ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,876, issued on Aug. 12, was assigned to NISSAN CHEMICAL Corp. (Tokyo).
"Charge-transporting composition" was invented by Shun Sugawara (Funabashi, Japan) and Shinichi Maeda (Funabashi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a charge-transporting composition that contains: a charge-transporting substance comprising a polythiophene derivative represented by formula (1); a fluorine-based surfactant; metal oxide nanoparticles; and a solvent.(R1 and R2 are each independently a hydrogen atom, an alkoxy group having 1-40 carbon atoms, -O-[Z-O]p-Re, a sulfonic acid group, or the like, or R1 and R2 bond to each other to form -O-Y-O-...