In 1929, he was appointed Governor of Miyagi Prefecture. In 1931 he became Director of the Public Works Bureau, and Governor of Hiroshima Prefecture. In 1935, he was appointed Governor of Hyōgo Prefecture. In 1936, Yuzawa was appointed Vice Minister of the Home Ministry. In 1938, under the Hirota Kōki administration, Yuzawa was dispatched to China, to assist in the establishment of the Provisional Government of the Republic of China. While working closely with the Japanese Northern China Area Army, he established close connections with its chief-of-staff, General Akira Mutō. In 1940, he was appointed chairman of the Dai-Nippon Sangyō Jōhōkokukai, a war-time umbrella organization encompassing all of the former labor unions, which were now under government control.
On 7 February 1942, Yuzawa was appointed Home Minister in the Tōjō administration. Tōjō had originally insisted on holding the post concurrently with that of Prime Minister during the first months of World War II, fearing that the powerful security apparatus controlled by the Home Ministry could pose a threat to his administration should the war situation deteriorate. As Home Minister, Yuzawa organized government support for the Taisei Yokusankai, which won a landslide victory in the 1942 General Election, but had to contend with the increasing radicalization of the paramilitary youth wing of the party, the Yokusan Sonendan. [1] He also oversaw the creation of Tokyo Metropolis by the merger of Tokyo City with Tokyo-fu in 1942.
From April 1943 until the end of World War II, Yuzawa was appointed to a seat in the House of Peers.
After the surrender of Japan, Yuzawa was (along with all other members of the wartime government), purged by orders of the American occupation authorities. He subsequently served as honorary chairman of the Central Social Insurance Medical Council. In 1959, he ran for a seat in the post-war upper house of the Diet of Japan under the Liberal Democratic Party ticket and served for a single term. He died in 1963.
