Hiroyuki Tanaka is a partner at Mori Hamada & Matsumoto, licensed in Japan (Daini-Tokyo Bar Association) and New York, and an adjunct project professor at Keio University Graduate School of Law. His practice areas are data protection, IT and IP, and he has extensive experience in advising clients outside of Japan on Japanese data protection law. He is also familiar with global data protection regulations, including the GDPR and CCPA, and assists Japanese clients with global data protection compliance by working closely with local counsel. Hiroyuki also advises on legal issues relating to AI and the protection of cybernetic avatars and has published a number of works in his areas of expertise.
Hiroyuki Tanaka is a partner at Mori Hamada & Matsumoto, licensed in Japan (Daini-Tokyo Bar Association) and New York, and an adjunct project professor at Keio University Graduate School of Law. His practice areas are data protection, IT and IP, and he has extensive experience in advising clients outside of Japan on Japanese data protection law. He is also familiar with global data protection regulations, including the GDPR and CCPA, and assists Japanese clients with global data protection compliance by working closely with local counsel. Hiroyuki also advises on legal issues relating to AI an...

Publications

Data Protection Law Guide

Co-author of the Japan chapter in the Data Protection Law Guide , published 25 February 2025 , alongside Satoshi Ogawa and Shota Ogata .