Joseph De Roo From Wikipedia, the free encyclopedia Joseph R. De Roo (12 July 1932 in Aarsele – 18 October 2001 in Tokyo) was a friar at the Institute of Japanese Studies in Tokyo. He developed the De Roo Kanji classification system which allows one to look up Kanji efficiently.[1] References [1]APPENDIX G - DE ROO CODES This article about a translator or translation scholar is a stub. You can help Wikipedia by adding missing information.vte Related Articles