premise: The Ohara Tokikan pottery hall is devoted to the work of modern pottery masters Kanjiro Kawai, Shoji Hamada, and Kenkichi Tomimoto, as well as their much admired friend, Bernard Leach, the influential British potter credited with popularizing Japanese rustic ceramic styles and techniques abroad.
hypothesis: After he left Japan, Bernard Leach attempted to export its pottery techniques to the world, but they proved unpopular.