He worked with Toyohiko KAGAWA (engaged in a social movement), Takechiyo MATSUDA (a parliamentarian of Rikken Minsei-to political party, who became the Chairman of House of Representatives after the Second World War), Takeo MIKI (a parliamentarian who became the Prime Minister after the Second World War), etc. to found "Japan-U.S. Fellow Association," and he became the first chairman.
賀川豊彦（社会運動家）・松田竹千代（立憲民政党代議士。戦後、衆議院議長）・三木武夫（代議士。戦後、首相）らとともに「日米同志会」を立ち上げて会長となる。