Slidably movable member and method of producing same
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United States of America Patent
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-
Sep 25, 2007
Grant Date -
Jun 2, 2005
app pub date -
Jan 12, 2005
filing date -
Apr 9, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A slidably movable member such as an adjusting shim used in a valve operating mechanism of an internal combustion engine of an automotive vehicle. The slidably movable member is used in contact with lubricating oil and comprises a substrate. A hard carbon-based film is coated on a surface of the substrate. The hard carbon-based film has a surface section which contains at least one of nitrogen and oxygen in an amount ranging from 0.5 to 30 at % and/or hydrogen in an amount of not more than 10 at %.
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