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. 12, 1992
Filed:
Mar. 26, 1990
Applicant:
Inventors:
Kenichi Yoden, Kanagawa, JP;
Tadashi Yasunaga, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428141 ; 428336 ; 428694 ; 428695 ; 428900 ;
Abstract
A magnetic recording medium comprises a non-magnetic substrate and a thin magnetic metal layer which is overlaid on the non-magnetic substrate. The volume of pores in the thin magnetic metal layer falls within the range of 0.005 to 0.05 ml per gram of the thin magnetic metal layer.