I, Nobuhisa Hagiwara, a professor of Cardiology in Tokyo Women's Medical University, have known him for eighteen years when he started his carrier of medical doctor. He has mainly been engaged in interventional cardiology for many years, and at this point, he became one of the experts both in coronary and peripheral intervention in Japan. He also has studied the regeneration therapy for four years in US. He published in the Circulation (2013 Jan 1;127(1):63-73.) a very impressed paper focusing on revascularization by bone marrow stem cells that were mobilized to peripheral circulation after the ischemic insult in mouse coronary artery. As combined these knowledge and technique, more efficient revascularization would be achieved in the real clinical settings. He still has a number of unique ideas on cardiovascular clinical and basic research projects, and is outstanding in providing a deep insight into the pathophysiology of cardiovascular disease.