1977-1981	Kyoto University, Faculty of Science, Mathematics Bachelor (Mathematics)
1981-1983	Osaka City University, Graduate School of Science, Master of Sciences (Mathematics)
1983-1989	Osaka City University, Graduate School of Science, Accomplished credits for doctoral program (Mathematics)
1989-1992	Reseach Fellow, Research Instutute of Mathematical Sciences, Kyoto University
1991	Research Instutute of Mathematical Sciences, Kyoto University, Doctor of Sciences (Mathematical Sciences)