ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,964, issued on Aug. 26, was assigned to Osaka Gas Co. Ltd. (Osaka, Japan).
"Radiative cooling film material" was invented by Masahiro Suemitsu (Osaka, Japan) and Masayuki Sugimoto (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The radiative cooling film material includes a film material; and a radiative cooling layer on an outer surface of the film material. The radiative cooling layer includes an infrared radiative layer having a radiative surface for radiating infrared light; and a light reflective layer on a side of the infrared radiative layer, which is opposite to the radiative surface. The infrared radiative layer is a resin mate...