Magnetic latent image forming apparatus

Details Magnetic latent image forming apparatus Magnetic latent image forming apparatus

1981-10-06

1984-01-24

Tarcza, Thomas H.

Recorders

Magnetographic

Radiation sensitive

G01D 1512

Patent

active

044279876

ABSTRACT:
In a magnetic latent image forming apparatus the magnetization of the medium is initially set and portions of the medium, selected in accordance with image data, are then heated to temperatures below the Curie temperature of the medium. Before the medium cools, a bias magnetic field is applied to magnetize the heated portions.

REFERENCES:
patent: 2915594 (1959-12-01), Borns, Jr. et al.
patent: 3582570 (1971-06-01), Cushner et al.
patent: 4314257 (1982-02-01), Tokunaga et al.
Kurtzig et al., Reorientation and Curie Point Writing in Orthoferrites, J. of Applied Physics, Mar. 15, 1971, pp. 1804-1805.
Huth, Calculations of Stable Domain Radii Produced by Thermomagnetic Writing, IBM J. Res. Develop., Aug. 8, 1973, pp. 100-109.

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