The Kawasoe family, ancestors of the Kosen Kiln, were artisans who specialized in figurines and glaze research. Their skills were passed down through generations, and in 1963, Tameo—grandfather of the current owner—founded Kosen Kiln.

With a passion for bringing Nabeshima seiji (celadon) to the world, Tameo devoted himself to glaze research. At the time, celadon was so difficult to produce that it was said firing it could ruin a business. Despite this, after more than a decade of tireless effort, he successfully completed his research.

Kawasoe Takahiko is the third-generation artisan carrying on the legacy of Nabeshima ware, which traces its origins to Okawachiyama—a village revered since the Edo period (1603–1868 CE) as the “hidden kiln village.” Committed to preserving this cultural heritage for generations to come, Takahiko has embarked on the first research and development of celadon porcelain in fifty-six years. While honoring the traditional techniques of Nabeshima ware, he approaches the craft from a new perspective, distinct from that of his grandfather.