Thermo-magnetic recording device

Details Thermo-magnetic recording device Thermo-magnetic recording device

1986-11-07

1987-10-20

Evans, Arthur G.

Recorders

Magnetographic

Radiation sensitive

346742, G01D 1512

Patent

active

047017686

ABSTRACT:
Is disclosed a thermo-magnetic recording device in which a magnetized latent image is produced on a magnetic layer which is initialized through unidirectional magnetization thereof, in the process of locally heating the magnetic layer. The thermo-magnetic recording device includes: (a) a heat generating roller for heating a local portion of the magnetic layer, through contact of an outer surface of the roller with the local portion of the magnetic layer; and (b) a magnetic-field generating device for generating, at the local portion of the magnetic layer, a magnetic field which has the same N-S direction as that of the unidirectional magnetization, and thereby initializing the magnetic layer.

REFERENCES:
patent: 4547782 (1985-10-01), Yamasawa et al.
patent: 4621269 (1986-11-01), Kimoto et al.

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