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Class Information
Number: 428/833.4
Name: Stock material or miscellaneous articles > Magnetic recording component or stock > Thin film media > Single magnetic layer with plural overcoat layers > Inorganic overcoat layer > Carbon overcoat (e.g., graphite, diamond like, doped carbon, etc.) > With lubricant over carbon layer > Plural lubricant layers over carbon layer
Description: Subject matter in which the medium has at least two distinct layers of lubricant over the carbon layer.

Patents under this class:

Patent Number Title Of Patent Date Issued
8338006 Magnetic recording disk having pre-patterned surface features and planarized surface Dec. 25, 2012
7998912 Composite lubricant for hard disk media Aug. 16, 2011
7510999 Lubricant composition for magnetic recording media Mar. 31, 2009
7440233 Magnetic recording medium and information reproducing apparatus Oct. 21, 2008
7277254 Magnetic recording disk and process for manufacture thereof Oct. 2, 2007
7252897 Magnetic recording disk and process for manufacture thereof Aug. 7, 2007
7208236 Magnetic recording medium with multi-portion carbon-based protection layer, and apparatus thereof Apr. 24, 2007
7060377 Lubricant film containing additives for advanced tribological performance of magnetic storage medium Jun. 13, 2006
6831802 Methods and apparatus for thermally bonding lubricant to a disk surface by the repetitive writing of data Dec. 14, 2004
6680112 Magnetic recording medium and production process thereof Jan. 20, 2004
6001479 Magnetic recording medium and method for manufacturing the same Dec. 14, 1999
5137784 Magnetic record medium with a magnetic layer coated with successive layers of carbon, organic amine, and fluoro lubricant Aug. 11, 1992

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