Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1989-08-01
1992-01-14
Thibodeau, Paul J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
428694, 428695, 428900, G11B 2300
Patent
active
050809717
ABSTRACT:
In a magnetic recording medium wherein a metal thin film magnetic layer and an overcoat are formed on a nonmagnetic substrate, durability is improved when the overcoat comprises a plasma-polymerized film and a topcoat of an organic fluorine compound; a plasma-polymerized film, a protective carbon film, and a topcoat of an organic fluorine compound; a plasma-polymerized film containing C, F and H; or a plasma-polymerized organometallic film and a fluorine or silicon-containing topcoat. Oxidation of the upper surface of the magnetic layer with a plasma is also effective.
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Maruta Fumio
Nakayama Masatoshi
Shimozawa Toru
Ueda Kunihiro
Yokoyama Kenji
TDK Corporation
Thibodeau Paul J.
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