Two things:

1) I know Michio Kushi has sponsored the startup of a Kushi center in Japan. For information, call Michio Kushi's office in Brookline, Massachusetts, at 617-232-6876. Ask where it is and if it also in English (I don't think so, but you could try.)

2) Hiroko Kobayashi, a female cooking teacher and now certified Level 4 Kushi graduate, lives and teaches in Tokyo and may have additional information for you. Her number is (from the U.S.), 011 81 42 342 8806. She ordinarily teaches classes in Japanese, but she also speaks some English now. Ask her for other connections as well.