ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,377,470, issued on Aug. 5, was assigned to TUNGALOY Corp. (Fukushima, Japan).
"Coated cutting tool" was invented by Takaaki Nakamura (Iwaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The coated cutting tool comprises a substrate and a coating layer formed on a surface of the substrate, the coating layer comprises an alternating laminate structure in which two or more first layers and two or more second layers are alternately laminated, the first layer is a compound layer containing Ti(CaN1-a), the second layer is a compound layer containing (TixAl1-x)(CyN1-y), an average thickness per layer of each of the first layers and the second layers in ...