He got his residency in Plastic Surgery at Nagasaki University Hospital, Japan and later his PhD from the Graduate School of Nagasaki University specializing in Plastic and Reconstructive Surgery. Research fellowship at Cedars-Sinai Medical Center, University of California, Los Angeles (UCLA) under the supervision of Shlomo Melmed on a cytokine expression and its regulation in vivo by using a transgenic animal model. He held the position of General Secretary of the 4th WUWHS Congress (Yokohama, Japan, Sept 2-6 2012), becoming the President of the WUWHS for the years 2012-2016. He is currently the President of the Asian Wound Care Association (AWCA). His research interests include: Cytokines and Stem cells in Wound Healing, Difficult Wound Healing (radiation injury), Regenerative Tissue enhancement to HIV-drug related-wasting patients, Reconstructive Surgery, Burn and Craniofacial Surgery. His list of publications include 85 peer-reviewed English original articles, 15 English overviews and 18 English-book chapters with 3 editorship of the books.