1984-87: Ph.D., Grad. Sch. Sci., Univ. of Tokyo;
1987-89: Postdoctoral fellow, Japan Society for the Promotion of Science, Univ of Tokyo;
1989-96: Assistant Professor, Grad. Sch. Sci., Univ of Tokyo;
1996-2000: Associate Professor, Grad. Sch. Bioagr. Sci., Nagoya Univ.;
2000-04: Associate Professor, Bioscience Center, Nagoya Univ.;
2004-24: Professor, Biosci. Biotech. Center; Professor, Grad. Sch. Bioagr. Sci., Nagoya Univ.;
2021-23: Professor, Institute for Glyco-core Research, Nagoya Univ.;
2024-present: Designated Professor, Institute for Glyco-core Research, Nagoya Univ.

I am interested in three lines of research work: (A) Structural diversity and novel functions of sialic acids, such as deaminoneuraminic acid (Kdn), cyclic sialic acids, and sulfated sialic acids; (B) Sialic acid metabolisms in health and disease mainly using medaka fish; (C) Biological significance of membrane microdomains as glycan-clustered complex in cell-cell interactions.