Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1985-10-04
1988-03-29
Thibodeau, Paul J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
427131, 428329, 428694, 428695, 428900, G11B 570
Patent
active
047343257
ABSTRACT:
A magnetic recording medium comprising a non-magnetic support having provided thereon a magnetic layer being provided on one surface of the support and a backing layer being provided on the surface of the support opposite to said magnetic layer, the backing layer contains binder and non-magnetic particles comprised of (i) corbon black having an average particle size of 0.1 to 1.0 .mu.m and (ii) particles of abrasives having a Mohs' hardness of at least 6 and an average particle size of 1 .mu.m or less, with the non-magnetic particles in said backing layer being used in an amount of 40 to 300 parts by weight per 100 parts by weight of binder.
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patent: 4451531 (1984-05-01), Isobe et al.
patent: 4551386 (1985-11-01), Yamaguchi et al.
patent: 4582757 (1986-04-01), Miyoshi et al.
patent: 4592952 (1986-06-01), Miyoshi et al.
Hanai Kazuko
Kosha Hideaki
Ryoke Katsumi
Tadokoro Eiichi
Takahashi Masatoshi
Fuji Photo Film Co. , Ltd.
Thibodeau Paul J.
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