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. 23, 1997
Filed:
Mar. 07, 1994
Yoshinobu Okumura, Osaka, JP;
Xingbo Yang, Osaka, JP;
Kubota Corporation, Osaka, JP;
Abstract
A metal thin film magnetic recording medium comprising an underlying non-magnetic layer and a magnetic layer comprising a Co-alloy having a uni-axial magnetocrystalline anisotropy formed in this order by lamination on the surface of a non-magnetic substrate. On the substrate, are formed a seed layer comprising an oxygen-containing non-magnetic amorphous metal or a seed layer comprising a non-magnetic amorphous metal having an oxygen-containing layer (not illustrated) on the surface, and an underlying non-magnetic layer is laminated on the seed layer. Further, a seed layer comprising an amorphous Cr- or V-alloy is formed on the substrate, and an underlying non-magnetic layer is laminated on the seed layer.