Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yoshihiro Wada0
Yozo Nakamura0
Yukio Kodama0
Katsuyasu Hananaka0
Toyoaki Yasui0
Toshirou Kobayashi0
Masanobu Misaki0
Date of Patent
June 5, 2007
0Patent Application Number
108668690
Date Filed
June 15, 2004
0Patent Primary Examiner
Patent 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 at 1000° C. or higher and also having very high wear resistance.
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