[1] He got a doctoral degree from Rikkyo University in 1986,[1] advised by Akio Fujii.
[2] His thesis was titled Discrepancy estimates for the value-distribution of the Riemann zeta-function.
[1] He joined Nagoya University in 1995, becoming a full professor there in 2001.
He co-edited Analytic Number Theory (2002), a book about prime numbers, divisor problems, Diophantine equations, and other topics related to analytic number theory, including Diophantine approximations, and the theory of zeta and L-functions.
[3] His other book, Algebraic And Analytic Aspects Of Zeta Functions And L-Functions, a compilation of lectures at the French-Japanese Winter School, was published in 2010.