ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,659, issued on May 27, was assigned to Hitachi Ltd. (Tokyo).

"Wear-resistant member and mechanical device using same" was invented by Mitsuru Hasegawa (Tokyo), Tomonori Kimura (Tokyo) and Masafumi Noujima (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wear-resistant member contains a Cr-based alloy material. The Cr-based alloy material includes more than 40 mass % and 65 mass % or less of Cr, 15 mass % or more and 40 mass % or less of Ni, more than 0 mass % and 30 mass % or less of Fe, 5 mass % or more and 16 mass % or less of Nb, 0.1 mass % or more and 0.9 mass % or less of Ti, 0.6 mass % or more and 2.5 mass % or less of C, 2 mass % or le...