ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,631, issued on April 7, was assigned to Honda Motor Co. Ltd. (Tokyo).
"Laser machining method" was invented by Takashi Kobayashi (Tochigi, Japan), Naruhiko Okubo (Tochigi, Japan), Kenichi Fukami (Tochigi, Japan) and Seiichi Kouketsu (Tochigi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a laser machining method with which strain occurring in a workpiece can be reduced even when a large number of through-holes are formed. The laser machining method includes: a gas supply step (S3) of making a gas pressure on the back surface side of a workpiece 1 higher than a gas pressure on the front surface side of the workpiece 1; a deep hole ...