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. 22, 1998
Filed:
Feb. 12, 1997
Akira Somiya, Saku, JP;
Shigeo Kurose, Saku, JP;
TDK Corporation, Tokyo, JP;
Abstract
The magnetic recording medium of this invention comprises a magnetic layer formed on one of the opposite surfaces of a nonmagnetic support and a backcoat layer using a nonmagnetic powder and a binder as main components thereof and formed on the other surface thereof and uses as the binder in the backcoat layer a vinyl chloride-based copolymer having an amine-modified vinyl unit and an acidic functional group-containing vinyl unit. Owing to this construction, a paint to be used therein realizes perfect dispersibility and perfect stability. As a result, the backcoat layer to be formed therein is enabled to acquire excellent surface properties and the magnetic recording medium to be finally produced is allowed to exhibit an excellent electromagnetic conversion property.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile