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With one of the largest legal teams in Japan, we bring a wealth of practical knowledge focused on the singular purpose of providing high quality legal services.

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Our lawyers have authored or co-authored a number of newsletters, articles, books and other materials covering a wide range of legal areas to address the latest legal developments and increasingly diverse and complex issues.

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Tomohiro Koyasu

Tomohiro Koyasu

Partner

Tokyo Office

Tomohiro Koyasu

Tomohiro Koyasu

Partner

Tokyo Office

People
Tomohiro Koyasu

Tomohiro (“Tomo”) Koyasu is a partner at Nagashima Ohno & Tsunematsu. Tomo advises on a broad mix of matters, including acquisition finance and project finance transactions, energy and infrastructure development and acquisition projects, Japanese regulatory implications on commercial and corporate transactions, and various other complex and innovative transactions. Tomo represents a wide range of clients, including financial institutions, private equity sponsors, private companies and corporate borrowers.
He received his LL.B., graduating with outstanding honors distinction, from the University of Tokyo in 2011, and his LL.M. from Harvard Law School in 2018. He worked at the New York office of Simpson Thacher & Bartlett LLP as an international associate in the firm’s banking and credit practice group from 2018 to 2019.

2011
The University of Tokyo (LL.B.)
2012 -
Nagashima Ohno & Tsunematsu
2018
Harvard Law School (LL.M.)
2018 - 2019
Simpson Thacher & Bartlett LLP, New York
2022 - present
Partner, Nagashima Ohno & Tsunematsu
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