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:
Dec. 01, 1987
Filed:
Mar. 11, 1986
Applicant:
Inventors:
Fujio Matsumoto, Ibaraki, JP;
Hajime Doi, Ibaraki, JP;
Kunio Mizushima, Ibaraki, JP;
Masaya Funahashi, Osaka, JP;
Tomizo Taniguchi, Kyoto, JP;
Shoichi Sakamoto, Ibaraki, JP;
Assignee:
Hitachi Maxell, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; B65D / ;
U.S. Cl.
CPC ...
206444 ; 360133 ; 428694 ; 428695 ; 428900 ; 428 35 ; 428 68 ; 428 74 ;
Abstract
A recording disc cartridge comprising a recording disc containing, at least in its surface layer, at least one compound selected from the group consisting of an aliphatic acid and its salt and derivative, a case in which the recording disc is rotatively contained, and a liner comprising polyester fiber which is interposed between the case and the recording disc with facing the disc, which has good durability and less drop out.