ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,368, issued on Oct. 6, was assigned to AMADA Co. LTD. (Kanagawa, Japan) and AMADA WELD TECH Co. LTD. (Kanagawa, Japan).

"Laser welding monitoring device and laser welding monitoring method" was invented by Atsushi Yanase (Kanagawa, Japan) and Yusuke Nishizaki (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "When a material to be welded is irradiated with a laser beam emitted by a processing head, a beam receiving units receive a radiated beam including a reflected beam of the laser beam and a monitoring beam that is caused by thermal radiation and is a beam having a wavelength different from that of the reflected beam. A spectrometer u...