Magnetic recording system

Details Magnetic recording system Magnetic recording system

1994-09-13

1997-02-04

Kiliman, Leszek

Stock material or miscellaneous articles

Composite

Of inorganic material

428694R, 428694T, 428900, 428 642, 360113, 360119, 360131, 360134, 360135, 360125, 360126, G11B 566, G11B 574, B32B 900

Patent

active

055996353

ABSTRACT:
A magnetic recording system for recording signals onto coat-type magnetic tape using magnetic powder by using a magnetic head, and a magnetic recording system for recording signals onto a coat-type magnetic disk using magnetic powder by running magnetic head in contact with the disk, are disclosed. The magnetic tape has a coercive force Hc of 2000 to 3800 Oe in the former system, while the magnetic disk has a coercive force He of 2000 to 3500 Oe in the latter system. In both systems, signals are recorded by using a magnetic head using magnetic core members having a saturation magnetic flux density of 15 kG or greater. The magnetic core member having the saturation magnetic Flux density of 15 kG or greater is exemplified by a material expressed by a composition formula (Fe.sub.95.5 Al.sub.1 V.sub.0.5 Nb.sub.0.5 Cu.sub.0.5 Ru.sub.2).sub.92 N.sub.6 O.sub.2.

REFERENCES:
patent: 4769282 (1988-09-01), Tada
patent: 4801500 (1989-01-01), Yasunaga
patent: 5034286 (1991-07-01), Nasu
patent: 5057380 (1991-10-01), Hayashi
patent: 5192618 (1993-03-01), Frankel
patent: 5287237 (1994-02-01), Kitada
patent: 5302469 (1994-04-01), Sugenoya

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