Awards
Masaki Mizukoshi is a partner at Nagashima Ohno & Tsunematsu. His practice focuses on a wide range of domestic and cross border M&A related transactions, including private equity investment and acquisition finance. He has extensive experience in various types of commercial transactions, minority investments, and joint venture transactions in the technology field as well as global data compliance and cybersecurity-related matters involving Europe, the U.S. and Asia. He also represents clients in corporate governance and other general corporate matters.
Practice Areas
Education/Professional Experience
- 2009
- Chuo University (LL.B.)
- 2011 -
- Nagashima Ohno & Tsunematsu
- 2017
- Columbia Law School (LL.M., Harlan Fiske Stone Scholar)
- 2017 - 2018
- Covington & Burling LLP, Washington, D.C.
- 2022 - present
- Partner, Nagashima Ohno & Tsunematsu
Awards
Seminars
-
May 22, 2025 (Thu) 15:00 - 18:00NO&T Europe Week – Day3: Compliance, Digital and Tax in Europe
- Kiyoshi Honda
- Shigeki Minami
- Keiji Tonomura
Nagashima Ohno & Tsunematsu Tokyo Office
- Dispute Resolution
- Disputes in Foreign Jurisdictions
-
October 2, 2024 (Wed) 14:30 - 17:20Recent Legal Topics in Technology Field 2024
- Soichiro Fujiwara
- Akemi Suzuki
- Keiji Tonomura
JP TOWER Hall & Conference
- Technology
- Internet/IT Services/Cloud
-
July 9, 2021 (Fri) 15:00 - 16:00Basics of Foreign Investment Regulatory Compliance in View of Recent Developments in Economic Security
- Yoshihiko Matake
- Masaki Mizukoshi
Online (Live & On-Demand)
- Global Investigations / Crisis Management / Compliance
Publications
-
Articles
Lexology Panoramic Next – Private Equity 2025 Japan
(September 2025)
Yasuhiro Kasahara, Masaki Mizukoshi, Yoshitaka Kato (Co-author)
- M&A
- Mergers & Acquisitions
- Private Equity/Venture Capital and Startups
-
Articles
Lexology Panoramic – Technology M&A 2025 Japan
(November 2024)
Keiji Tonomura, Masaki Mizukoshi, Uchu Takehara, Hitomi Kono (Co-author)
- M&A
- Mergers & Acquisitions
- Technology
- Internet/IT Services/Cloud
-
Articles
Lexology Panoramic Next – Private Equity 2024 Japan
(October 2024)
Yasuhiro Kasahara, Masaki Mizukoshi, Yoshitaka Kato (Co-author)
- M&A
- Mergers & Acquisitions
- Private Equity/Venture Capital and Startups
-
Articles
Lexology Panoramic – Data Protection & Privacy 2025 Japan
(July 2024)
Masaki Mizukoshi, Saaya Shiina (Co-author)
- Data Protection and Privacy