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:
Oct. 30, 2018
Filed:
Nov. 26, 2014
Kyocera Corporation, Kyoto-shi, Kyoto, JP;
Hayato Kubo, Satsumasendai, JP;
Kou Ri, Satsumasendai, JP;
KYOCERA CORPORATION, Kyoto, JP;
Abstract
A cutting tool includes: a base including cemented carbide containing Cr; and a coating layer including a Ti-based layer including at least a layer of Ti(CNO) (0≤x1≤1, 0≤y1≤1, 0≤z1≤1, x1+y1+z1=1), an AlOlayer, and an outermost layer of Ti(CNO) (0≤x3≤1, 0≤y3≤1, 0≤z3≤1, x3+y3+z3=1), and a content of Cr contained at a first Ti-based layer of the Ti-based layer is lower than a content of Cr contained in the base, and higher than a content of Cr contained at the AlOlayer, and a content of Cr contained at the outermost layer is higher than the content of Cr contained at the AlOlayer in a glow-discharge emission spectrometry.