In the Anglo-Japanese Treaty of Commerce and Navigation of 1894, he succeeded in removing some of the onerous unequal treaty clauses that had plagued Japanese foreign relations since the start of the Meiji period.
Dalam Perjanjian Anglo-Jepang Dagang dan Navigasi tahun 1894, ia berhasil menghapus beberapa berat merata perjanjian klausul yang dialami hubungan luar negeri Jepang sejak awal periode Meiji.