ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,231, issued on May 13, was assigned to SONY GROUP Corp. (Tokyo).

"Fluorescent spectrum correcting method and fluorescent spectrum measuring device" was invented by Masaya Kakuta (Tokyo), Koji Futamura (Kanagawa, Japan), Yoshitsugu Sakai (Kanagawa, Japan) and Yasunobu Kato (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluorescent spectrum correcting method includes comparing fluorescent spectrum obtained from micro-particles labeled with a plurality of fluorescent pigments with reference spectrum to separating the fluorescent spectrum into fluorescent spectrum for each pigment, and previously measured spectrum data is used as the ...