TMT 2025

JAPAN Trends and Developments

Trends and Developments Contributed by: Keiji Tonomura, Minh Thi Cao Koike, Akira Komatsu and Yuki Matsumiya Nagashima Ohno & Tsunematsu

Nagashima Ohno & Tsunematsu is the first in - tegrated full-service law firm in Japan and one of the foremost providers of international and commercial legal services based in Tokyo. The firm’s overseas network includes offices in New York, Singapore, Bangkok, Ho Chi Minh City, Hanoi and Shanghai, and collaborative relation - ships with prominent local law firms throughout Asia and other regions. The firm’s TMT practice group is comprised of around 50 lawyers and

legal professionals and represents Japanese major telecom carriers, key TV networks, and many domestic and international internet, so - cial media and gaming companies, not only in transactions but also in disputes, regulatory matters and general corporate matters. Its TMT practice group is well positioned to consistently meet requests from clients to provide advice on business strategies, daily compliance and cor - porate matters.

Authors

Keiji Tonomura is a partner at Nagashima Ohno & Tsunematsu and the head of the firm’s TMT practice team. His practice

Minh Thi Cao Koike is a counsel at Nagashima Ohno & Tsunematsu. He advises domestic and foreign tech companies, internet service companies, and

focuses on M&A, IP/IT-related transactions, and data security/ privacy matters. He has extensive experience representing global and local clients on complex business transactions as well as regulatory matters, with a particular focus on the TMT sectors, including new business fields such as AI, fintech, healthtech, MaaS, and blockchain/crypto. He is actively involved in the rule-making process; for instance, he serves as a member of ”AI Institutional Research Group” (Cabinet Office) (2024– present) and ”web3 Project Team” (Liberal Democratic Party of Japan) (2022–present).

telecommunications companies on technology-related law and privacy regulations, and also has extensive experience in domestic and international M&A transactions involving tech companies. He was admitted to the Bar in Japan (Tokyo Dai-ichi Bar Association) in 2010 and in New York in 2017. He co-authored a book on legal tech in 2020 and the metaverse in 2024.

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