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. 14, 2014
Filed:
Jan. 30, 2012
Mina Amo, Ibaraki, JP;
Katsumi Mabuchi, Ibaraki, JP;
Hiroshi Yoshida, Ibaraki, JP;
Bruno Marchon, Palo Alto, CA (US);
Qing Dai, San Jose, CA (US);
Mina Amo, Ibaraki, JP;
Katsumi Mabuchi, Ibaraki, JP;
Hiroshi Yoshida, Ibaraki, JP;
Bruno Marchon, Palo Alto, CA (US);
Qing Dai, San Jose, CA (US);
HGST Netherlands B.V., Amsterdam, NL;
Abstract
According to one embodiment, a lubricant includes a perfluoropolyether having a chemical structure of: wherein Rf is at least one of: —CFO(CFCFO)(CFO)CF— and —CFCFO(CFCFCFO)CFCF—, with m representing 0 or a positive integer, n representing 0 or a positive integer, and k representing 0 or a positive integer, and wherein R1 to R4 are selected from a group consisting of —H or with at least one of R1 to R4 being