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. 11, 2000
Filed:
Dec. 01, 1998
Applicant:
Inventor:
Takashi Fukuchi, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; G11B / ;
U.S. Cl.
CPC ...
508582 ; 508268 ; 508302 ; 508550 ; 508557 ; 427128 ; 4286 / ; 4286 / ; 428695 ; 428900 ;
Abstract
In lubricant (5) of a magnetic recording medium made of conventional perfluoropolyether, one or more conductive high molecular compound is mixed. The conductive lubricant (5) prevents electric charge generated by frictional electricity from staying on the medium surface, and effectively prolongs the head-life by suppressing the break of the head element because of electric discharge between the disk medium and the head element. By employing the conductive lubricant, magnetic recording media and magnetic recording devices which are more reliable and durable can be realized.