• 1976~1982 : Completed undergraduate study, School of Medicine, Kyungpook National University
• 1982~1987 : M.Med., M.D. Graduate School of Medicine, Kyungpook National Univ.
• 1992 : Developed world’s first follicular unit hair transplantation technique
• 1994 : Received the 1st Platinum Follicle Award of Internatioanl Society of Hair Restoration Surgery
• 1995 : Received Golden Award of the World Hair Research Society
• 2001~2006 : Executive Director, Internatioanl Society of Hair Restoration Surgery
• 2001. 4 : Hosted workshop for Internatioanl Society of Hair Restoration Surgery
• 2005. 9 : Received a governor’s award of ‘Proud Citizen of Daegu Metropolitan City’
• First identified ‘the Mechanism of Hair Loss’ (Indentified DKK-1 gene is related to hair loss)
• 2011. 1~ : Chairman of KNHU Hair Transplantation & Research Center
• 2011. 10~ : Founding Chairman of the Korean Society of Hair Restoration Surgery