PartnerMasayuki Atsumi

Bar Admissions

admitted in Japan, 2009
admitted in New York, 2016
admitted in England & Wales, 2017
Daini Tokyo Bar Association

Contact Information

TEL +81-3-6270-3516
FAX +81-3-6270-3501

Languages

Japanese, English

Background

Kobe University School of Law (J.D., 2006)
Japan Fair Trade Commission (2006 - 2008)
Mori Hamada & Matsumoto (2009 - 2017)
University of Chicago Law School (LL.M., 2015)
Covington & Burling LLP (on secondment, 2015)
U.S. Federal Trade Commission (on secondment, 2016)
General Manager for Compliance, LIXIL Corporation (2017 - 2018)
Lecturer at the Kobe University Graduate School of Law (2019 - present)
Outside Director, Audit and Supervisory Committee Member, ARCLANDS CORPORATION (2022 - present)

Practice Areas

Competition Laws
  • Competition Laws
  • Subcontract Act
  • False Advertisement and Unjustifiable Premiums Act
Crisis Management and Security
  • Crisis Management and Security
Litigation and Disputes, Business Revitalization, and Bankruptcy
  • Litigation and Disputes
Government Relations
  • Government Relations

Publications

2022.12.16 GIR Know how – Anti-money Laundering 2022: Japan
Articles
2022.11.04 International Comparative Legal Guide - Cartels & Leniency 2023: Japan
Articles
2022.10.06 The Legal 500 – Merger Control Comparative Guide: Japan
Articles
2022.09.13 Lexology Getting the Deal Through - Competition in Digital Markets 2023: Japan Chapter
Articles
2022.08.10 Lexology Getting the Deal Through - Government Investigations 2023: Japan Chapter
Articles
2021.11.02 International Comparative Legal Guide - Cartels & Leniency 2022: Japan
Articles
2021.09.23 Lexology Getting the Deal Through - Competition in Digital Markets 2022: Japan Chapter
Articles
2021.08.11 Lexology Getting the Deal Through - Government Investigations 2022: Japan Chapter
Articles
2021.06.15 Japan introduced very limited attorney-client privilege for antitrust contexts – what in-house counsel should know –
Articles
2020.11.05 Lexology Getting the Deal Through - Digital Competition 2021: Japan Chapter
Articles
2020.08.09 Lexology Getting the Deal Through - Government Investigations 2021: Japan Chapter
Articles
2020.06.22 Merger Filing Guide: Japan Chapter
Other

Seminars

2022.03.31 Platforms and the sharing of sensitive information
External Seminars
2021.09.24 Competition Laws in India and Recent Developments
External Seminars
2020.03.06 Competition Laws in India and Recent Developments
External Seminars
2019.11.19 Competition Laws in India and Recent Developments
External Seminars

News

2023.01.11 The Legal 500 Asia Pacific 2023
Awards & Rankings
2022.04.14 The Best Lawyers - 2023 edition
Awards & Rankings
2021.04.20 Masayuki Atsumi commented on "Japan's JFTC dawn raids on power utilities have potential impact on grid regulations– analysis"
Media
2021.04.15 The Best Lawyers - 2022 edition
Awards & Rankings
2021.01.14 Masayuki Atsumi commented on "Japan’s amended AMA enhances cartel investigations but draws lukewarm response of companies: lawyers"
Media
2021.01.11 Masayuki Atsumi commented on "Google/Fitbit: EC commitments help clear Japanese M&A approval: lawyers" published by PaRR
Media
2020.10.14 Masayuki Atsumi named in “ALB Asia 40 Under 40”
Awards & Rankings
2020.04.10 The Best Lawyers - 2021 edition
Awards & Rankings
2019.10.04 Masayuki Atsumi appointed as Lecturer at the Kobe University Law School
NEWS