ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,750, issued on Oct. 27, was assigned to Honda Motor Co. Ltd. (Tokyo).
"Laser welding method" was invented by Jun Kitagawa (Saitama, Japan), Shimpei Takahara (Saitama, Japan), Koji Fukuoka (Saitama, Japan) and Mitsutaka Igaue (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The purpose is to smooth a surface of a molten portion, to suppress formation of a sharp edge and an undercut at an end of the molten portion and in the vicinity of the end. A laser welding method includes emitting a laser beam onto a surface of a stack of a plurality of workpieces, and moving the laser beam in a predetermined traveling direction, thereby welding the pluralit...