Daisuke Ikukawa is a senior associate at Nagashima Ohno & Tsunematsu, having joined in 2016. His practice primarily focuses on public and private M&A transactions. He has extensive experience in cross-border transactions, including multijurisdictional matters, and regularly advises both overseas clients investing in Japan and domestic clients investing overseas. He earned his LLB and JD from the University of Tokyo in 2013 and 2015 respectively, and his LLM from the University of Chicago Law School in 2023. He worked in the firm’s Singapore office in 2018 and as a visiting lawyer at Sullivan & Cromwell in New York and Tokyo from 2023 to 2024. He also served as an in-house counsel at Mitsui & Co. from 2021 to 2022. He is admitted to the bar in Japan and New York.

Daisuke Ikukawa is a senior associate at Nagashima Ohno & Tsunematsu, having joined in 2016. His practice primarily focuses on public and private M&A transactions. He has extensive experience in cross-border transactions, including multijurisdictional matters, and regularly advises both overseas clients investing in Japan and domestic clients investing overseas. He earned his LLB and JD from the University of Tokyo in 2013 and 2015 respectively, and his LLM from the University of Chicago Law School in 2023. He worked in the firm’s Singapore office in 2018 and as a visiting lawyer at Sullivan &...

Publications

Global M&A Law Guide

Co-author of the Japan chapter in the Global M&A Law Guide , published 28 April 2026 , alongside Kosuke Hamaguchi .