Shibusawa Eiichi
Tatsuno's connection with Shibusawa Eiichi brought him the commission to design the Bank of Japan in 1890 (completed in 1896). It was first building of its type to be designed by a native Japanese person. Tatsuno immediately set off to Europe for a year to do research for the project, studying amongst other buildings, the Banque Nationale in Brussels by Beyaert and Janssens.