ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,200, issued on May 20, was assigned to Ushio Denki K.K. (Tokyo).

"Light source apparatus" was invented by Yusuke Teramoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light source apparatus includes a beam introduction section, a plate member, a raw material supply section, and a radiation extraction section. The beam introduction section introduces an energy beam. The plate member has a front surface and a back surface, is disposed at a location where the introduced energy beam is incident onto the front surface, and is rotatable around a direction orthogonal to the front surface as its rotation axis direction. The raw material supply se...