ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,532, issued on May 26, was assigned to Gigaphoton Inc. (Tochigi, Japan).
"Pulse stretcher and electronic device manufacturing method" was invented by Yousuke Fujimaki (Oyama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pulse stretcher includes a beam splitter splitting pulse laser light into two beams of pulse laser light, first concave mirrors arranged side by side in a predetermined direction, and second concave mirrors arranged side by side in the predetermined direction as having the same number as the first concave mirrors and facing the first concave mirrors, respectively. One beam of pulse laser light split by the beam splitter trav...