US Patent Issued to Okinawa Institute of Science and Technology School on March 31 for "Long-persistent luminescence emitter and long-persistent luminescent device" (Japanese Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,245, issued on March 31, was assigned to Okinawa Institute of Science and Technology School Corp. (Onna-son, Japan).

"Long-persistent luminescence emitter and long-persistent luminescent device" was invented by Zesen Lin (Onna-son, Japan) and Ryota Kabe (Onna-son, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A long-persistent luminescence emitter containing a polymer that contains, relative to the total molar amount of an electron donor structural unit and an electron acceptor structural unit therein, 70 mol % or more of an electron donor structural unit and less than 30 mol % of an electron acceptor structural unit, or containing a polymer...