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. 18, 1996
Filed:
Sep. 30, 1993
Applicant:
Inventors:
Ryosuke Isobe, Hino, JP;
Hideaki Wakamatsu, Hino, JP;
Assignee:
Konica Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; B32B / ;
U.S. Cl.
CPC ...
428323 ; 428328 ; 428330 ; 428336 ; 428402 ; 428403 ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 428900 ;
Abstract
There is disclosed a magnetic recording medium comprising an uppermost layer (magnetic layer containing a ferromagnetic metal powder) and the ferromagnetic metal powder containing Fe, Al and one or more rare earth elements selected from the group consisting of Sm, ND, Y and Pr. The magnetic recording medium has a good electromagnetic converting property and running durability and which is particularly suitable for digital recording media.