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:
May. 18, 2021
Filed:
Aug. 28, 2019
Tungaloy Corporation, Fukushima, JP;
Naoyuki Fukushima, Iwaki, JP;
TUNGALOY CORPORATION, Iwaki, JP;
Abstract
A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein: the coating layer comprises a lower layer, an intermediate layer and an upper layer, the lower layer, the intermediate layer and the upper layer being laminated in order from the substrate side toward a surface side of the coating layer; the lower layer comprises a Ti compound layer; the intermediate layer contains α-AlO; the upper layer contains TiCN; an average thickness of each of the lower layer, the intermediate layer, and the upper layer is within a specific range; a ratio of a length of Σ3 grain boundaries to a total 100% length of all grain boundaries in a specific region of the upper layer is from 20% or more to 60% or less; and a ratio of (111)-oriented grains in the upper layer is 30 area % or more.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile