Seto Underglazed Ware is porcelain made in Aichi Pref. At the beginning of the 19th century, Tamikichi Kato and other local potters, who had studied pottery in Kyushu, returned to their hometown with the techniques for firing porcelain. Later they also learned techniques of an artist painter and began to produce the porcelain ware decorated with Southern Sung Dynasty style of painting, by which the name of this porcelain became popular and great developments were made to establish the basis for the present skills and techniques. The feature of Seto underglazed ware lies in the way the patterns of scenery, birds, and flowers in indigo blue are applied directly onto the surface of the unglazed white clay. The technique of firing called “Nerashi,” in which high temperature is maintained for a fixed length of time is used to mellow the applied glaze. All the processes are done by hand including painting with Gosu-paint. At the present time, tableware, tea utensils, and interior decorations are being made.