ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,729, issued on May 26, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).
"Welding condition evaluation method" was invented by Kenta Kubota (Osaka, Japan), Michio Sakurai (Osaka, Japan), Toshiyuki Mishima (Osaka, Japan) and Toru Sakai (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Point group data obtained by measuring the penetration depth of a keyhole 66 during laser welding is divided into a plurality of regions in the depth direction of measured values, and evaluation data showing a change in number of points with time is acquired for each of the plurality of regions. An average variation in number of poin...