Awards
Hiroshi Mitoma’s practice focuses on M&A and corporate transactions, including rehabilitation of troubled companies, investment by private equity funds, joint ventures, takeover defenses, corporate governance and crisis management. He regularly represents domestic and foreign clients.
Practice Areas
Education/Professional Experience
- 1991
- The University of Tokyo (LL.B.)
- 1993 -
- Nagashima & Ohno (currently Nagashima Ohno & Tsunematsu)
- 1998
- Harvard Law School (LL.M.)
- 1998 - 1999
- Cleary, Gottlieb, Steen & Hamilton LLP, New York
- 2001 - present
- Partner, Nagashima Ohno & Tsunematsu
- 2004 - 2007
- Associate Professor, University of Tokyo Graduate Schools for Law and Politics
Awards
Seminars
-
May 20, 2026 (Wed) 14:30 - 18:00Staying Ahead of Escalating Activism: Governance Measures and the Evolving Landscape of Shareholder Proposals
- Hiroshi Mitoma
- Yasuhiro Kasahara
- Kosuke Hamaguchi
Hilton Osaka
- M&A
- Mergers & Acquisitions
-
December 9, 2025 (Tue) 15:00 - 18:00Staying Ahead of Escalating Activism: Governance Measures and the Evolving Landscape of Shareholder Proposals
- Hiroshi Mitoma
- Yasuhiro Kasahara
- Kosuke Hamaguchi
JP TOWER Hall & Conference
- M&A
- Mergers & Acquisitions
-
March 16, 2023 (Thu) 15:00 - 16:00Trends and Practical Considerations on the Rapid Increase in the use of Representations and Warranty Insurance in Domestic and Overseas M&A
- Hiroshi Mitoma
- Wataru Matsumoto
- Michio Hashimoto (Marsh Japan)
Online (Live & On-Demand)
- Corporate
- M&A
- Mergers & Acquisitions
-
March 27, 2023 (Mon) -Q&A on Representations and Warranty Insurance (Part 2)
- Hiroshi Mitoma
- Wataru Matsumoto
- Michio Hashimoto (Marsh Japan)
- Corporate
- M&A
- Mergers & Acquisitions
Publications
-
Articles
Chambers Global Practice Guides Corporate Governance 2026 Japan – Law & Practice
(June 2026)
Hiroshi Mitoma, Tomohiko Iwasaki, Kosuke Hamaguchi, Akira Komatsu (Co-author)
- Corporate
- Corporate Governance
-
Articles
Chambers Global Practice Guides Corporate Governance 2025 Japan – Law & Practice
(June 2025)
Hiroshi Mitoma, Tomohiko Iwasaki, Kosuke Hamaguchi (Co-author)
- Corporate
- Corporate Governance
-
Articles
Chambers Global Practice Guides Corporate Governance 2024 Japan – Law & Practice
(June 2024)
Hiroshi Mitoma, Tomohiko Iwasaki, Kosuke Hamaguchi (Co-author)
- Corporate
- Corporate Governance
-
Articles
Chambers Global Practice Guides Corporate Governance 2023 Japan – Law & Practice
(June 2023)
Hiroshi Mitoma, Tomohiko Iwasaki, Kosuke Hamaguchi (Co-author)
- Corporate
- Corporate Governance
