Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1984-04-25

1986-07-08

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of inorganic material

360134, 360135, 360136, 427132, 427128, 428900, 204192M, G11B 564

Patent

active

045992800

ABSTRACT:
In a magnetic recording medium comprising a length of a non-magnetic plastic substrate and a magnetic thin layer of Co or Co-Ni or Co-Ni-Cr formed thereon, when the coercive force of the medium is measured by changing the measuring direction in a plane defined by a longitudinal direction of the substrate and a direction normal to the major surface of the substrate, the following relationship is met:

REFERENCES:
patent: 4323629 (1982-04-01), Kunieda
patent: 4387136 (1983-06-01), Saito
patent: 4407894 (1983-10-01), Kadokura
patent: 4418126 (1983-11-01), Izumi
patent: 4429016 (1984-01-01), Sugita
patent: 4454195 (1984-06-01), Fukuda
Journal of Applied Physics, 36, No. 3, pp. 972-974 (1965).
The Fourth International Conference on Video and Data Recording IERE Conference Proceedings, No. 54.
Yasuo Iijima, Masatoshi Takao, and Akio Tomago, "Magnetic Properties of Evaporated Ferromagnetic Thin Films", Oct. 24, 1978, vol. 78, No. 151.

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