US Patent Issued to SCREEN Holdings on April 22 for "Light irradiation type heat treatment apparatus" (Japanese Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,498, issued on April 22, was assigned to SCREEN Holdings Co. Ltd. (Kyoto, Japan).

"Light irradiation type heat treatment apparatus" was invented by Akitsugu Ueda (Kyoto, Japan), Hiroshi Miyake (Kyoto, Japan), Kazuhiko Fuse (Kyoto, Japan) and Hideaki Tanimura (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light diffusion plate is placed on an upper surface of an upper chamber window. A blasting process is applied to a lower surface of the light diffusion plate to provide the lower surface in the form of frosted glass. When the light diffusion plate is placed on the upper surface of the upper chamber window, the light diffusion plate an...