Masayuki Atsumi


Masayuki Atsumi

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Masayuki Atsumi:News

Public Service
A report titled "Research Report on the Status of the Execution by Competition Authorities in Emerging Nations and Other Counties" is released with contributions from Tsuyoshi Ikeda, Masayuki Atsumi, Shota Ogawa, and Ryoichi Inoue
Firm News
26 new lawyers joined Mori Hamada & Matsumoto

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Masayuki Atsumi:Seminars

Feb. 18, 2016MHM Seminars
”Cartel and Criminal Practice Bi-Monthly Update”
Dec. 10, 2015External Seminars
"Antitrust Development Update"

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Masayuki Atsumi:Publications

Magazine Article
"Recent Issues on Extraterritorial Applications of the US Antitrust Law - Revised U.S. Antitrust International Enforcement Guideline"
Book Article
"Series on Practical Issues of Corporate Litigation: Antitrust Litigation"
Magazine Article
"Overview of Iran's Competition Act"

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Masayuki Atsumi:Other


  • Sophia University (LL.B., 2004)
  • Kobe University, Graduate School of Law (J.D., 2006)
  • Japan Fair Trade Commision (JFTC) (2006-2008)
  • The University of Chicago Law School (LL.M., 2015)
  • Covington & Burling LLP, Washington DC Office (2015-2016)
  • U.S. Federal Trade Commission (2016-)

Major Activities

  • Japan Competition Law Forum (2010- )
  • Deputy Director-General, Japan Association of Arbitrators (2011- )

Bar Admissions

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