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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.:

US 4472455 B1

PDFFull Text
Date of Patent:
Sep. 18, 1984

Filed:

Dec. 23, 1983

Production of magnetic recording media

Applicant:
Inventors:

Albert Kohl, Weisenheim, DE;

Werner Balz, Limburgerhof, DE;

Milena Melzer, Ludwigshafen, DE;

Norbert Schneider, Altrip, DE;

Eberhard Koester, Frankenthal, DE;

August Lehner, Roedersheim-Gronau, DE;

Assignee:

BASF Aktiengesellschaft, , DE;

Attorney:

Keil & Weinkauf

Primary Examiner:

Bernard D Pianalto

Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
427 48 ; 427128 ; 427130 ;
Abstract

Magnetic recording media are produced by dispersing finely divided anisotropic magnetic material and conventional additives in a solution of a polymeric binder in an organic solvent, or in an aqueous dispersion of a polymeric binder, adding a polymer based on hydrophilic ethylenically unsaturated compounds to the magnetic dispersion, applying a layer of the dispersion to a non-magnetizable base, orienting the anisotropic magnetic material in a magentic field and drying the applied layer.

Find Patent Forward Citations

Kohl, Albert. (1984). Production of magnetic recording media (U.S. Patent No. 4472455). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4472455

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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