札幌巨蛋
is a Japanese architect and author on architecture. His major works, including Kyōto Station, the Umeda Sky Building in Osaka, the Yamato International building in Tokyo, the Sapporo Dome in Hokkaidō, and other important structures in Japan, have earned many awards. With a doctorate in engineering, he was a professor at the University of Tokyo until 1997, and has held an emeritus position since that time.