It was founded in 1917, as Toyo Toki (Oriental Ceramic), when it introduced Western-style sit-down lavatories to japan-a farsighted move, considering the country lacked a sewage system at the time.

1917年东陶成立，原名TOYO Toki(东方陶瓷)，考虑到当时日本缺少污水排放管理系统，东陶引进了西式的坐式马桶，这是一项很具有远见的措施。