While these other reforms were taking place, various military tribunals, most notably the International Military Tribunal for the Far East in Ichigaya, were trying Japan's war criminals and sentencing many to death and imprisonment. However, many suspects such as Masanobu Tsuji, Nobusuke Kishi, Yoshio Kodama and Ryōichi Sasakawa were never judged, while the Emperor Hirohito, all members of the imperial family implicated in the war such as Prince Chichibu, Prince Yasuhiko Asaka, Prince Fushimi Hiroyasu, Prince Naruhiko Higashikuni and Prince Tsuneyoshi Takeda, and all members of Unit 731—including its director Dr. Shirō Ishii—were granted immunity from criminal prosecution by General MacArthur.