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. 09, 1982
Filed:
Dec. 26, 1978
Bernard P Videc, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
The invention provides a carrier foil for magnetic recording tapes composed of a thermoplastic synthetic resin, which foils have been manufactured so that the stiffness (elasticity modulus) E.sub.1 in the longitudinal direction of the foil is at least 4000 N/mm.sup.2 and the stiffness (elasticity modulus) in the transverse direction of the foil is at least 1.3 E.sub.1. These carrier foils are more suitable for very thin magnetic tapes and are more resistant against defects such as buckling, folding, wrinkling and cupping than known carrier foils for record carriers having a comparable stiffness, but in which the stiffness distribution is different.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile