Before revision: in Japan – Waseda University, University of Tokyo, Shibaura Institute of Technology, Tokyo University of Science, Meiji University, Hosei University, Kyoto University, Shinshu University.
After revision: The students represented the following higher institutions:in Japan – Waseda University, University of Tokyo, Shibaura Institute of Technology, Tokyo University of Science, Meiji University, Hosei University, Kyoto University, Shinshu University.