Hiroyuki Tanaka
Partner
”He always gives practical advice, based on his deep understanding of standard data privacy practices and the client's needs."
Leology Index - Client Choice (Data)v
"Hiroyuki Tanaka is a highly regarded practitioner with impeccable knowledge of regulatory and compliance matters, advising international technology clients on complex data privacy and global digital regulation issues."
Leology Index - Artificial Intelligence (Regulatory & Compliance)
"With extensive experience in advising global clients on Japan’s complex data protection laws and emerging AI regulations, Hiroyuki Tanaka earns top-tier recognition for his strategic counsel across international tech markets."
Leology Index - Data
"Hiroyuki is amazingly familiar with data privacy laws and regulations, including Japan's APPI and the GDPR."
Leology Index - Client Choice (Data)
"He has wide and deep knowledge on global data privacy laws."
Leology Index - Thought Leaders (Data)
Practices
Seminars
Past
September 17, 2025 (Wed) 2:00 p.m. - 4:00 p.m.“Privacy and Data Protection in the Digital Age”External Seminars
Past
January 21, 2025 (Tue) 16:30 p.m. - 18:00 p.m.“An Update on U.S. Privacy Regulations and a Lookahead to What to Expect in 2025”Mori Hamada Seminars
Past
September 5, 2024 (Thu) 4:45 p.m. - 5:45 p.m. (CET)”Cyber Avatars, Artificial Intelligence and Intellectual Property: The Japanese Perspective”External Seminars
Past
July 29, 2024 (Mon) 3:30 p.m. - 5:00 p.m."Ensuring Safety and Security for Cybernetic Avators: Addressing E3LSI Challenges"External Seminars
Current
Past
September 09, 2021 (Thu) 15:50～16:50"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 InformExternal Seminars
Past
May 26, 2021 (Wed) 13:00～14:00"Live Seminar Key Points of the Draft Guidelines for the Amended APPI"External Seminars
Past
Past
July 24, 2018 (Tue) 2:00pm-6:00pm"The 9th Seminar on Practical GDPR Compliance (the Impact of Consent Requirements under GDPR on Cookie, Advertising and Marketing)"External Seminars
Past
January 24, 2018 (Wed) 2:30pm-5:30pm"The 6th Seminar on Practical GDPR Compliance (GDPR Guidelines regarding Consent and Transparency)"External Seminars
Related Topics
Major Awards
- Recognized as a Global Elite Thought Leader in the Data category of the Lexology Index. Also selected in the Artificial Intelligence – Transactional & Advisory and Regulatory & Compliance categories of the Lexology Index
- Named as Thomson Reuters Stand-out Lawyers - independently rated lawyers
- Recognized in Best Lawyers® in the Privacy and Data Security Law and Technology Law area
- Recognized in IAM Patent 1000 – Japan (Litigation)
- Repeatedly recognized in the Nikkei Corporate Legal Affairs & Taxation / Attorney Survey’s ranking of outstanding lawyers (2025: Ranked 6th by corporations in the field of AI Governance; 2024: Ranked 3rd by corporations in the field of AI, Technology & Data; 2022: Selected in the Intellectual Property category; 2019: Ranked 5th by corporations in the Data-related field)
- Recognized in the AI / IT category of Bengoshi.com’s ‘Top 100 Business Lawyers Chosen by In-House Counsel and Attorneys
Profile
Background
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)
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-)
- Researchers for Japan Science and Technology Agency’s Moonshot R&D Program Moonshot Goal1: Realization of a society in which human beings can be free from limitations of body, brain, space, and time by 2050 /Realization of a society where avatars can be used safely and reliably (2023-)
- Lecturer for Training to Ensure Skills as Counsel in Proceedings Alleging Specific Infringement, Japan Patent Attorneys Association (teaching Design Act) (2024-)
- Advisor to Japan DPO Association
- Member of AI and Law Society (Chairperson of Generative AI Section / Member of Privacy Section and IP Section)
- 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
Qualifications & Affiliations
admitted in Japan, 2007; New York, 2014membership: Daini-Tokyo Bar Association
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