ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,389,796, issued on Aug. 12, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).
"Optical sensor" was invented by Kyohei Kakuyama (Osaka, Japan), Kotaro Hirose (Osaka, Japan) and Masahiro Adachi (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical sensor includes a support film, a thermoelectric conversion material portion, a heat sink, a light absorption film, a first electrode, and a second electrode. The thermoelectric conversion material portion includes a plurality of first material layers and a plurality of second material layers. The support film includes a first layer arranged on the heat sink side in a thickness ...