Patients newly recognized as victims of a 1968 mass food poisoning across western Japan filed a damages suit Friday against the manufacturer of contaminated cooking oil, Kanemi Soko KK, demanding that the company and its two officials pay 286 million yen. The suit, filed by 26 plaintiffs with the Kokura Branch of the Fukuoka District Court, was the first collective lawsuit since a legal struggle to seek compensation concluded in 1987.