After World War II, he designed many products: furniture, three-wheeled vehicles, Olympic cauldrons, pedestrian overpasses, etc. One of the most famous pieces of furniture is his Butterfly Stool. Announced in 1956, its' 2-piece form has been compared to a butterfly's open wings. Alternately, the shape can be seen as the gateway of a Shinto shrine or even an antique samurai helmet. In effect, it is a form that is both modern and timeless, that has won critical acclaim and prizes, and is included in major collections such as the Museum of Modern Art New York and the Ruble Museum.