ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,389, issued on March 11, was assigned to Neturen Co. Ltd. (Tokyo).
"Steel joined body and method for manufacturing the same" was invented by Takuya Suzuki (Tokyo), Masahiro Tsukahara (Tokyo), Osamu Idohara (Tokyo) and Setsuo Takaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a steel joined body having a plurality of steels joined together, the method comprising: disposing a carbonaceous material on at least one joining surface of steels to be joined together; overlapping joining surfaces of the steels to be joined together having the carbonaceous material interposed between the joining surfaces; and heating the ...