This article is about a/an actor in the Super Sentai series. Kouki Tanioka (谷岡 弘規, Tanioka Kōki) (born June 5, 1949) played Masao Den/Battle Japan, in Battle Fever J. He previously portrayed Wakamiya in episode 11 of J.A.K.Q. Dengekitai. Retrieved from "https://powerrangers.fandom.com/wiki/Kouki_Tanioka?oldid=793817" Categories: Super Sentai Actors Community content is available under CC-BY-SA unless otherwise noted.