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, 1985
Filed:
May. 06, 1982
Applicant:
Inventors:
Tatsuji Kitamoto, Odawara, JP;
Goro Akashi, Odawara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Minami-Ashigara, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; B32B / ;
U.S. Cl.
CPC ...
428328 ; 252 6254 ; 360134 ; 360135 ; 360136 ; 427128 ; 427131 ; 427132 ; 428329 ; 428336 ; 428694 ; 428900 ;
Abstract
In a magnetic recording medium comprising a non-magnetic support and a magnetic recording layer coated thereon in which ferromagnetic particles are dispersed in a non-magnetic binder, the ferromagnetic particles are cubic particles of 0.3 or less micron and are subjected to an orientation treatment in the vertical direction to the recording surface, whereby the output and S/N ratio in a high density recording are increased.