Magnetic disk and method of producing the same

Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media

Reexamination Certificate

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Reexamination Certificate

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07597973

ABSTRACT:
A magnetic disk includes a substrate on which a nonmagnetic metal layer, a magnetic layer, a carbon-based protection layer, an alcohol-based coupling layer, and a lubrication layer successively formed thereon. The lubrication layer contains a hydroxyl- or a carboxyl-modified compound as a lubricating material. The alcohol-based coupling layer contains, for example, lower alcohol as a main component and is deposited on the carbon-based protection layer, for example, by vapor deposition. The alcohol-based coupling layer may be replaced by a layer containing lower alcohol. The carbon-based protection layer may be deposited by plasma CVD.

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patent: 5637393 (1997-06-01), Ueda et al.
patent: 6096694 (2000-08-01), Tei et al.
patent: 6544893 (2003-04-01), Eto
patent: 6730403 (2004-05-01), Shirai et al.
patent: 1-184723 (1989-07-01), None
patent: 7-192255 (1995-07-01), None
patent: 7-249224 (1995-09-01), None
patent: 8-273154 (1996-10-01), None
patent: 2000-067428 (2000-03-01), None
patent: 2000235708 (2000-08-01), None
patent: 2001-266328 (2001-09-01), None
patent: 2002-032907 (2002-01-01), None
Machine translation of JP 07-249224, Sep. 1995.

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