Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1992-04-24
1997-07-08
Kiliman, Leszek
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
428323, 428329, 428336, 4284735, 428694B, 428694BS, 428694BR, 428694BN, 428694BA, 428694BH, 428694BM, 428900, G11B 566
Patent
active
056459173
ABSTRACT:
A magnetic recording medium is disclosed comprising a non-magnetic support having provided thereon at least a lower non-magnetic layer comprising a binder having dispersed therein a non-magnetic powder and an upper magnetic layer comprising a binder having dispersed therein a ferromagnetic powder which has been coated on said lower non-magnetic layer while the lower non-magnetic layer is wet, wherein the upper magnetic layer has an average dry thickness (d) of not more than 1.0 .mu.m and an average thickness variation (.sup..DELTA. d) at the interface between the upper magnetic layer and lower non-magnetic layer is not more than d/2. The magnetic recording medium exhibits excellent electromagnetic characteristics, running properties, and durability.
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Ejiri Kiyomi
Hayakawa Satoru
Inaba Hiroo
Saito Shinji
Fuji Photo Film Co. , Ltd.
Kiliman Leszek
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