Sue ware

or "Chosen doki" were in more common use.

Sue ware is believed to have originated in the 5th or 6th century in the Kaya region of southern Korea, and was brought to Japan by immigrant craftsmen. It was contemporary with the native Japanese Haji ware, which was more porous and reddish in color. Sue ware was made from coils of clay, beaten and smoothed or carved into shape, and then fired in an oxygen-reduction atmosphere of over 1000 deg C. The resulting stoneware was generally unglazed, but sometimes displays an accidental partial covering of ash glaze, which melted in drips onto the ceramic pieces' surfaces as they were being fired.

Sue ware was produced in numerous locations around Japan, including southern Osaka prefecture, along the coast of the Inland Sea and parts of eastern Honshū. It was used for the roof tiles of the "Kokubunji" system of Provincial temples erected in the Nara period. By the end of early 7th century, its position as an elite product was eroded by mass production, and by the imports of the new three-color ceramics from Tang China. By the Heian period, Sue ware had become a utilitarian pottery, and it became the ancestor of a number of regional ceramics.

References

* Wilson, Richard L (1999). "Inside Japanese Ceramics: Primer of Materials, Techniques, and Traditions." Weatherhill, ISBN 0834804425.
* Honolulu Academy of Arts (2005). "Yakimono: 4000 years of Japanese Ceramics." Honolulu Academy of Arts, ISBN 0937426679.