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Haseru Roku

Partner

Tokyo Office

Haseru Roku

Partner

Tokyo Office

Contact

People

Haseru Roku’s practice focuses on complex cross border activity, including M&A, international trade and economic security related matters. Based on his strong in-bound and out-bound experience as well as his work at top tier law firms in the U.S. and China, his expertise also lies in trade friction, cross-border transactional disputes, and negotiations for acquisitions and joint ventures with companies in the Greater China area (mainland China, Singapore, Hong Kong and Taiwan). He is fluent in Chinese and English in addition to his native Japanese.

Practice Areas

Languages

Japanese, English, Chinese

Qualifications

2010, Japan (Dai-Ichi Tokyo Bar Association)

Practice Areas

Languages

Japanese, English, Chinese

Qualifications

2010, Japan (Dai-Ichi Tokyo Bar Association)

Education/Professional Experience

2006: The University of Tokyo (LL.B.)
2008: The University of Tokyo School of Law (J.D.)
2010 -: Nagashima Ohno & Tsunematsu
2017: Columbia Law School (LL.M.)
2017 - 2018: Schulte Roth & Zabel LLP, New York
2018 - 2019: Zhong Lun Law Firm, Beijing
2022 - present: Partner, Nagashima Ohno & Tsunematsu

Haseru Roku

Haseru Roku

Education/Professional Experience

Seminars

Recent Legal Developments in Taiwan: Navigating Semiconductor and Geopolitical Risks and Avoiding Legal Pitfalls Facing Japanese Companies

Regulatory Practices for Foreign Direct Investment (FDI) in Japan

“Management Challenges in the Economic Security Era”: Part 3 – “Investment Regulations and Restructuring Chinese Business”

“Management Challenges in the Economic Security Era”: Part 2 – “Geopolitical Situation, Risks and Business in China”

Publications

Recent trends in Chinese merger filing: Why does it take so long?

Business Environment Guide for Enterprises Investing Abroad in Countries (Regions) -Japan

Awards

High evaluation received in the 2026 Edition of The Best Lawyers in Japan™ and Best Lawyers: Ones to Watch in Japan™

High evaluation received in the 2025 Edition of “The Best Lawyers in Japan”

NO&T has been ranked first for the second consecutive year in Nikkei’s “Reliable Law Firm Rankings” by companies, and has also received high acclaim in “Best Performing Lawyers Rankings 2023.”

Featured Topics

Foreign Direct Investment Regulations and the Practice thereof – Given the Recent Economic Security Environment – Part02

Foreign Direct Investment Regulations and the Practice thereof – Given the Recent Economic Security Environment – Part01

Topics

NO&T sponsored the event “ALB Japan In-House Legal Summit 2023”

Now Available: “Foreign Direct Investment Regulations and the Practice thereof – Given the Recent Economic and Security Environment,” the Second Part of a Two-Part Round-Table Discussion

Now Available: “Foreign Direct Investment Regulations and the Practice thereof – Given the Recent Economic and Security Environment,” the First Part of a Two-Part Round-Table Discussion