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    Tsuyoshi Isshiki

    Partner

    Tokyo Office

    Languages
    Japanese, English
    Qualifications
    2008(-2015), Japan (Tokyo Bar Association)
    2016, Japan (Daini Tokyo Bar Association)
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    Tsuyoshi Isshiki primarily focuses on competition law, covering both merger control and cartel regulation. His tenure at the Japan Fair Trade Commission spanned 4 years, from 2010 to 2014, where he played a pivotal role in numerous high-profile cases, serving as the chief investigator at both the investigation bureau and the mergers and acquisition division.

    Practice Areas

    Education/Professional Experience

    2002
    Chuo University (LL.B.)
    2007
    Chuo Law School (J.D.)
    2008 - 2010
    Law firm in Tokyo
    2010 - 2012
    Japan Fair Trade Commission (Investigation Bureau)
    2012 - 2014
    Japan Fair Trade Commission (Merger and Acquisition Division)
    2014 - 2016
    Secretariat of the Headquarters for the Promotion of Administrative Reform, Cabinet Secretariat
    2016 -
    Nagashima Ohno & Tsunematsu
    2024 - present
    Partner, Nagashima Ohno & Tsunematsu

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    • Corporate
    • M&A
    • Finance
    • Global Investigations / Crisis Management / Compliance
    • Restructuring and Insolvency
    • Dispute Resolution
    • Labor and Employment
    • Real Estate and REITs
    • Intellectual Property
    • Antitrust and Competition
    • Tax
    • Wealth Management/Succession Planning
    • Infrastructure/Energy/Environment
    • Pharmaceutical and Healthcare
    • Hospitality
    • Technology
    • Media/Entertainment and Sport
    • Data Protection and Privacy
    • Consumer Law
    • International Trade and Commerce, and Economic Sanctions
    • Global Practice
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