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:
Jun. 02, 1998
Filed:
Mar. 08, 1996
Applicant:
Inventors:
Kazuhiro Ouchi, Akita, JP;
Naoki Honda, Akita, JP;
Assignee:
Governor of Akita Perfecture, Akita-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428332 ; 428336 ; 4286 / ; 4286 / ; 428900 ; 2041922 ;
Abstract
A thin film magnetic recording medium comprising, a substrate, a crystal orientation enhancement underlayer of hcp structure formed on the substrate, a perpendicular orientation dispersion angle of c-axis thereof being not more than 10 degrees, and a cobalt-chromium-based magnetic layer formed on the underlayer, the magnetic layer having a thickness of 100 nm or less and containing 1 to 8 at % of niobium.