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US 4,542,071 AGranted
Lubricated magnetic recording disk
AssigneeInternational Business Machines Corporation
InventorsAndrew M. Homola, Heinrich Sussner
Life of this patent
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Abstract
A magnetic disk is lubricated by being overcoated first with a permanently bound monolayer of silica spheres about 7 nm in diameter and on top of said monolayer a skin-like film of amorphous silica about 2 to 13 nm thick.
Claims2
A magnetic recording disk characterized by a lubricant overcoat of a permanently bound monolayer of silica spheres about 7 nm in diameter, and on top of said monolayer a skin-like film of amorphous silica about 2 to 13 nm thick.
Dependencies are inferred from the claim text.