Method for preparing a magnetic recording medium

Details Method for preparing a magnetic recording medium Method for preparing a magnetic recording medium

1994-03-24

1995-01-24

Pianalto, Bernard

Coating processes

Magnetic base or coating

Magnetic coating

427128, 427130, 427131, 427226, 4273742, 427380, 4273982, H01F 1002

Patent

active

053841581

ABSTRACT:
A method for preparing a magnetic recording medium includes the following steps of providing a substrate; providing a solution consisting essentially of ions of cobalt, manganese and iron in deionized water; and preheating the substrate and spraying the solution onto the preheated substrate at an elevated temperature to uniformly distribute droplets thereon and form a magnetic recording medium film on the subtrate. Such method can prepare a magnetic thin film which has a high recording density and is cost-effective.

REFERENCES:
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patent: 4959243 (1990-09-01), Steininger
patent: 5055322 (1991-10-01), Yamamoto
patent: 5215782 (1993-06-01), Yoshioka et al.
Os-doped Y-Fe.sub.2 O.sub.3 thin films having coercivity and high coercive squareness; O. Ishii et al; J. Appln. Phys. 55 (6) 15 Mar. 1984 pp. 2269-2271.
Formation of Ferrite Thin Films by Vacuum Evaporation with Annealing Process.
M. Satou et al; IEEE Transactions on Magnetics vol. MAG-13, No. 5, Sep. 1977, pp. 1400-1402.
Magnetic Recording Characteristics of Sputtered Y-Fe.sub.2 O.sub.3 Thin Film Disks; S. Hattori et al.
IEEE Transactions on Magnetics, vol. MAG-15, 6 Nov. 1979, pp. 1549-1551.
New preparation process for sputtered Y-Fe.sub.2 O.sub.3 thin film disks Ishii et al; IEEE Transactions on Magentics, vol. MAG-16, No. 5, Sep.; pp. 1114-1116.
Preparation of thin films in the system Y Fe.sub.2 O.sub.3 -Fe.sub.2 3 for recording media by spray pyrolysis of organometallic solutions using an ultrasonic pump; Michel Langlet et al; IEEE Transactions on Magnetics vol. MAG-22, No. 3, May 1986, pp. 151-156.
Roadmap for 10 Gbit/in.sup.2 Media: Challenges; Edward S. Murdock et al. IEEE Transactions on Magnetics, Vo. 28, No. 5, Sep. 1992, pp. 3078-3083.

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