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:
Apr. 08, 1986
Filed:
Jul. 18, 1984
Applicant:
Inventors:
Mikihiko Kato, Kanagawa, JP;
Tsutomu Okita, Kanagawa, JP;
Shigeo Komine, Kanagawa, JP;
Yasutoshi Okuzawa, Kanagawa, JP;
Kazuhiko Morita, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428 65 ; 360135 ; 427 44 ; 427 541 ; 427128 ; 427131 ; 428 64 ; 428336 ; 428137 ; 428195 ; 4284259 ; 428480 ; 428694 ; 428695 ; 428900 ;
Abstract
A flexible magnetic disc comprising a magnetic sheet having on at least a part thereof a protective layer comprising (a) a straight or branched chain compound having an acrylic or methacrylic acid ester moiety on the end of at least one of the principal chain and the side chain, (b) an aromatic ketone, and (c) a silicone lubricant, said layer being hardenable by photopolymerization.