ALEXANDRIA, Va., May 5 -- United States Patent no. 12,620,677, issued on May 5, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Manufacturing method for welded structure, and battery" was invented by Seiko Kubota (Toyota, Japan), Akio Sato (Toyota, Japan) and Seigo Fujishima (Miyoshi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A manufacturing method for a welded structure includes preparing a stack in which a plate-shaped first welded member made of a first metal and a plate-shaped second welded member made of a second metal are stacked, and applying a laser beam to the first welded member such that multiple loop weld marks with the same central axis are provided. In applying the laser beam, ...