Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1982-05-26
1984-04-10
Robinson, Ellis P.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
252 6254, 360134, 360135, 360136, 427128, 427131, 428328, 428329, 428336, 428694, 428900, G11B 568, G11B 570
Patent
active
044421591
ABSTRACT:
A magnetic recording medium which comprises a non-magnetic support having thereon two or more magnetic layers comprising magnetic particles in a binder. The magnetic layer(s) other than the topmost layer comprises needle-shaped magnetic particles. The topmost layer comprises plate-shaped magnetic particles which have axes of easy magnetization perpendicular to the individual plate planes and the plate planes are oriented substantially parallel to the surface of the magnetic layer.
REFERENCES:
patent: 3023166 (1962-02-01), Duinker
patent: 3185775 (1965-05-01), Camras
patent: 4135016 (1979-01-01), Ogawa
Akashi Goro
Dezawa Shin-Ichiro
Kitamoto Tatsuji
Fuji Photo Film Co. , Ltd.
Robinson Ellis P.
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