This is information by MIC (Ministry of Internal Affairs and Communications).
The use of foreign standard radio device is strictly prohibited in Japan.
English http://www.soumu.go.jp/soutsu/hokkaido/eng.htm
Chinese http://www.soumu.go.jp/soutsu/hokkaido/chi.htm
Taiwanese http://www.soumu.go.jp/soutsu/hokkaido/twn.htm
Korean http://www.soumu.go.jp/soutsu/hokkaido/kor.htm
