US Patent Issued to NIPPON STEEL on June 10 for "Method for producing grain oriented electrical steel sheet" (Japanese Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,891, issued on June 10, 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, an annealing separator applying process where a mass ratio of MgO and Al2O3 in an annealing separator is controlled, a final annealing process where hydrogen in mixed gas atmosphere is controlled to 50 volume % or more, an annealing separator removing...