Stock material or miscellaneous articles – Composite – Of metal
Reexamination Certificate
2006-03-15
2009-02-03
Turner, Archene (Department: 1794)
Stock material or miscellaneous articles
Composite
Of metal
C204S192110, C204S192150, C204S192160, C204S298040, C204S298050, C428S216000, C428S336000, C428S469000, C428S697000, C428S698000, C428S699000, C428S704000
Reexamination Certificate
active
07485372
ABSTRACT:
It is an object of the present invention to provide a multi-layer coating having excellent adhesion and sliding properties, which contains a hard layer having a main component of a nitride and/or carbonitride containing one or more elements selected from the group consisting of Ti, V, Zr, Cr, Nb, Si, Al and B and a lubricating layer consisting of a metal element and molybdenum disulfide on the hard layer wherein the lubricating layer has a graded composition in which the metal element has a decreasing content from the hard layer side towards the surface and the molybdenum disulfide has an increasing content, and wherein the lubricating layer has a maximum oxygen concentration of no greater than 25 atom %.
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Inoue Ken
Inoue Ken-ichi
Hitachi Metals Ltd.
Sughrue & Mion, PLLC
Turner Archene
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