For a web site that claims to be for foreign Catholics in Tokyo it is certainly lacking in anything more helpful than a page of mass times in various languages. http://www.ctic.jp/ Third tab on the left has the page with the masses in various languages.
This site by the Society of the Sacred Heart has more info about the CTIC http://www.sacred-heart.or.jp/engctic.htm
Once again I encourage all foreigners to attend mass in Japanese as they are more widely available, the times tend to be more convenient, and you will feel more a part of the Japanese community. If you don’t understand the homily simply go to EWTN`s website or on itunes and listen to the daily readings and homily before or after the Japanese mass.