Mikami Taku or Mikami Takashi (三上 卓; 22 March 1905 – 25 October 1971) was a lieutenant in the Imperial Japanese Navy, who participated in the May 15 Incident in which Prime Minister Inukai Tsuyoshi was assassinated. He composed the "Ode of Showa Restoration" as an anthem for the Young Officers Movement.
Source: “Mikami Taku”, English Wikipedia (CC BY-SA 4.0), excerpt