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Atsumi & Sakai

Work +81 3 5501 2111
Fax +81 3 5501 2211
London, Tokyo

Setsuko Yufu

Work +81-(0)3-5501-1165
Atsumi & Sakai

Work Department

EU Related Matters (Competition, Trade Law Issues, M&As Included), Joint Ventures, M&A, Anti Trust Cases (Cartel and Bid-Rigging Cases Included), Emissions Trading, General Corporate Legal Matters Including Compliance




Loeff Claeys Verbeke (Brussels) (currently Allen & Overy) (Brussels) (1986–1987)
Keio University, Graduate School Lecturer (EU Law) (April 2005–March 2007) (April 2010–March 2012 )
Komazawa University, Graduate School Lecturer (EU Law) (April 2005–March 2007)
Member of the Intellectual Property Securitization Committee of the Japan Patent Attorney Association (2004-2007, Vice Chairman 2005–2006)
JFA Sports Managers College, Special Lecturer (Compliance) (2004–2011)
Member of the "Nomination Committee of Candidates for Representative Members," Fukoku Mutual Life Insurance Company (2010-2011)
Outside auditor for KFC Holdings Japan, Ltd. (Previously KFC Japan, Ltd.) (June 2011-June 2016)
Member of the Council on Antimonopoly Policy of JFTC (September 2016-)


Japanese and English


The European Union Studies Association- Japan (Board member 2013-), The Japan Association of International Economic Law, Japan Competition Law Forum (Board member 2015-)


Waseda University (LL.B.,1974)
University of Amsterdam, Europa Institute (Diploma, 1986)
The Legal Training and Research Institute of the Supreme Court of Japan

Japan: Antitrust and competition law

Independent local firms

Within: Leading individuals: bengoshi

Setsuko Yufu - Atsumi & Sakai

Within: Independent local firms

The team at Atsumi & Sakai has ‘extensive knowledge and experience’ with regards to domestic and cross-border antitrust matters for clients across a range of sectors, including manufacturing, energy and transport. Practice head Setsuko Yufuunderstands European business culture very well’ and is ‘a star in the field’ with ‘a hands-on approach and a strategic mind’. Saori Hanada and Tatsuo Yamashima are also recommended as ‘very bright, highly responsive and easy to work with’.

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Legal Developments in Japan

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to
  • Taking control of a Japanese publicly listed company:

    Introductory notes for successfully completing an M&A
  • Yuasa and Hara Business Law News

    Contents of the Issue Law on liability for breach of contract Review on the amendment to the cabinet office order on Corporate Disclosure

    The Minister for Justice, Alan Shatter (“the Minister”), has published the Criminal Justice Bill 2011 (“the Bill”). The main purpose of the Bill is stated to be “…to amend the criminal law to improve certain procedural matters and strengthen Garda investigative powers. The intention is that such improvements will assist in reducing the delays associated with the investigation and prosecution of complex crime, in particular white collar crime.”
  • Japan: New legislative framework for Sukuk

    The new framework passed in May 2011 will provide a solid legal platform for issuing Sukuk Ijarah under Japanese law. NAOKI ISHIKAWA highlights key legal structures and tax treatment in respect of the anticipated Sukuk issuances in Japan.
  • Yakult Bottle Acquired Distinctiveness

    Do you know about Yakult's delicious lactic acid drink which is contained in a small bottle? Yakult's lactic acid drink (hereafter referred to as "Yakult drink") is the most famous lactic acid drink in Japan and today is also being sold in many countries around the world. When you are enjoying Yakult drink, please keep in mind the case mentioned below.
  • Tax: Japan: International Joint Ventures

    Tax on international joint ventures. Country Q&A (Japan).
  • Japan: Recent Developments in Practice and Law

    The successful closing of two Islamic fi nance transactions which was announced in July 2010 by Nomura Holdings have paved a concrete path for Japanese corporations to consider overseas Islamic fi nance markets for their fund raising activities. The fi rst transaction was in Asia for the issuance of Sukuk Ijarah and the second was in the Middle East for the establishment of a Commodity Murabahah facility (Nomura Deals).
  • Renewable energy takes off in Japan

    Like many other countries, Japan has decided to reform its renewable energy (RE) policy, to dramatically increase the use of renewable energy. The core policy mechanism is a feed-in tariff (FIT). This chapter summarises the contemplated Japanese FIT and its practical impact on existing and future investment in this sector, providing an overview of:
  • Licensing - 2010

    Q & A on Licensing in Japan 
  • Law on the Civil Jurisdiction of Japanese Courts over Foreign Countries, etc.

    The Law has been enacted to clarify the scope of application of the civil jurisdiction of Japanese courts over foreign countries, etc., and set exceptions to civil preocedings involving foreign countries, etc., based on the United Nations Convention on the Jurisdictional Immunities of States and their property (UN Convention on Immunities) (see Article 1).