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:
Sep. 19, 1989
Filed:
Jun. 05, 1987
Applicant:
Inventors:
Hirokazu Moriizumi, Mito, JP;
Hiroto Nagamine, Mito, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428323 ; 428329 ; 428694 ; 428695 ; 428900 ;
Abstract
Magnetic recording mediums comprise a non-magnetic support and a magnetic recording layer formed on one side of the support. The magnetic recording layer comprises a magnetic powder dispersed in a specific type of vinyl chloride resin having a --SO.sub.3 M or group, in which M represents a monovalent metal or NH.sub.4, and an epoxy group in the molecule. A back coat layer comprising the specific type of vinyl chloride resin may also be formed on the other side of the support.
Moriizumi, Hirokazu. (1989). Magnetic recording mediums comprising a modified vinyl chloride resin (U.S. Patent No. 4868046). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4868046
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile