Hiroyuki Tanaka


Hiroyuki Tanaka

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His practice areas are data protection, IP, and IT. He has extensive experience advising foreign clients about Japanese data protection law. He is also familiar with global data protection regulations. He has extensive experience with various IP and technology disputes. His practice area includes legal issues relating to AI (especially generative AI) and the protection of cybernetic avatars.

Contact Information


Practice Areas

Hiroyuki Tanaka:Awards

The Best Lawyers in Japan™ and Best Lawyers: Ones to Watch in Japan™ (2025 edition)
MHM lawyers selected in "Who’s Who Legal: Japan 2023"
Top rankings received from asialaw 2023-24

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Hiroyuki Tanaka:News

Public Service
Hiroyuki Tanaka becomes a lecturer for Training to Ensure Skills as Counsel in Proceedings Alleging Specific Infringement, Japan Patent Attorneys Association
Public Service
Hiroyuki Tanaka becomes a Chairperson of Generative AI Section / Member of Privacy Section, AI and Law Society
Public Service
Hiroyuki Tanaka became a member of the Cyber-Physical Sustainability Center of Keio University Global Research Institute

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Hiroyuki Tanaka:Seminars

Sep. 9, 2021External Seminars
"The Japan DPO Association's 7th Seminar of the Study Group "How to Be Compliant With Advertising and Ad Tech (Cookie-Related) Regulations - Focusing on the Regulation of Personal Related Information under the Amended Act on Protection of Personal Information""
May 26, 2021External Seminars
"Live Seminar Key Points of the Draft Guidelines for the Amended APPI"
Apr. 15, 2021External Seminars
"Cyber Law Round Table – Q&A (JAPAN)"

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Hiroyuki Tanaka:Publications

Book Article
"IP Case Bulletin: Protection of Product Form under Article 2, Paragraph 1, Item 1 of the Unfair Competition Prevention Law - Dr. Martens Case (Appellate Instance), IP High Court Decision Dated November 9, 2023"
Magazine Article
"Essential Information on Global Personal Information Regulations, in the Form of Dialogue (17): Regulations on Cookies in Various Countries (2) - Europe"
"Chambers Global Practice Guides Cybersecurity 2024 - Japan Chapter"

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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

  • Adjunct project professor at Keio University Graduate School of Law(2023-) and Lecturer at Keio Law School (subject: Intellectual Property from a Global Perspective for LL.M. in Global Legal Practice) (2024-)
  • Member of the Cyber-Physical Sustainability Center of Keio University Global Research Institute (2023-)
  • Lecturer (Intellectual Property Law I) at Keio University (Department of Law)(2018)
  • Member of AI and Law Society (Chairperson of Generative AI Section / Member of Privacy Section)
  • Advisor to Japan DPO Association (2019-)
  • 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 for Training to Ensure Skills as Counsel in Proceedings Alleging Specific Infringement, Japan Patent Attorneys Association (2024-)

Practice Group

  • TMT (Data Security)
  • Intellectual Property
  • TMT (IT)
  • TMT (AI/IoT, etc.)
  • TMT(Telecommunications, Radio Wave, and Broadcast)
  • Dispute Resolution
  • International Disputes
  • Healthcare/Life Sciences (Pharmaceuticals)
  • Culture & Arts
  • Consumer Law
  • Fintech
  • China Practice
  • Asia Practice
  • Agriculture & Food Products

Bar Admissions

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