Koji Toshima


Koji Toshima

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Practice Areas

Koji Toshima:Awards

Top Rankings received from asialaw 2023, the definitive guide to Asia's leading law firms and lawyers
Top Rankings Received from IFLR1000’s 32nd edition
Lawyers from Mori Hamada & Matsumoto were included in the 13th edition of The Best Lawyers in Japan™ and the inaugural Best Lawyers: Ones to Watch in Japan™

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Koji Toshima:News

Public Service
MHM advised on financing for a biotech venture company utilizing a value securitization scheme
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
Public Service
Koji Toshima became the advisor for Japan Roof Drone Association

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Koji Toshima:Legal Topics

Koji Toshima:Newsletters

Update: Japanese HFT Regulations to Take Effect in April 2018 DownloadPDF
The new High Frequency Trading (HFT) regulations introduced by the amendment to the law DownloadPDF
Amendments of the Civil Aeronautics Act to Introduce the New Rules Restricting UAVs DownloadPDF

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Koji Toshima:Seminars

Mar. 19, 2019External Seminars
"Drone Business and Regulations"
Nov. 16, 2010MHM Seminars
MHM Seminar

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Koji Toshima:Publications

Magazine Article
”Advancements Toward Realizing Autonomous Driving and Spreading New Mobility - Amendments to the Road Traffic Act”
"Practical Issues of the Corporation Act New Series 9: Corporate Reorganization (3rd ed.)"
"Getting the Deal Through - Financial Services M&A 2022 - Japan Chapter"

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Koji Toshima:Research Reports

Koji Toshima:Other


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

Major Activities

  • Member of International Bar Association (2009-)
  • Advisor of Unmanned Aircraft System Survey Council (2017-)
  • Advisor for Japan Roof Drone Association (2018-)
  • Member of Study Group on New Mobility as a Service Brought About by IoT and AI, Ministry of Economy, Trade and Industry (2018-)

Practice Group

  • M&A Practice Group
  • AI/IoT Practice Group

Bar Admissions

admitted in Japan, 2000; New York, 2006
Daini Tokyo Bar Association