From December 1932, Shiozawa was commander of the Chinkai Guard District. Shiozawa was promoted to vice admiral on November 15, 1933. He was Director of Naval Air Command from 1934–1935, Commander-in-chief of the Maizuru Naval District from 1935–1936 and of the Sasebo Naval District from 1936-1937. When the IJN 5th Fleet was formed on February 1, 1938 Shiozawa became its first Commander. During his command he oversaw the Amoy Operation and the Canton Operation from October to December 1938. He was decorated with the Order of the Sacred Treasure (1st class) on August 13, 1938. From January 1939, he was Director of the Naval Shipbuilding Command.