MAGNETIC DISK MEDIUM

PROBLEM TO BE SOLVED: To secure the reliability of a magnetic disk medium having a carbon protective film, and to provide the magnetic disk medium preventing the generation of flocculation after coating a lubricative film. SOLUTION: A lubricative film including the chemical formulas (1) and (2) is a...

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Bibliographische Detailangaben
Hauptverfasser:	SHODA MITSUHIRO, MATSUMOTO HIROYUKI, TANI KOUJI, SONODA KOJI, OZAKI MICHINORI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LUBRICANTS LUBRICATING COMPOSITIONS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES PHYSICS TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To secure the reliability of a magnetic disk medium having a carbon protective film, and to provide the magnetic disk medium preventing the generation of flocculation after coating a lubricative film. SOLUTION: A lubricative film including the chemical formulas (1) and (2) is applied on the protective film having the main component of carbon. The concentration of N3 P3 (O-C6 H4 -CH3 )X (where X=1-5) on the surface of the lubricative film is measured to specify the concentration at a prescribe value.