ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,595, issued on April 7, was assigned to Resonac Corp. (Tokyo).

"Aluminum alloy ingot and method for producing same" was invented by Yuto Tomita (Tokyo) and Yoshifumi Kimura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aluminum alloy ingot contains Cu: 0.15 mass % or more and 1.0 mass % or less, Mg: 0.6 mass % or more and 1.2 mass % or less, Si: 0.95 mass % or more and 1.35 mass % or less, Mn: 0.4 mass % or more and 0.6 mass % or less, Fe: 0.15 mass % or more and 0.70 mass % or less, Cr: 0.09 mass % or more and 0.25 mass % or less, and Ti: 0.012 mass % or more and 0.035 mass % or less, with the remainder being made up of Al and unavoidabl...