Daigorou Koyama: Owner of the invention shop "Edison". He claims to be a genius and comes up with various gadgets that don't quite work out. Was once tricked into building a robot for the Waller. See also Ulysses Poindexter - American counterpart in VR Troopers. See comparison page. Retrieved from "https://metalheroes.fandom.com/wiki/Daigorou_Koyama?oldid=36077" Categories: Jikuu Senshi Spielban Allies Community content is available under CC-BY-SA unless otherwise noted.