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:
Feb. 22, 2022
Filed:
Apr. 16, 2020
Tungaloy Corporation, Fukushima, JP;
Kinya Takahashi, Iwaki, 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 includes a predetermined lower layer, an intermediate layer comprising α-AlO, and an upper layer comprising TiCN; the lower layer, intermediate layer, and upper layer have predetermined average thicknesses; a condition represented by formula (1) [RSA≥40 (1)] is satisfied; the interface of the intermediate layer on the upper layer side has a kurtosis roughness (S) of more than 3.0; the interface of the intermediate layer on the upper layer side has a skewness roughness (S) of less than 0; and a condition represented by formula (2) [RSB≥40 (2)] is satisfied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile