ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,555, issued on Oct. 21, was assigned to CANON K.K. (Tokyo).
"Processing apparatus and article manufacturing method" was invented by Saori Hasegawa (Tochigi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In order to make a processing beam close to a circular shape, in a processing apparatus including an optical device that guides a laser beam emitted from a light source to a target object and processing the target object with light emitted from the optical device, the optical device includes a correction mechanism that corrects rotationally asymmetric optical characteristics of the optical device, the correction mechanism includes at least two...