Debuchi served as a diplomat in
China, where he was head of the
Japanese Foreign Office division which dealt with Chinese affairs. He later served as vice minister of foreign affairs for Japan. In 1928, Debuchi was appointed ambassador to the United States, succeeding
Tsuneo Matsudaira. He was due to leave his position during 1931, but remained in the position following the
Mukden Incident. In November 1933, Debuchi left his position as ambassador to the United States, apparently due to his failure to convince them not to oppose Japanese actions in
Manchukuo (
Manchuria). However, he remained part of the Japanese diplomatic mission afterwards, visiting
Australia in 1935 as a
goodwill ambassador. ==Personal life==