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:
Jun. 08, 2021
Filed:
Oct. 25, 2016
Osg Corporation, Toyokawa, JP;
Masatoshi Sakurai, Toyokawa, JP;
Mei Wang, Toyokawa, JP;
OSG CORPORATION, Toyokawa, JP;
Abstract
A hard film for coating a surface of a base material, the hard film includes a layer A, a layer B, and a nanolayer-alternating layer. The layer A is an AlTiCr nitride of (AlTiCrα)N, where α is one or more elements selected from C, B, Si, V, Y, Zr, Nb, Mo, Hf, Ta, and W. The layer B is an AlTiCr nitride or AlTiCr carbonitride of (AlTiCrβ)CN, where β is one or more elements selected from B, Si, V, Y, Zr, Nb, Mo, Hf, Ta, and W. The nanolayer-alternating layer is formed by alternately laminating a nanolayer A or a nanolayer B having the same composition as the layer A or B. And, the layer C is an AlCr(SiC) nitride or AlCr(SiC) carbonitride of [AlCr(SiC)γ]CN, where γ is one or more elements selected from B, Ti, V, Y, Zr, Nb, Mo, Hf, Ta, and W.