Who signed the Japanese Instrument of Surrender second for Japan?

Yoshijirō Umezu signed the Japanese Instrument of Surrender second for Japan.

Umezu was chief of the Imperial Japanese Army General Staff and signed on behalf of the Japanese Imperial General Headquarters. He added his signature at 9:06 a.m. Japan Standard Time, two minutes after Foreign Minister Mamoru Shigemitsu signed for the Japanese government.

The two signatures distinguished Japan’s political leadership from its military command. Umezu’s role was especially significant because the army had strongly resisted surrender during the final days of the war.

Umezu was followed by General Douglas MacArthur, who accepted the surrender for the Allied powers. The ceremony then continued with signatures from representatives of the United States and eight other Allied countries.