His younger brother was part of the delegation to the Eleventh Ordinary Session of the Assembly of the League of Nations[1] and the delegation to the Special Session of the Assembly Convened in Virtue of Article 15 of the Covenant at the Request of the Republic of China Government.

[2] From 1929 to 1933, he served as Japanese Ambassador to Sweden and non-resident Ambassador to Finland and in that capacity signed on behalf of the Japanese government the Convention on Certain Questions Relating to the Conflict of Nationality Laws (April 12, 1930).

He served as Japanese Ambassador to Germany from 1934 to 1937 and in that capacity signed the Anti-Comintern Pact as the representative of Japan.

[3] A viscount, he received the Grand Cross of the Royal Order of the Polar Star (Sweden) in 1933.

After the Second World War, he was purged from public office by the occupation authorities.