US Patent Issued to JFE Steel on July 21 for "Gas-shielded arc welding method, welded joint, and method for producing welded joint" (Japanese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,070, issued on July 21, was assigned to JFE Steel Corp. (Tokyo).

"Gas-shielded arc welding method, welded joint, and method for producing welded joint" was invented by Atsushi Takada (Chiyoda-ku, Japan), Takahito Ito (Chiyoda-ku, Japan), Seiji Fujisawa (Chiyoda-ku, Japan) and Atsushi Ishigami (Chiyoda-ku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas-shielded arc welding method is disclosed and includes joining steel materials together by narrow-gap multilayer welding. A groove between the steel materials has an groove angle Theta of 20deg or less, and a root gap G (mm) that is a gap at a lower portion of the groove is 7 to 15 mm. Root ...