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• Mergers and Acquisitions
  • Mergers and Acquisitions/Reorganizations
  • Private Equity
  • Venture Capital/Start-ups
• Corporate Governance
• Finance
  • Capital Markets
  • LBO Finance
• Regulatory/Regulated Transactions
  • Automobiles, Aviation and Ships
• Crisis Management
  • Unfair Trading (Insider Trading, etc.)

Sep. 12, 2024 Awards

Top rankings received from asialaw 2024

Sep. 12, 2024 Awards

Top rankings received from IFLR1000 2024

Apr. 18, 2024 Awards

The Best Lawyers in Japan™ and Best Lawyers: Ones to Watch in Japan™ (2025 edition)

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Jan. 15, 2021 Works

MHM advised on financing for a biotech venture company utilizing a value securitization scheme

Dec. 1, 2018 Public Service

Koji Toshima became a member of Study Group on New Mobility as a Service Brought About by IoT and AI, Ministry of Economy, Trade

Mar. 1, 2018 Public Service

Koji Toshima became the advisor for Japan Roof Drone Association

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2018/1

Update: Japanese HFT Regulations to Take Effect in April 2018 DownloadPDF

2017/11

The new High Frequency Trading (HFT) regulations introduced by the amendment to the law DownloadPDF

2015/10
Vol. 5

Amendments of the Civil Aeronautics Act to Introduce the New Rules Restricting UAVs DownloadPDF

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Mar. 19, 2019External Seminars

"Drone Business and Regulations"

Nov. 16, 2010MHM Seminars

MHM Seminar

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Book

"Insider Trading (Second Edition)"

Article

"International Comparative Legal Guide to: Aviation Law 2024 - Regulations on Drone Flights in Japan"

Book

"Regulations on Autonomous Cars and MaaS Businesses (2nd ed.)"

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• The University of Tokyo (LL.B.,1998)
• Columbia University School of Law (LL.M., 2005)
• Sullivan & Cromwell (2005-2006)
• seconded to Tokyo Stock Exchange, Inc., Listing Department (2006-2007)