Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-05-07
2008-11-11
Turner, Archene (Department: 1794)
Stock material or miscellaneous articles
Composite
Of inorganic material
C051S307000, C051S309000, C407S119000, C428S336000, C428S697000, C428S699000
Reexamination Certificate
active
07449253
ABSTRACT:
A high wear resistant hard film is characterized by including a coating layer consisting of a metal nitride, which is formed on the outside surface of an object to be treated; a substrate layer consisting of a nitride of Ti or Cr, which is provided between the coating layer and the object to be treated; and an intermediate layer containing compositions of the coating layer in contact with the intermediate layer and the substrate layer, which is provided at an interface between the coating layer and the substrate layer, and a tool is provided with the film. There is provided a hard film having excellent oxidation resistance even 1000° C. or higher and also having very high wear resistance.
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Hananaka Katsuyasu
Kobayashi Toshirou
Kodama Yukio
Misaki Masanobu
Nakamura Yozo
Birch & Stewart Kolasch & Birch, LLP
Mitsubishi Heavy Industries Ltd.
Turner Archene
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