Shigeki Okatani


Shigeki Okatani

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Practice Areas

Shigeki Okatani:Awards

The Best Lawyers in Japan™ and Best Lawyers: Ones to Watch in Japan™ (2025 edition)
Top rankings received from The Legal 500 Asia Pacific 2024
Top rankings received from Chambers Asia-Pacific 2024

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Shigeki Okatani:News

Firm News
Six new partners and three of counsels

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Shigeki Okatani:Legal Topics

Shigeki Okatani:Newsletters

Fundamental Reform of the Regulatory Framework for Renewable Energy in Japan DownloadPDF
New Act to Promote Offshore Wind Power in Japan’s Territorial Waters DownloadPDF
New bill to promote offshore wind power DownloadPDF

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Shigeki Okatani:Seminars

Jul. 4, 2017External Seminars
"Comparative Analysis of the Legal Framework and Market Practice for Infrastructure/PPP in Australia/UK and in Japan"

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Shigeki Okatani:Publications

"Legal Issues and Corporate Governance on Sustainability"
"Chambers Global Practice Guide Alternative Energy & Power 2023 - Japan Trends and Developments"
"Practical Guide to Contracts for Power Plant Projects [2nd ed.]"

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Shigeki Okatani:Other


  • The University of Tokyo (LL.B., 2002)
  • Seconded to the Ministry of Economy, Trade and Industry, Government of Japan (2005-2006)
  • University of Virginia School of Law (LL.M., 2009)
  • With Clayton Utz, Brisbane, Australia (2009-2010)
  • Seconded to IB Products Group, Mizuho Securities Co., Ltd. (2010-2011)

Major Activities

  • Member of Subcommittee of Financial Instrument and Exchange Law, Securitization Forum of Japan (2006-2007)
  • Member of Subcommittee of Trust Law and Trust Business Law, Securitization Forum of Japan (2006-2007)
  •  Member of Committee of Accounting and Tax, Securitization Forum of Japan (2006-2008)
  •  Member of Working Group of Financial Regulation, Securitization Forum of Japan (2007-2008)

Bar Admissions

admitted in Japan, 2003; New York, 2011
Daini-Tokyo Bar Association
New York State Bar Association