ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,446,388, issued on Oct. 14, was assigned to FUJIFILM Corp. (Tokyo).

"Photodetector element and image sensor" was invented by Masahiro Takata (Shizuoka, Japan) and Masashi Ono (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a photodetector element having a photoelectric conversion layer containing an aggregate of semiconductor quantum dots QD1 that contain a metal atom and containing a ligand L1 that is coordinated to the semiconductor quantum dot QD1, and a hole transport layer containing an aggregate of semiconductor quantum dots QD2 that contains a metal atom and containing a ligand L2 that is coordinated to the semic...