Doctor of Medicine, Kurume University, 1984; Doctor of Medical Science, Kurume University, 1988.
Resident Kurume University Hospital, Japan, 1984-1986, fellow Japan, 1986-1989, chief pediatrics cardiology Japan, 1992-1998. Research fellow Hospital for Sick Children, Toronto, Canada, 1989-1992. Assistant professor pediatrics Kurume University, since 1998.
Son of Yoshiro Tokuda and Tachiko (Kagiyama) Tokuda. Married Ayako Kato, February 22, 1998. Married Yuko Nakamura, February 8, 1986 (deceased 1996).