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:
Apr. 25, 2000
Filed:
Feb. 23, 1998
Applicant:
Inventor:
Takashi Fukuchi, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428336 ; 428421 ; 4286 / ; 4286 / ; 428900 ; 508296 ; 508298 ; 508582 ;
Abstract
A lubricant containing a perfluoropolyether compound and a magnetic recording medium using the same are disclosed. When the lubricant is applied to a magnetic disk, the chain decomposition of perfluoropolyether ascribable to hydrofluoric acid is reduced. In addition, the generation of a highly viscous substance is reduced.