Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1985-04-04

1986-11-25

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

360134, 360135, 360136, 427128, 427131, 428329, 428522, 428694, 4284259, 428900, G11B 570

Patent

active

046248943

ABSTRACT:
In a magnetic recording medium, double magnetic layers are formed on one side of a substrate with a lower magnetic layer containing metallic magnetic particles formed on the substrate and an upper magnetic layer containing plate-shaped ferrite magnetic particles of the hexagonal structure with the magnetization axis oriented in a direction vertical to the surface of the upper magnetic layer formed on the lower magnetic layer for enabling high output level recording over a wide wave length range.

REFERENCES:
patent: 4135016 (1979-01-01), Ogawa
patent: 4442159 (1984-04-01), Dezawa
patent: 4511617 (1985-04-01), Hideyama

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