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:
Nov. 12, 1985
Filed:
Feb. 07, 1984
Applicant:
Inventors:
Katsumi Ryoke, Kanagawa, JP;
Yasuhiro Abe, Kanagawa, JP;
Shinobu Iida, Kanagawa, JP;
Eiichi Tadokoro, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428194 ; 360134 ; 427128 ; 427131 ; 428219 ; 428340 ; 428694 ; 428695 ; 428900 ;
Abstract
A magnetic recording medium comprised of a support base having a magnetic recording layer positioned thereon is disclosed. The recording medium has positioned an aliphatic acid ester compound on an edge portion of the surface of the recording layer. By utilizing the aliphatic acid ester the recording medium has less audio output variation and the tracking control of the medium is improved. Further, the medium has good running characteristics and excellent sensitivity.