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:
Mar. 10, 1998
Filed:
Apr. 04, 1994
Applicant:
Inventors:
Assignee:
Hitachi Maxell, Ltd., Osaka-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
428336 ; 428480 ; 4286 / ; 428900 ; 360132 ;
Abstract
A magnetic tape cartridge comprising a magnetic tape suitable for long time recording which has a coefficient of thermal shrinkage of 0.6% or less the coefficient being measured after the tape is wound around a hub at least 300 turns and kept at 105.degree. C. for 30 minutes.