The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2008
Filed:
May. 07, 2007
Masanobu Misaki, Shiga-ken, JP;
Yukio Kodama, Shiga-ken, JP;
Yozo Nakamura, Shiga-ken, JP;
Yoshihiro Wada, Shiga-ken, JP;
Toyoaki Yasui, Hiroshima-ken, JP;
Toshirou Kobayashi, Hiroshima-ken, JP;
Katsuyasu Hananaka, Hiroshima-ken, JP;
Masanobu Misaki, Shiga-ken, JP;
Yukio Kodama, Shiga-ken, JP;
Yozo Nakamura, Shiga-ken, JP;
Yoshihiro Wada, Shiga-ken, JP;
Toyoaki Yasui, Hiroshima-ken, JP;
Toshirou Kobayashi, Hiroshima-ken, JP;
Katsuyasu Hananaka, Hiroshima-ken, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
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.