Patent · US Expired

Production of magnetic recording media

US4507457A · kind A · utility

1Cited by

3References

4Claims

0Family size

Assignee

BASF SE

Inventors

Albert Kohl · Laumersheim, DE
Norbert Schneider · Schorndorf, DE
Gregor Ley · Wattenheim, DE
Werner Balz · Schifferstadt, DE
Milena Melzer · Ludwigshafen, DE
Helmut Jakusch · Bischofswerda, DE

Key dates

Filing date	Aug 23, 1983
Grant date	Mar 26, 1985
Priority date	—
Expiry date	Aug 23, 2003

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/7013
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Magnetic recording media are produced by dispersing timely divided anisotropic magnetic material in a polymeric binder to a non-magnetizable base.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.