Magnetic recording medium with highly anisotropic particles

Details Magnetic recording medium with highly anisotropic particles Magnetic recording medium with highly anisotropic particles

1975-01-27

1976-10-12

Moffitt, James W.

Dynamic magnetic information storage or retrieval

Recording on or reproducing from an element of diverse utility

Card

360131, 235 6111D, 235 6112M, 340149A, G11B 2504

Patent

active

039862062

ABSTRACT:
A magnetic recording medium having uniaxially highly anisotropic particles with an easy axis intrinsic coercive force of less than 1900 oersteds. Also disclosed is a machine readable magnetically encoded document employing the medium of the present invention and an apparatus for reading such document and validating the same.

REFERENCES:
patent: 3864754 (1975-02-01), Miklos et al.
patent: 3878367 (1975-04-01), Fayling et al.

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