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:
Aug. 21, 2001
Filed:
Oct. 07, 1998
Applicant:
Inventors:
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/66 ;
U.S. Cl.
CPC ...
G11B 5/66 ;
Abstract
A magnetic recording medium using a substrate, such as a glass substrate, and having, in combination, superior magnetic and magnetic recording properties and good adhesion of a magnetic layer to the substrate. The magnetic recording medium has an intermediate layer of chromium between the substrate and an underlayer of Ni-based non-magnetic material on which a magnetic layer of Co-based magnetic alloy is superimposed. A method of producing the magnetic recording medium is also disclosed, wherein each of the layers is formed by a sputtering process at a sufficient pressure to promote granular growth of crystals of the layer.