Mr. Ko is an associate of Ito & Mitomi. Mr. Ko represents a variety of corporations, both from Japan and overseas in a range of general corporate and commercial transactions, including mergers and acquisitions, labor, and litigation matters.

Mr. Ko received his B.A. in Political Science from Waseda University in 2003, and completed his training at the Legal Training and Research Institute of the Supreme Court in October 2006. Mr. Ko is a member of the Daini Tokyo Bar Association.