Actually, it’s the western region of Japan that uses 60 Hz. In the early days of electrification (around the 1880s), during the transition from DC to AC, wester

Actually, it’s the western region of Japan that uses 60 Hz. In the early days of electrification (around the 1880s), during the transition from DC to AC, western Japan adopted a 60 Hz standard using a generator built by General Electric. Meanwhile, eastern Japan imported a generator from the German company AEG, which operated at 50 Hz.