Tsuda College
She graduated from Tsuda College, was Professor at Hosei University (1985–2007), and Visiting Scholar at Harvard University(2011–12), European University Institute(2007), Sorbonne University (2004), University of London(1996-7), and Hungarian Academy of Science, Institute of History(1995–96). She was a lecturer at University of Tokyo, Kyoto University, Hitotsubashi University, Waseda University, and Keio University.