- Languages
- JapaneseEnglish
Contact Information
- TEL
- +81-3-5220-1824
- FAX
- +81-3-5220-1724
Practice Areas
- International Practice
- Information Technology, Life Sciences and Intellectual Property
- Mergers and Acquisitions
Work Highlights
- Represented Kubota in connection with its acquisition of a majority stake of Escorts Limited (November 2021)
Yohei Koyama：Awards
- Awards
- Yohei Koyama listed in The International A-List 2024
- Awards
- The Best Lawyers in Japan™ and Best Lawyers: Ones to Watch in Japan™ (2025 edition)
- Awards
- Yohei Koyama listed in The International A-List 2023
Yohei Koyama：News
- Firm News
- Nine new partners, one foreign law partner and three of counsels
- Media
- Comments from Yohei Koyama were published on THE WALL STREET JOURNAL Website
- Firm News
- Five associates become partners or of counsels in January
Yohei Koyama：Newsletters
Yohei Koyama：Seminars
- Apr. 26, 2023External Seminars
- "KEY LEGAL ISSUES IN DEAL MAKING"
- Dec. 8, 2022External Seminars
- "Opportunities in Indian energy sector | Overview of regulatory and dispute resolution aspects in India | Recent developments in Japan-India relations"
- Sep. 2, 2022External Seminars
- "Seminar on Opportunities for Large Companies/SMEs in India – business and legal insights"
Yohei Koyama：Publications
- Book
- "Handbook for Rules Against Bribery of Foreign Public Officials for Companies Expanding Overseas (2nd Edition)"
- Book
- "M&A Rules in Emerging Asian Countries - Fourth edition"
- Book Article
- "Real Estate Legislation in India - Theory and Practice: From General Legal Systems Related to Real Estate to Projects Including Joint Ventures and M&A"
Yohei Koyama：Other
Background
- Kyoto University (LL.B., 2001)
- Cornell Law School (LL.M., 2008)
- Alston & Bird, Atlanta (2008-2009)
- AZB & Partners, Delhi (2011)
- VILAF-Hong Duc, Hanoi (2011)
Major Activities
- Observer (India delegate) for "Review Committee on International Standards for Personal Information Protection Systems," Consumer Affairs Agency (2012-)
- Lecturer at the Hitotsubashi University Graduate School of International Corporate Strategy (in charge of the third lecture on international legal strategy in 2012)
Bar Admissions
admitted in Japan, 2002; New York, 2009
Daini Tokyo Bar Association