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. 24, 1985
Filed:
Nov. 23, 1982
Naoto Akahane, Takatsuki, JP;
Yoshitake Yamaguchi, Nagaokakyo, JP;
Takeshi Matsuura, Otokuni, JP;
Seiji Watatani, Takatsuki, JP;
Hitachi Maxell, Ltd., Osaka, JP;
Abstract
A magnetic recording medium such as a magnetic tape, which comprises a base film, a magnetic layer having an elastic modulus at 1% elongation of not less than 1,200 kg/mm.sup.2 totally in both longitudinal and width directions which is higher than that of the base film, said magnetic layer being formed on one surface of the base film, and a backcoat layer having an elastic modulus at 1% elongation of not less than 1,200 kg/mm.sup.2 totally in both longitudinal and width directions which is higher than that of the base film, said backcoat layer being formed on another surface of the base film, said magnetic recording medium having a total thickness of not more than 17.mu., said magnetic recording medium having excellent mechanical strength and being used without buckle and injury during usage even in a thin thickness.