- President of the Japan Dermatohistopathology Society
- Chief of Division of Dermatopathology, Nippon Medical School Musashi Kosugi Hospital, Kawasaki, Japan
- Professor, Department of Dermatology, Nippon Medical School
- Chief of Division of Dermatology, Nippon Medical School Musashi Kosugi Hospital, Kawasaki, Japan
- Board member of the Society for Skin Structure Research
- Editorial board of Skin Cancer(Official Journal of the Japanese Skin Cancer Society)
- Section editor (Dermatopathology) of the Journal of Dermatology