Ultraman's licensing rights outside of Japan have been the subject of a long legal dispute between Tsuburaya Productions and Chaiyo Productions (also called Tsuburaya Chaiyo Co Ltd) based in Thailand. Tsuburaya had previously worked together with Chaiyo on the production of two movies, "The 6 Ultra Brothers vs. the Monster Army" and "Jumborg Ace & Giant"—the latter of which featured another Tsuburaya superhero, Jumborg Ace—in 1974. Sompote Saengduenchai, founder/president of Chaiyo Productions, claimed and maintained that in 1976, the late Noboru Tsuburaya, Eiji's son, who had died in 1995, had given him and his company a contract which had given him rights to everything Ultraman outside Japanese territories in exchange for a monetary loan.