ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,268, issued on July 15, was assigned to NIPPON STEEL Corp. (Tokyo) and JTEKT Corp. (Osaka, Japan).
"Carbonitrided bearing component" was invented by Yutaka Neishi (Tokyo), Tomohiro Yamashita (Tokyo), Daisuke Hirakami (Tokyo), Takahisa Suzuki (Tokyo), Tatsuya Koyama (Tokyo), Takashi Sada (Kashiwara, Japan) and Kohei Kanetani (Kashiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A core portion of the carbonitrided bearing component includes a chemical composition consisting of, in mass %, C: 0.15 to 0.45%, Si: 0.50% or less, Mn: 0.20 to 0.60%, P: 0.015% or less, S: 0.005% or less, Cr 0.80 to 1.50%, Mo: 0.17 to 0.30%, V: 0.24 to 0.40%, Al: 0.0...