Awards
Yuko Tamai is a Partner at Nagashima Ohno & Tsunematsu. She represents foreign and domestic clients in various types of corporate transactions, including mergers and acquisitions, joint ventures, and licensing transactions. She has extensive experience in handling large-scale alliance deals, public acquisitions, and carve-out transactions. She also provides strategic advice on shareholder activism and unsolicited acquisition proposals as well as corporate governance, internal control issues, and crisis management. She is a member of the Board of Councilors of the Association of Certified Fraud Examiners Japan (ACFE Japan) and is also qualified as a Certified Fraud Examiner (CFE).
Moreover, she has served as a member of numerous study groups or committees of ministries and other governmental agencies in Japan, such as the Study Group for Japanese Companies’ Cross-border M&As at the Ministry of Economy, Trade and Industry (METI) (2017-2018), the Fair M&A Study Group at METI (2018-2019), the Subcommittee on Certified Public Accountants System at the Financial System Council (2021-2022), the Fair Acquisition Study Group at METI (2022-2023), and the Working Group on Tender Offer Rule and Large Shareholding Reporting Rule of the Financial System Council (2023).
Practice Areas
Education/Professional Experience
- 1989
- The University of Tokyo (LL.B.)
- 1994 -
- Nagashima & Ohno (currently Nagashima Ohno & Tsunematsu)
- 2000
- Harvard Law School (LL.M.)
- 2000 - 2001
- Covington & Burling LLP, Washington, D.C.
- 2003 - present
- Partner, Nagashima Ohno & Tsunematsu
- 2015 - 2022
- External Audit & Supervisory Board Member of Japan Bank for International Cooperation (JBIC)
- 2017 - 2021
- External Director of Mitsui Sugar Co., Ltd. (currently Mitsui DM Sugar Co., Ltd.)
- 2019 - present
- Part-time Commissioner of Certified Public Accountants and Auditing Oversight Board (CPAAOB)
- 2022 - present
- External Audit & Supervisory Board Member of MITSUI & CO., LTD.
- 2025 - present
- Outside Audit & Supervisory Board Member of Sekisui House, Ltd.
Awards
Seminars
-
April 10, 2025 (Thu) 14:30 - 18:00New Developments on Transactions involving Control of Listed Companies
- Yuko Tamai
- Ryo Okubo
- Yutaka Kuroda
- Yasuhiro Kasahara
Hilton Osaka
- Corporate
- Corporate Governance
- M&A
- Mergers & Acquisitions
-
December 12, 2024 (Thu) 14:30 - 18:00New Developments on Transactions involving Control of Listed Companies
- Yuko Tamai
- Yutaka Kuroda
- Yasuhiro Kasahara
JP TOWER Hall & Conference
- Corporate
- Corporate Governance
- M&A
- Mergers & Acquisitions
-
April 19, 2024 (Fri) 14:00 - 17:00Seminar in Osaka: Emerging Trends in Corporate Takeovers for Management Control – Corporate Strategy and Considerations in Light of the “Guidelines for Corporate Takeovers”
- Yuko Tamai
- Yutaka Kuroda
- Tatsuya Okano
Hilton Osaka
- Corporate
- Corporate Governance
- M&A
- Mergers & Acquisitions
-
December 14, 2023 (Thu) 14:30 - 18:00Future Prospects of Corporate Takeovers for Management Control – Corporate Strategy and Practice under the “Guidelines for Corporate Takeovers”
- Yuko Tamai
- Yutaka Kuroda
- Tatsuya Okano
JP TOWER Hall & Conference
- Corporate
- Corporate Governance
- M&A
- Mergers & Acquisitions
Publications
-
Books
“Merger Handbook [4th Edition]”
Shojihomu Co., Ltd. (September 2019)
Yuko Tamai (Editor-in-Chief), Kayo Takigawa, Kei Okubo (Editors), Tomohiko Iwasaki, Kaoru Hattori, Takashi Saida (Co-authors)
- M&A
- Mergers & Acquisitions
-
Books
“Forefront of M&A Risk Management”
Shojihomu Co., Ltd. (March 2018)
Kayo Takigawa (Author and Editor), Yuko Tamai, Tomohiko Iwasaki, Kei Okubo, Tomohiro Okawa, Wataru Matsumoto (Co-author), Mayuko Tsujimoto, Oki Osawa, Yuzuka Oyamada, Tomohiro Sekiguchi (Writing Collaborator)
- M&A
- Mergers & Acquisitions
- Global Practice
-
Books
“Advanced Corporate Law”
Shojihomu Co., Ltd. (January 2016)
Edited by Nagashima Ohno & Tsunematsu, Hiroyuki Ishizuka, Hiroshi Mitoma, Yuko Tamai, Tomohiko Iwasaki, Masaki Konishi, Kayo Takigawa, Nobuyoshi Inujima, Masatsura Kadota, Tsuyoshi Shimizu, Soichiro Fujiwara, Ryo Okubo (Co-authors), others
- Corporate
- General Corporate
-
Books
“Merger Handbook [3rd Edition]”
Shojihomu Co., Ltd. (October 2015)
Yuko Tamai (Editor-in-Chief), Kayo Takigawa, Kei Okubo (Editors), Tomohiko Iwasaki, Kaoru Hattori, Takashi Saida (Co-authors), Nozomu Takashima, Yuki Matsumiya (Writing Collaborators)
- M&A
- Mergers & Acquisitions