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:
Apr. 12, 2011
Filed:
May. 23, 2008
Akihiko Shibata, Itami, JP;
Haruyo Fukui, Itami, JP;
Shinya Imamura, Itami, JP;
Akira Kobayashi, Mie, JP;
Akihiko Shibata, Itami, JP;
Haruyo Fukui, Itami, JP;
Shinya Imamura, Itami, JP;
Akira Kobayashi, Mie, JP;
Sumitomo Electric Hardmetal Corp., Hyogo, JP;
Abstract
A surface-coated cutting tool according to the present invention including a substrate and a coating film formed on the substrate is characterized in that the coating film includes a composite super multi-layer film obtained by alternately stacking one or more first super multi-layer film and one or more second super multi-layer film, the first super multi-layer film above is formed by alternately stacking one or more A1 layer and one or more B layer, the second super multi-layer film above is formed by alternately stacking one or more A2 layer and one or more C layer, each of the A1 layer above and the A2 layer above is composed of any of TiN, TiCN, TiAlN, and TiAlCN, the B layer above is composed of TiSiN or TiSiCN, and the C layer above is composed of AlCrN or AlCrCN.