Tatsuo Yamashima

Tatsuo Yamashima
Fukoku Seimei Bldg
2-2, Uchisaiwaicho 2-chome
+81 3 5501 2297


Who's Who Legal Japan - Competition

Tatsuo Yamashima is a partner at Atsumi & Sakai and is admitted to the bar in Japan. He primarily works in the field of antitrust and competition law, but also advises on compliance, employment and other corporate legal affairs.

Tatsuo has extensive experience in international cartel cases and merger filings, and has broad-ranging knowledge of antitrust and competition legislation with regard to international cartel enforcement actions by authorities outside Japan. He has acted as lead counsel in representing many Japanese and foreign companies in cases involving the Japan Fair Trade Commission (JFTC), the European Commission, the US Department of Justice and other regulatory authorities in Asia, Oceania, Latin America and Africa. The competition matters that he has advised on relate to, inter alia, IT devices, freight forwarding, power cables, the financial sector, auto-parts, international shipping, and other manufacturing and service industries; he also has significant experience with leniency applications at the JFTC.

Mr Yamashima has been ranked as a leading individual for antitrust and competition law in Who’s Who Legal: Competition and Chambers Asia-Pacific, and is a member of the Japan Competition Law Forum and the European Union Studies Association in Japan. He has published competition law related articles in several journals and given seminars related to international cartel investigations.

Tatsuo is a graduate of the University of Tokyo (BA, 2002; LLM, 2004). He worked in Brussels in the competition law group of a leading global firm in 2011 as a visiting foreign attorney.

WWL says: Tatsuo Yamashima stands out in the Japanese market for his world-class competition practice.

This biography is an extract from Who's Who Legal: Japan which can be purchased from our Shop.

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