Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1982-03-09

1984-04-10

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

252 6254, 360134, 360135, 360136, 427128, 428161, 428332, 428694, 428695, 428900, G11B 570

Patent

active

044421710

ABSTRACT:
A magnetic recording medium comprising a nonmagnetic flexible substrate, a magnetic layer provided on the surface of the substrate and containing ferromagnetic grains dispersed in a binder, and a back layer provided on the back surface of the substrate. The magnetic recording medium has a stiffness (S.sub.TD) of 6.0 or less. The friction coefficient (.mu..sub.B) of the back layer surface with respect to the axial direction of a loading post in a video tape recorder is controlled to satisfy the condition:

REFERENCES:
patent: 3515569 (1970-06-01), Walters et al.
patent: 4071654 (1978-01-01), Ogama et al.
patent: 4135032 (1979-01-01), Akashi
patent: 4153920 (1979-05-01), Shirahata
patent: 4175145 (1979-11-01), Fechter
patent: 4318957 (1952-03-01), Videc
patent: 4328935 (1982-05-01), Steel

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