Magnetic recording medium and magnetic recording method

Details Magnetic recording medium and magnetic recording method Magnetic recording medium and magnetic recording method

1983-09-23

1988-03-29

Evans, Arthur G.

Recorders

Magnetographic

Radiation sensitive

346 742, G01D 1512

Patent

active

047347082

ABSTRACT:
In a magnetically recording and erasing the magnetic latent image on the magnetic recording medium, the magnetic recording medium includes a base layer, a first magnetic layer in which a repetitive magnetic pattern is in advance formed, and a second magnetic layer on which the magnetic latent image to be formed is thermo-magnetically formed. A method of erasing the magnetic latent image on the second magnetic layer includes the steps of simultaneously applying an external magnetic field and heat to be thermally magnetized layer of a magnetic recording medium.

REFERENCES:
patent: 4032923 (1977-06-01), Pond et al.
patent: 4442441 (1984-04-01), Kikuchi et al.
patent: 4480250 (1984-10-01), Nishimura et al.
patent: 4503438 (1985-03-01), Saitoh et al.

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