ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,561, issued on Dec. 2, was assigned to SEAVAC INC..
"Hard coating" was invented by Yuta Ikeda (Amagasaki, Japan), Yoshinobu Yano (Amagasaki, Japan), Tomoko Amano (Amagasaki, Japan), Rabie Benioub (Amagasaki, Japan) and Shinichiro Sato (Amagasaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hard coating is provided that comprises a lower layer having a composition composed of (Ti, Al)N or (Ti, Al, Mo)N, an intermediate layer formed on the lower layer, and an upper layer formed on the intermediate layer and having a composition composed of (Al, Ti, Cr, M)N. The M represents one or more elements selected from Mo, V, and Y. The intermediate la...