MAGNETIC DISK DEVICE

PROBLEM TO BE SOLVED: To provide a magnetic disk device having a small reduction in the lubricant film thickness on a magnetic disk surface, and high sliding reliability between a magnetic head and the magnetic disk surface. SOLUTION: By adhering perfluoropolyether to the surface of a suspension, or...

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Bibliographic Details
Main Authors NAKAKAWAJI TAKAYUKI, ITO YUTAKA, MATSUMOTO HIROYUKI, ISHIDA MINA, TANI KOUJI
Format Patent
LanguageEnglish
Published 22.03.2002
Edition7
Subjects
CHEMISTRY
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
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
PHYSICS
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Summary:PROBLEM TO BE SOLVED: To provide a magnetic disk device having a small reduction in the lubricant film thickness on a magnetic disk surface, and high sliding reliability between a magnetic head and the magnetic disk surface. SOLUTION: By adhering perfluoropolyether to the surface of a suspension, or impregnating a filter with perfluoropolyether, the perfluoropolyether is supplied to the surface of a magnetic disk by using heat and an air flow in the magnetic disk device. The perfluoropolyether contains a component having a molecular weight of <=4,000 by >=40%.
Bibliography:Application Number: JP20010185753