ALEXANDRIA, Va., July 9 -- United States Patent no. 12,354,778, issued on July 8, was assigned to JFE Steel Corp. (Tokyo).
"Grain-oriented electrical steel sheet and method for producing same" was invented by Makoto Watanabe (Tokyo), Masahiro Suemune (Tokyo) and Takeshi Imamura (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a production of a grain-oriented electrical steel sheet comprising hot rolling a raw steel material, cold rolling, decarburization annealing, applying an annealing separator composed mainly of MgO, finish annealing and magnetic domain subdividing, the annealing separator including certain compounds, and the finish annealing conducted by holding the steel sheet at a temperature o...