2009
Shaun H. Chen, Cupertino, CA (US);
Yasuo Sakane, San Jose, CA (US);
Henry S. Nishihira, San Jose, CA (US);
Chi Kong Kwok, Fremont, CA (US);
The V. Tran, San Jose, CA (US);
Bing-shiuan Chang, San Jose, CA (US);
Shaun H. Chen, Cupertino, CA (US);
Yasuo Sakane, San Jose, CA (US);
Henry S. Nishihira, San Jose, CA (US);
Chi Kong Kwok, Fremont, CA (US);
The V. Tran, San Jose, CA (US);
Bing-Shiuan Chang, San Jose, CA (US);
WD Media, Inc., San Jose, CA (US);
Abstract
A composite lubricant for recording disk media, a recording disk media including a layer of the composite lubricant, and method of manufacturing the same are described. The composite lubricant may include a non-phosphazene component and a phosphazene component where the non-phosphazene component is a difunctional perfluoropolyether compound terminated with first and second polar end groups, the first polar end group comprising a first number of hydroxyls and the second polar end includes a second number of hydroxyls, greater than the first number of hydroxyls. The phosphazene component may be a difunctional perfluoropolyether compound terminated with a phosphazene functional group and with a third polar end group, the third polar end group comprising a third number of hydroxyls equal to the second number of hydroxyls.