With one of the largest legal teams in Japan, we bring a wealth of practical knowledge focused on the singular purpose of providing high quality legal services.


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Shigeki Minami

Shigeki Minami


Tokyo Office

Shigeki Minami

Shigeki Minami


Tokyo Office





Shigeki Minami

Shigeki Minami’s practice focuses on various forms of mergers and acquisitions.
Mr. Minami also deals with general tax matters, employing his wide range of related knowledge and abundant experience. He regularly represents major Japanese and foreign companies in tax audits, tax disputes and competent authority procedures (including APA and MAP) with the Japanese and foreign tax authorities, and he has litigated tax cases in the National Tax Tribunals and the Japanese courts.
Mr. Minami has successfully represented large corporate taxpayers, obtaining significant judgments in their favor. These include IBM in a case involving anti-avoidance rules; Honda Motor Co., Ltd., Takeda Pharmaceutical Company Limited, and NGK Insulators, Ltd. in transfer pricing cases; and an individual in a case regarding taxation on a structured note. Mr. Minami serves as the Chair of the Asia-Pacific Regional Committee of the International Fiscal Association (IFA), and as a member of the Practice Council of the International Tax Program, New York University School of Law.

The University of Tokyo (LL.B.)
Admitted to bar in Japan
New York University School of Law (LL.M. in Corporate Law)
New York University School of Law (LL.M. in Tax Law)
2003 - 2004
Masuda & Ejiri, New York
2005 - 2021
Visiting Professor in tax law, LEC Graduate School of Accountancy
2006, 2008 and 2009
Adjunct Lecturer in civil law seminar, The University of Tokyo
2007 -
Nagashima Ohno & Tsunematsu
2009 - present
Partner, Nagashima Ohno & Tsunematsu
2010 - present
Adjunct Lecturer in law and economics, The University of Tokyo
2016 - present
Visiting Professor in Tax Law, Graduate School of Law, Kobe University
2017 - present
Adjunct Lecturer in Tax Law, Sophia Law School
2019 - present
Member of the Future Direction of Corporate Taxation, Research Institute of Economy, Trade and Industry (RIETI)
2021 - present
Board member, International Fiscal Association Japan Branch
2022 - present
Project member of the Study Group for the Implementation of Domestic Legislation regarding the Global Minimum Tax under Pillar Two, which was established by the Ministry of Economy, Trade and Industry
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