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Taisei Koizumi

Taisei Koizumi

Associate

Tokyo Office

Languages: Japanese, English

Qualifications: 2025, Japan (Daini Tokyo Bar Association)

Education/Professional Experience
Publications

Education/Professional Experience

2024: The University of Tokyo (LL.B.)

2025 - present: Nagashima Ohno & Tsunematsu

Publications

Articles

Chambers Global Practice Guides International Trade 2026 Japan – Law & Practice

(December 2025)

Haseru Roku, Ryosaku Kondo, Taisei Koizumi (Co-author)
- International Trade and Commerce, and Economic Sanctions

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International Trade and Commerce, and Economic Sanctions
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Corporate
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Global Investigations / Crisis Management / Compliance
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- Environmental Disputes
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Labor and Employment
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Real Estate and REITs
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Intellectual Property
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Antitrust and Competition
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Tax
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Pharmaceutical and Healthcare
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- Digital Transformation (DX)
Media/Entertainment and Sport
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Consumer Law
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- Product Safety, Product Compliance, Product Recall and Product Liability
- Consumer Contracts/General Terms and Conditions/e-Commerce
- Consumer Litigation (Class Actions)
International Trade and Commerce, and Economic Sanctions
Global Practice
- Asia and Oceania
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  - Singapore
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  - Vietnam
  - Indonesia
  - Philippines
  - Malaysia
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