Tomita @ Expo '70

I found a page with a lot of pictures and brochures from the Toshiba IHI Pavilion at Expo 70 Osaka. You can see his name credited for music in the brochure.

http://sa-ss.hp.infoseek.co.jp/expo70/toshiba-ihi.htm

4 minutes of the music taken from a single is still available on the compilation CD "Tea and Soft Rock" (TOCT-10787)

I've yet to find anything visually striking (or musically interesting for that matter) at Expo 2005 (in Aichi, near Nagoya) though if I see something that looks interesting I'll probably want to go. (So far the only artist I recognize who's involved is Robert Wilson)