Architecturalscientist. In 1903, he graduated from the Imperial University of Tokyo College of Engineering Department of Architecture. He researched the structure of reinforced concrete, and pioneered the fields of earthquake-resistant construction and fire- and wind-resistant disaster prevention engineering construction. In the reconstruction plan after the Great Kanto Earthquake of 1923, he assumed the position of head of the architectural bureau of the Teito Fukkoin (Imperial City Reconstruction Department) and supervised the land readjustment project. He designed Nihonbashi Maruzen Bookstore, Japan’s first steel structure building.