Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2005-09-27
2005-09-27
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S690000, C428S690000
Reexamination Certificate
active
06949301
ABSTRACT:
This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic film on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective coating mainly composed of carbon for protecting the magnetic film exceeds 20%. The bonding force between the protective coating layer and the lubricating layer of the magnetic recording medium is increased so that under high speed rotation, a decrease in the lubricating layer is not caused so as to provide a magnetic recording apparatus having high reliability.
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Fujimaki Shigehiko
Honda Yoshinori
Kokaku Yuuichi
Ono Toshinori
Yatsue Tooru
Bernatz Kevin M.
Hitachi Global Storage Technologies Japan Ltd.
Kenyon & Kenyon
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