US Patent Issued to MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS on March 25 for "Light guide plate and light emitting device using same" (Japanese Inventor)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,571, issued on March 25, was assigned to MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS LTD. (Tokyo).

"Light guide plate and light emitting device using same" was invented by Yasuo Katayama (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The purpose of the present invention is to provide a light guide plate with which it is possible to prevent light unevenness and improve appearance, and a light emitting device using the same. A light guide plate (11) is provided with: a light incidence surface (12) on which light is incident; a light emission surface (13) which faces the light incidence surface (12) and from which light incident from the light ...