Masahiro Nishibori for his life served as diplomat in the ministry of foreign affairs and in the period of WW2 as First Lieutenant of the Navy.
Masahiro Nishibori was born in 1918.
Resigned the ministry (1943) and assigned to the Naval Staff Headquarters. Promoted to First Lieutenant of the Navy (1945), but demobilized after the end of the war and rejoined the Ministry of Foreign Affairs. Served in several offices of the ministry, appointed to the Overseas Office at San Francisco (1950). He became chief of the Second Section of the Treaty Bureau in 1954. In the same year attended the Japan-Burma Peace Treaty Conference.