US Patent Issued to JFE STEEL on March 17 for "Slag component analysis method, slag basicity analysis method, and molten iron refining method" (Japanese Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,277, issued on March 17, was assigned to JFE STEEL Corp. (Tokyo).

"Slag component analysis method, slag basicity analysis method, and molten iron refining method" was invented by Masao Inose (Tokyo) and Seiya Sugawara (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a slag component analysis method capable of quickly and accurately measuring slag components generated during refining of molten iron. The method comprises: irradiating a surface of slag to be analyzed with a pulse laser a plurality of times to turn part of the slag into plasma; dispersing excitation light obtained from the slag turned into plasma and acquiring an emiss...