Patent · US Expired

Magnetic recording medium and its manufacture

US4414287A · kind A · utility

7Cited by

0References

2Claims

0Family size

Assignee

BASF SE

Inventors

Eckhart Kneller · Witten, DE
Roland Koenig · Habach, DE
Eberhard Koester · Bischofswerda, DE
Werner Grau · Frankenthal (Pfalz), DE
Dieter Mayer · Ludwigshafen, DE

Key dates

Filing date	Jun 29, 1982
Grant date	Nov 8, 1983
Priority date	—
Expiry date	Jun 29, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/265
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A magnetic recording medium comprising a non-magnetic base which is dimensionally stable at up to 300.degree. C., and an 0.03-0.4 .mu.m thick magnetically hard recording layer of an Sm-Co alloy, vacuum-deposited thereon, which layer possesses uniaxial magnetic anisotropy in the plane of the layer, and a process for the manufacture of this recording medium.

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