Dr. Hironobu Ihn is the Vice President, Kumamoto University Hospital and also the Professor & Chairman, Department of Dermatology & Plastic Surgery, Faculty Life Sciences, Kumamoto University, Kumamoto, Japan. He served as the lecturer, Department of Dermatology, Faculty of Medicine between 2001 and 2005 and became the associate Professor, Department of Dermatology, Faculty of Medicine, University of Tokyo. He was elected as the professor and Chairman, Department of Dermatology and Plastic Surgery, Faculty Life Sciences, Kumamoto University in 2005 and became the Vice President, Kumamoto University Hospital in 2013. He is the eminent member of Japanese Society of Dermatology, Japanese Society of Investigative Dermatology, Japanese Society of Clinical Immunology, Japanese Society of connective tissue Research, American Academy of Immunologists, American Society for Matrix Biology, Japanese Society of Allergy, Japanese Society of Rheumatology, Japanese Society of Cosmetic Dermatology, Japanese Society of Psoriasis, Japanese Society of Skin Cancer