Sometsuke (染付) was a white pottery with indigo patterns (i.e., Blue-and-white ware). On the surface of white pottery, mainly porcelain, designs are painted with cobalt oxide paint gosu 呉須, a coat of transparent glaze is applied and the vessel is fired at 1300-1350 c. In China, it became popular during the Yuan dynasty and influenced ceramics in other Asian countries and Europe. In Japan, the first sometsuke were made in the Genna 元和 era (1615-24) in Arita by a Korean potter called Ri Sanpei. Imari sometsuke became very popular and was exported. The Nabeshima kiln made superior sometsuke. In the later Edo period, sometsuke porcelain was made in Kyoto and many sometsuke masters made copies of Chinese Ming period pieces. In Seto, Katou Tamikichi 加藤民吉 (1772-1824) adapted Hizen 肥前 sometsuke techniques to make sometsuke porcelain comparable in quality to that of Imari. See "Sometsuke". JAANUS: Japanese Architecture and Art Net Users System. Retrieved 2015-05-21.