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Asia-Pacific Guide
Individual Profile

Eriko Watanabe

Nagashima Ohno & Tsunematsu - Tokyo

No profile photo
  • JP Tower
  • Tokyo, Tokyo-to, Japan
  • 100-7036

Profile submitted by Eriko Watanabe

Practice Areas

Antitrust/competition law; crisis management; antitrust litigation.

Professional Memberships

Daiichi Tokyo Bar Association.


Qualified in 1988. Ms Watanabe is an antitrust Partner with Nagashima Ohno & Tsunematsu in Tokyo, Japan. She has worked at Kirkland & Ellis in Chicago (1994-95) as a visiting attorney, and has served as a deputy director of the Fair Trade Commission of Japan (1995-98). While continuing private practice, she assumed the position of Professor at Keio Law School and taught antitrust and corporate (2004-07) and has been a member of various commissions and study groups of the ministries and governmental agencies, e.g., a commissioner of the Supervisory Commission for Public-Private and Private-Private Competitive Tenderings appointed by the Prime Minister of Japan (from April 2007 to July 2012). She also assumed the position of a member of the Board of Governors and a member of the Supervisory Board of Nippon Hoso Kyokai (NHK), Japan Public Broadcasting Corporation, appointed by the Prime Minister with the approval of both Houses of National Diet (from March 2012 to February 2015).


She has written on numerous legal topics regarding the Antimonopoly Law of Japan in English, including in ‘Doing Business in Japan – Competition Law’, ‘Merger Control Worldwide’ (Japan part), and ‘Anti-Cartel Enforcement Worldwide’ (Japan part) for the Cambridge University Press, and has authored many publications in Japanese, including several chapters in the book entitled ‘Practice regarding the Antimonopoly Law of Japan’ (2006), various papers such as ‘New Merger Guidelines and review of merger cases by the JFTC’ for Fair Trade (2003 and 2004), ‘Recent Trends in Merger Control in the United States & Europe’, and an academic paper on antitrust issues regarding price fixing cases (2013). She also recently co-authored a few commentaries regarding the Antimonopoly Law of Japan (2014).


She earned her LLB in 1983 at Tohoku University in Japan and her LLM in 1994 at the University of Washington, School of Law in Seattle (Comparative antitrust/competition law program).