US Patent Issued to NIPPON STEEL on Oct. 28 for "Method for producing grain oriented electrical steel sheet" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,745, issued on Oct. 28, was assigned to NIPPON STEEL Corp. (Tokyo).

"Method for producing grain oriented electrical steel sheet" was invented by Shinsuke Takatani (Tokyo) and Yoshiyuki Ushigami (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a grain oriented electrical steel sheet includes a decarburization annealing process where an oxidation degree PH2O/PH2 is controlled, a final annealing process where hydrogen in mixed gas atmosphere is controlled to 50 volume % or more, an annealing separator removing process where water-washing is conducted using solution with inhibitor, a smoothing process where mixed gas and temp...