ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,536, issued on Oct. 21, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).
"Cutting tool" was invented by Nozomi Tsukihara (Osaka, Japan) and Haruyo Fukui (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cutting tool, comprising a substrate and a coating disposed on the substrate,wherein the coating comprises a first layer,the first layer is composed of AlaTibCr(1-a-b-c-d)SicAgdN, andthe a, the b, the c, and the d satisfy 0.50less than equal toaless than equal to0.75, 0.10less than equal tobless than equal to0.25, 0.005less than equal tocless than equal to0.20, 0.005less than equal todgreater than0.10, and a+b+c+dgreater...