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:
May. 07, 1991
Filed:
Sep. 12, 1990
Applicant:
Inventors:
Toshiaki Morichika, Osaka, JP;
Toshio Tani, Osaka, JP;
Nobuhiko Tanaka, Osaka, JP;
Tatsuhiko Kadowaki, Osaka, JP;
Assignee:
Kubota Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428694 ; 428611 ; 428678 ; 428900 ; 428928 ;
Abstract
A magnetic recording medium having a low noise level and comprising a magnetic film made of a Co-Ni-Cr-P alloy. The Co-Ni-Cr-P alloy has a composition represented by the formula