Method of producing a lubricant for a magnetic disk, lubricant for a magnetic disk, magnetic disk, and method of producing a magnetic disk
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United States of America Patent
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May 12, 2009
Grant Date -
Mar 30, 2006
app pub date -
Sep 26, 2005
filing date -
Sep 27, 2004
priority date (Note) -
Expired
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Abstract
On producing a lubricant which is used in making a lubrication layer included in a magnetic disk from the lubricant, a phosphorus-containing compound is removed from a raw-material lubricant including the phosphorus-containing compound to produce the lubricant. The magnetic disk includes a substrate on which at least a magnetic layer, a protection layer, and the lubrication layer formed by the use of the lubricant are successively formed.
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