US Patent Issued to NIPPON STEEL STAINLESS STEEL on June 30 for "Austenite stainless steel material, method for producing same, and designed articles" (Japanese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,861, issued on June 30, was assigned to NIPPON STEEL STAINLESS STEEL Corp. (Tokyo).

"Austenite stainless steel material, method for producing same, and designed articles" was invented by Seiichi Isozaki (Tokyo), Yasushi Nishimura (Tokyo) and Naoki Hirakawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An austenite stainless steel material includes, on a mass basis, 0.024% or less of C, 1.00% or less of Si, 2.00% or less of Mn, 0.045% or less of P, 0.015% or less of S, 10.0 to 15.0% of Ni, 15.0 to 22.0% of Cr, 2.0 to 4.0% of Mo, 0.01 to 0.15% of N, 0.001 to 0.010% of B, 0.05 to 1.00% of Co, 0.01 to 0.30% of V, 0.01 to 0.30% of W, the balance ...