Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1982-12-27

1987-06-23

Lesmes, George F.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428213, 428409, 428457, 4284735, 428694, 428702, 428900, G11B 562

Patent

active

046752242

ABSTRACT:
The magnetic recording medium includes a soft magnetic thin film layer of high magnetic permeability formed on a substrate, a non-magnetic thin film layer formed on the soft magnetic layer and a magnetic thin film for recording information thereon formed on the non-magnetic thin film layer. The film thickness of the non-magnetic thin film layer is equal to or less than that of the magnetic thin film layer for recording. And the non-magnetic thin film layer is an amorphous or macromolecular substance upon which the crystalline structure of the recording thin film layer forms with a perpendicular orientation favorable for magnetization.

REFERENCES:
patent: 4210946 (1980-07-01), Iwasaki et al.

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