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:
Dec. 14, 1999
Filed:
May. 30, 1996
Applicant:
Inventors:
Teruhisa Yokosawa, Nagano, JP;
Shinji Shirai, Nagano, JP;
Katsuya Masuda, Nagano, JP;
Yoichi Tei, Nagano, JP;
Mihoyo Iwase, Nagano, JP;
Assignee:
Fuji Electric Co., Ltd, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428408 ; 428422 ; 4286 / ; 4286 / ; 428900 ; 427130 ; 427131 ;
Abstract
A magnetic recording medium having a carbon protective layer for protecting a magnetic layer formed on a non-magnetic base includes a liquid lubrication layer formed by coating on the carbon protective layer. The liquid lubrication layer includes a hydrocarbon containing lubricant and a perfluoropolyether containing lubricant.