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:
Jan. 17, 2012
Filed:
Dec. 26, 2006
Naoya Omori, Itami, JP;
Yoshio Okada, Itami, JP;
Minoru Itoh, Itami, JP;
Susumu Okuno, Itami, JP;
Shinya Imamura, Itami, JP;
Naoya Omori, Itami, JP;
Yoshio Okada, Itami, JP;
Minoru Itoh, Itami, JP;
Susumu Okuno, Itami, JP;
Shinya Imamura, Itami, JP;
Sumitomo Electric Hardmetal Corp., Hyogo, JP;
Abstract
An indexable cutting insert () includes a base () and a coating layer, wherein the coating layer includes an inner sublayer and an outer sublayer, each of subsublayer constituting the inner sublayer is composed of a compound containing at least one element selected from the group consisting of Group IVa elements, Group Va elements, Group VIa elements in the periodic table, Al, and Si, the outer sublayer is an alumina sublayer or a sublayer containing aluminum, and in portions of the outer sublayer participating in cutting, when an average thickness on the flank face (3) side is represented by A μm and an average thickness on the rake face (2) side is represented by B μm, A/B≦0.95.