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:
May. 19, 2009
Filed:
Feb. 24, 2005
Hiroshi Chiba, Kawasaki, JP;
Yukiko Oshikubo, Kawasaki, JP;
Keiji Watanabe, Kawasaki, JP;
Eishin Yamakawa, Higashine, JP;
Takeshi Toukairin, Higashine, JP;
Hiroshi Chiba, Kawasaki, JP;
Yukiko Oshikubo, Kawasaki, JP;
Keiji Watanabe, Kawasaki, JP;
Eishin Yamakawa, Higashine, JP;
Takeshi Toukairin, Higashine, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
There are provided a composition that exhibits sufficient flowability and also displays high substrate adhesion, and a magnetic recording medium, a head slider and a magnetic recording device that use this composition as a lubricant and are thus not prone to faults. The composition comprises a fluorine-containing polyether represented by formula (1), (in formula (1), p and q represent, independently of the symbols in other formulae, any chosen integers). The composition can be produced by reacting a polymer represented by formula (2) with glycidol,HOCHCFO(CFCFO)(CFO)CFCHOH  (2)(in formula (2), p and q represent, independently of the symbols in other formulae, any chosen integers).