ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,461, issued on March 17, was assigned to SHIN-ETSU CHEMICAL Co. LTD. (Tokyo).

"Method for producing quantum dots" was invented by Yoshihiro Nojima (Annaka, Japan), Shinji Aoki (Annaka, Japan) and Kazuya Tobishima (Annaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is a method for producing perovskite type quantum dots, wherein, using a plurality of precursor solutions each containing a different element, each of the plurality of precursor solutions is heated and sprayed as an aerosol of the precursor solution, and the plurality of aerosols are collided to cause a gas phase reaction, dropping in a solvent to synthesiz...