ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,465, issued on March 17, was assigned to KOBE STEEL LTD. (Kobe, Japan).
"Flux-cored wire" was invented by Shinya Isono (Fujisawa, Japan) and Hideaki Takauchi (Fujisawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A flux-cored wire for gas-shielded arc welding in which a steel sheath is filled with flux and the flux-cored wire contains Fe, C, Mn, Cr, Ni, Mo, Nb, V, P, and S within controlled amounts, and further contains, with respect to the total mass of the wire, TiO2: 3.0 mass % or more and 9.0 mass % or less, a SiO2 conversion value of metal Si and a Si compound: 0.5 mass % or more and 1.5 mass % or less, Co: 0.10 mass % or more and 1.5...