Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1989-09-26
1992-09-15
Thibodeau, Paul J.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428694, 428900, 428928, G11B 2300
Patent
active
051477327
ABSTRACT:
Disclosed are longitudinal recording media comprising a composite magnetic film formed on a nonmagnetic substrate directly or through a nonmagnetic underlayer, in which all of magnetic thin films constituting the composite magnetic film are magnetically connected, the composite magnetic film has a single in-plane coercivity, and the in-plane coercivity is greater than the in-plane coercivity of a longitudinal magnetically anisotropic magnetic thin film constituting a magnetic thin film nearest to an information recording side among the magnetic thin films constituting the composite film.
REFERENCES:
patent: 4645722 (1987-02-01), Katayama et al.
patent: 4745510 (1988-05-01), Watanabe et al.
patent: 4900622 (1990-02-01), Nakayama et al.
Hishiyama Sadao
Kumasaka Noriyuki
Matsuda Yoshibumi
Ohno Tomoyuki
Ohura Masaki
Hitachi , Ltd.
Kiliman Leszek
Thibodeau Paul J.
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