Takikawa became an assistant professor, then professor of Kyushu University in 1925. He resigned from this post in 1927. Since 1928 he has served as instructor at Chuo, Hosei, Keio and Tokyo Commerical universities and was appointed professor at Chuo University in 1930. Later Takikawa became professor at Kokugakuin University and was an authority on legislature. He has written several books on this subject.