US Patent Issued to Nippon Kayaku on Aug. 5 for "Liquid-crystal composition containing anthraquinone compound and light-modulating element" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,474, issued on Aug. 5, was assigned to Nippon Kayaku K.K. (Tokyo).

"Liquid-crystal composition containing anthraquinone compound and light-modulating element" was invented by Hitomi Muto (Tokyo), Kohei Ohtani (Tokyo), Saori Suzuki (Tokyo), Takashi Yoshimoto (Tokyo), Masakazu Shiraishi (Tokyo) and Kanae Ogawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Liquid-crystal composition comprising (A) dye compounds and(B) a liquid crystal material, wherein the dye compounds (A) include an anthraquinone compound represented by general formula (1) and an anthraquinone compound represented by general formula (2) in a specific proportion and further inc...