Short answers, pulled from the story.
The International Military Tribunal for the Far East convened on the 29th of April 1946 inside Ichigaya Court in Tokyo. This building had previously served as the Imperial Japanese Army H building before becoming the stage for a historic legal proceeding.
The tribunal drew judges from eleven nations including Australia, Canada, China, France, India, the Netherlands, New Zealand, the Philippines, the Soviet Union, the United Kingdom, and the United States. Joseph B. Keenan of the United States served as the chief prosecutor while over one hundred attorneys defended the accused defendants.
The proceedings began with charges covering crimes against peace, conventional war crimes, and crimes against humanity committed between 1931 and 1945. The IMTFE exercised broader temporal jurisdiction than its Nuremberg counterpart by starting from the 1931 Japanese invasion of Manchuria rather than the 7th of December 1941.
Seven defendants received sentences of death by hanging on November 4 and 12, 1948. These included General Hideki Tojo, Prime Minister Kōki Hirota, General Seishirō Itagaki, General Heitarō Kimura, Lieutenant General Akira Mutō, General Kenji Doihara, and General Iwane Matsui.
Emperor Hirohito and members of the Imperial House faced potential indictment yet were never prosecuted or called to testify. Herbert P. Bix documented how MacArthur confirmed to Admiral Mitsumasa Yonai on the 26th of November 1945 that abdication would not be necessary while Brigadier General Bonner Fellers worked immediately upon landing in Japan to protect Hirohito from war responsibility roles.