Big Data and Unilateral Conduct (Features: Platform Business and Competition Law)

Kojiro Fujii specializes in the fields of competition law and international trade law. He also covers emerging areas of digital policy/regulations and public policy/regulations, such as those related to sustainability. His expertise in these areas is frequently recognized by international and domestic legal publications. Kojiro also is regularly ranked by Chambers (Band 1 International Trade, Japan and Band 2 TMT, Japan) and Who’s Who Legal (Competition). He achieved the highest ranking in the “International Trade and Economic Security” category of Nikkei’s “Most successful lawyers” (as voted by Japanese companies and peer lawyers) in 2022; he was recognized by Asian Legal Business as one of the Top 15 Technology, Media and Telecommunications Lawyers in Asia in 2023; and he was shortlisted for the FT Innovative Lawyers Awards Asia-Pacific as the Most Innovative Practitioner for his work covering those areas in 2024.

In addition to his career at N&A, he served as the deputy director of the Ministry of Economy, Trade and Industry of Japan, where he handled several important WTO disputes on behalf of the Japanese government. He also worked at a highly reputable international law firm in Washington DC, where he focused on antitrust matters.

Tatsuya handles all aspects of competition law-related matters, such as merger control, bid rigging and cartel investigations, anti-trust litigation, and unfair trade practice regulations. He is also involved in advocacy efforts towards the development of competition policy. Tatsuya regularly advises on a number of digital and platform-related competition law cases, and has extensive experience in competition law matters within the infrastructure and energy sectors.

He is well-versed in a wide range of regulatory matters regarding legal issues in the new technology industry, including digital platforms, cloud computing, advertising, AI, data centers, social media, telecommunication services, radio waves, cybersecurity, FinTech, and consumer protection for domestic and international clients. He also offers guidance on analysis and strategy development pertaining to legal and public policy issues in the emerging areas of digital policy and regulations, as well as public policy matters (e.g., sustainability) in light of domestic and international political and policy trends.

He has published numerous works concerning digital policy and regulation, and his work in the field of competition law was featured in the Academic Retrospective of the notable legal journal Horitsujiho in 2023 and 2024.