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US 2002/0160106 A1Published application
Method for manufacturing a magnetic recording medium
AssigneeFuji Electric Co., Ltd.
InventorMakoto Isozaki
Life of this patent
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Abstract
A lubricating layer is applied to the surface of a thin protective layer on a magnetic recording medium. The surface of the protective layer is burnished to reduce protuberances. The lubricating layer is removed by solvent washing. Then, a replacement lubricating layer is deposited on the surface of the protective layer. The resulting surface of the magnetic recording medium exhibits reduced scratching and particle contamination.
Claims9
A method for manufacturing a magnetic recording medium comprising steps of:
- depositing a non-magnetic metallic under-layer on a substrate;
- depositing a magnetic layer on said under-layer;
- depositing a protective layer on said magnetic layer;
- depositing a lubricating agent on said protective layer;
- burnishing a surface of said magnetic recording medium;
- washing said lubricating agent away using a solvent;
- and
- depositing a liquid lubricant layer on said protective layer.
5 more elements
A method for burnishing a surface of a magnetic recording medium comprising:
- depositing a first lubricating layer on said surface;
- said first lubricating layer being of a type omitting a functional end group;
- burnishing said surface;
- solvent washing said surface to remove said first lubricating layer;
- depositing a second lubricating layer on said surface;
- and
- said second lubricating layer being of a type having a functional end group.
4 more elements
Dependencies are inferred from the claim text.