Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1983-12-16

1985-10-22

Rutledge, L. Dewayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Honeycomb, or with grain orientation or elongated elements...

428611, 428928, 428637, 428639, 428668, 428678, 360134, G11B 566

Patent

active

045488711

ABSTRACT:
A magnetic recording medium which comprises a magnetic layer formed on a substrate and comprising Co, or Co and one to three elements selected from the group consisting of Ni, Cr and O, said magnetic layer comprising sequentially from the substrate side, a first portion composed of crystal particles which are not inclined relative to the normal line of the principal plane of the substrate, a second portion composed of columnar crystal particles which are inclined relative to the normal line of the principal plane of the substrate, and a third portion composed of crystal particles which are not inclined relative to the normal line of the principal plane of the substrate.

REFERENCES:
patent: 4172171 (1979-10-01), Suzuki et al.
patent: 4323629 (1982-04-01), Kunieda et al.
patent: 4371590 (1983-02-01), Izumi et al.
patent: 4385098 (1983-05-01), Sugita et al.
patent: 4387136 (1983-06-01), Saito et al.
patent: 4409281 (1983-10-01), Kitamoto et al.
patent: 4410583 (1983-10-01), Hanaoka
patent: 4418126 (1983-11-01), Izumi et al.

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