After involved in the establishment of Keifu Railways (connecting between Soul and Busan in Korea) and South Manchuria Railways, he promoted such activities as the organizational reform of railway operation, development of new coal mines, and the expansion of contingent businesses as the executive managing director (virtually the president) of Hokkaido Colliery and Railway Company (later Hokkaido Colliery & Steamship Co., LTD.).
京釜鉄道、南満州鉄道設立に関わった他、北海道炭鉱鉄道（のち北海道炭礦汽船）専務（実質社長）として鉄道業務機構の改組、新炭鉱の開発、付帯事業の拡張を推し進めた。