Denshi Sentai Denziman (電子戦隊デンジマン, Denshi Sentai Denjiman), translated as Electronic Squadron Denziman is Toei's fourth entry to its Super Sentai series. It was broadcast in 1980–81. It was Toei’s second series with a Marvel copyright, but with no Marvel involvement.
Denjiman was the first sentai with the familiar helmets and with hero designs by Bandai. (Wikipedia)