Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1981-07-13

1983-12-27

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

428212, 428900, G11B 2300, B32B 702

Patent

active

044234538

ABSTRACT:
A magnetic recording medium having two coated magnetic layers of a first magnetic layer and a second magnetic layer on a non-magnetic substrate. The first magnetic layer has a coercive force of 400 to 590 Oe and a thickness of 2.1 to 2.8.mu. and said second magnetic layer has a coercive force of 590 to 800 Oe and a thickness of at least 2.1.mu..

REFERENCES:
patent: 3328195 (1967-06-01), May
patent: 4075384 (1978-02-01), Suzuki et al.

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