Kentaro Hirayama

Kentaro Hirayama

Education

University of Tokyo (LL.B., 2001)
The Legal Training and Research Institute of Japan (, 2002)

Bar Admissions

Japan

Kentaro Hirayama is Of Counsel to Ito & Mitomi. Mr. Hirayama works primarily in the field of antitrust law, government regulations and other corporate legal affairs. He has counseled European, American, Asian and Japanese clients in litigation matters, a number of cartel, monopoly, unfair trade practice, abuse of standard essential patents and related administrative fine cases, as well as merger filings in Japan, China, the EU and the US.

His skills and experience in competition and antitrust law is widely recognized and he has been listed as a leading Japanese competition lawyer in Chambers Asia Pacific (2013-2017 editions), Who's Who Legal: Competition (2017 edition) and recommended as a “Next Generation Lawyer” in The Legal 500 Asia Pacific (2018 edition). Mr. Hirayama was named to Global Competition Review’s inaugural “40 Under 40” 2015 list of the world’s leading antitrust and competition lawyers under the age of 40, in which he is the only Japanese attorney listed.

His experience includes the following:

  • Representing Japanese companies in respective international cartel cases, including filing leniency applications to the Japan FTC and foreign authorities
  • Represented a large multinational technology company in an investigation and administrative hearing in relation to an abuse of certain licensing terms
  • Representing an Asian company in filing a complaint to the Japan FTC against a Japanese company for abuse of essential patents
  • Represented a US electronic component company in merger notification to the Japan FTC, which was cleared after Phase II review by the JFTC and other competition authorities

In addition to his professional experience, he worked for the Japan Fair Trade Commission (July 2007–June 2010), where he was a case manager in the Marine hose case, other high-profile international cartel cases and an abuse of dominance case. In the course of these worldwide parallel investigations, he also engaged in information exchanges, coordination of simultaneous dawn raids and other collaborations with foreign competition authorities.

Since returning to private practice in 2011, he has been active as a non-governmental adviser (NGA) for the International Competition Network (ICN), a forum for approximately 100 national competition agencies worldwide. In addition, he also serves as an associate professor at the Tokyo University of Science and a lecturer at Tsukuba University School of Law, where he lectures on competition law.

Mr. Hirayama is ranked in the competition and antitrust category by Chambers Asia Pacific (2013-2017 editions), Who's Who Legal: Competition (2017 edition) and as a “Next Generation Lawyer” in The Legal 500 Asia Pacific (2018 edition). Mr. Hirayama was also named to Global Competition Review’s inaugural “40 Under 40” 2015 list of the world’s leading antitrust and competition lawyers under the age of 40, in which he is the only Japanese attorney listed.

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