US Patent Issued to IDEMITSU KOSAN on March 3 for "Color conversion particle" (Japanese Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,615, issued on March 3, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Color conversion particle" was invented by Takuya Kato (Tokyo), Toru Inatome (Tokyo), Yuta Higashino (Tokyo), Yusuke Oda (Tokyo) and Yoshinori Kimoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A color conversion particle includes a core; and a shell that contains the core and absorbs excitation light, and emits light at the core or at an interface between the core and the shell upon receiving the irradiated excitation light. The core is composed of a chalcogenide perovskite, and the core and the shell have band alignment that induces a Stokes shift."

The patent was...