The exhibition features more than 160 works from the Hosokawa family collection housed in the Eisei-Bunko Museum in Tokyo, and from Kumamoto Castle and the Kumamoto Municipal Museum in Kyushu. Objects on view include suits of armor, armaments (including swords and guns), formal attire, calligraphy, paintings, tea wares, lacquerware, masks, and musical instruments.
The Asian Art Museum is the only U.S. venue for this exhibition.
Tea wares!? A quick perusal of the website lead me to this link about Raku:
http://www.asianart.org/blog/index.php/2009/05/18/raku-with-a-big-r/