ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,053, issued on April 15, was assigned to JFE STEEL Corp. (Tokyo).
"Shearing die and press-forming method" was invented by Hiroto Miyake (Tokyo), Toyohisa Shinmiya (Tokyo) and Yuji Yamasaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shearing die for preventing damage of a die tool in shearing of a super-high-tension steel sheet and a press-forming method using the same. The shearing die for shearing a metal sheet in a direction intersecting a first-sheared edge of the metal sheet in press-working including a plurality of shearing processes to produce a formed article from the metal sheet by press-forming, in which the shearing die compris...