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:
Jul. 05, 2011
Filed:
Dec. 09, 2005
Yoshio Okada, Itami, JP;
Naoya Omori, Itami, JP;
Minoru Itoh, Itami, JP;
Norihiro Takanashi, Itami, JP;
Shinya Imamura, Itami, JP;
Susumu Okuno, Itami, JP;
Yoshio Okada, Itami, JP;
Naoya Omori, Itami, JP;
Minoru Itoh, Itami, JP;
Norihiro Takanashi, Itami, JP;
Shinya Imamura, Itami, JP;
Susumu Okuno, Itami, JP;
Sumitomo Electric Hardmetal Corp., Hyogo, JP;
Abstract
The present invention relates to a coated cutting tool () including a substrate () and a coating () formed on the substrate (), wherein the coating () includes a first coating () composed of TiCN and a second coating () composed of α-AlO, the first coating () is positioned between the substrate () and the second coating () and has tensile stress S, the second coating () has compressive stress S, and the tensile stress Sand the compressive stress Sare defined by the following equation (I):400 MPa≦|21|≦3500 MPa  (I).