Stock material or miscellaneous articles – Self-sustaining carbon mass or layer with impregnant or...
Patent
1996-10-01
2000-10-17
Resan, Stevan A.
Stock material or miscellaneous articles
Self-sustaining carbon mass or layer with impregnant or...
428694TC, 428694TF, 428900, 360103, 360122, G11B 0572
Patent
active
061328758
ABSTRACT:
In a magnetic recording medium wherein a magnetic recording layer for storing information, a carbon type protective layer for preventing damage of the magnetic recording layer and a lubrication layer are sequentially formed on a non-magnetic substrate, the carbon protective layer has a relatively smaller hydrogen content on the side nearer the lubrication layer than on the side nearer the magnetic recording layer. In a magnetic head slider having an electromagnetic conversion device mounted thereto, a carbon protective layer is laminated on at least a sliding surface side, and a lubrication layer is disposed on the carbon type protective layer. In a recording apparatus including a recording medium for storing information and a magnetic head for recording or reproducing information to and from the memory medium, a carbon protective film having a lower hydrogen content at an upper, surface portion thereof than at a lower, initial portion thereof is formed on either the recording medium or a sliding portion of the magnetic head.
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Saperstein et al "Improved Adhesion and Coverage of Perflurs-Polymer Lubricants Following Far-UV Irrodiation" Laugnuir, 6, 1522-1524 (1990).
Ishikawa et al "Dual-Carbon A New Surfacce Protective Film For Thin Film Hard Disks" IEEE Trans On Magnetics vol. Mag 22#5, Sep. 1986.
Kikuchi Akira
Kitamoto Yoshito
Kiuchi Katsumi
Takagi Masahiro
Watanabe Makoto
Fujitsu Limited
Resan Stevan A.
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