Hiroyuki Tanaka


Hiroyuki Tanaka

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Hiroyuki Tanaka's practice areas are data protection, IT, and IP. He has extensive experience for advising foreign clients about Japanese data protection law. He is familiar with global data protection regulations including GDPR, CCPA, and Thai PDPA. He has extensive experience as a legal counsel for various IP infringement disputes and disputes related to IT including software, game, and app.

Contact Information


Practice Areas

Hiroyuki Tanaka:Awards

35 lawyers were selected as leading lawyers in asialaw Profiles "asia law Leading Lawyers 2021"
High evaluation received from " Who′s Who Legal: Japan 2020"
Lawyers from Mori Hamada & Matsumoto were included in the 11th edition of The Best Lawyers™ in Japan

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Hiroyuki Tanaka:News

Firm News
Eleven new partners and seven new counsels
Public Service
Hiroyuki Tanaka became the lecturer (Intellectual Property Law I) at Keio University (Department of Law)
Firm News
Twelve new partners and seven new of counsels

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Hiroyuki Tanaka:Legal Topics

Hiroyuki Tanaka:Seminars

Aug. 12, 2020External Seminars
"The Data Security issue in IOT Devices"
Jul. 24, 2018External Seminars
"The 9th Seminar on Practical GDPR Compliance (the Impact of Consent Requirements under GDPR on Cookie, Advertising and Marketing)"
Jan. 24, 2018External Seminars
"The 6th Seminar on Practical GDPR Compliance (GDPR Guidelines regarding Consent and Transparency)"

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Hiroyuki Tanaka:Publications

Magazine Article
"Handy Way to Learn Personal Information Protection Act Fundamentals, Including Revisions, in the Form of Dialogue - Part 6: Can We Freely Use Public Information? (Case Analysis of the Order Concerning the Use of Information on Bankrupts)"
Magazine Article
"Learning from Failures in Complying with Data Protection Laws - Case Studies and Analyses of Compliance Failures in Global Transactions"
Magazine Article
"IP Case Bulletin: Misleading Indication of Quality, Etc. Under the Unfair Competition Prevention Act (Yatsuhashi Case) - Kyoto District Court Decision of June 10, 2020"

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Hiroyuki Tanaka:Other


  • Keio University (LL.B., 2004)
  • Keio University Law School (J.D., 2006)
  • New York University School of Law (LL.M. in Competition, Innovation, and Information Law, Concentration in Intellectual Property Law, 2013)
  • with Clayton Utz, Sydney, Australia (2013-2014)
  • Lecturer (Intellectual Property Law I) at Keio University (Department of Law)(2018)

Major Activities

  • Member of Japan Association of Industrial Property Law
  • Member of Copyright Law Association of Japan
  • Member of Information Network Law Association
  • Member of Law and Computers Association of Japan
  • Member of Association of Law and Information Systems
  • Member of International Association of Privacy Professionals
  • Lecturer (Intellectual Property Law I) at Keio University (Department of Law)(2018)
  • Advisor to Japan DPO Association (2019-)

Practice Group

  • Intellectual Property Practice Group
  • Litigation Practice Group
  • International Dispute Resolution Practice Group
  • Technology, Media and Telecommunications Practice Group
  • China & Asia Practice Group

Bar Admissions

admitted in Japan, 2007; New York, 2014
Daini-Tokyo Bar Association
New York State Bar Association