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Takehiro Oishi

Partner / Attorney at Law

Osaka Office

Major Practice Areas
Corporate / Restructuring and Insolvency / Mergers & Acquisitions / Dispute Resolution / Financial Regulation/Financial Compliance / Healthcare & Beauty
Other Practice Areas
Risk Management and Compliance / Employment and Labor / Insurance


Takehiro Oishi has been mainly handling corporate legal affairs, and his clients cover a wide variety of businesses such as manufacturing, healthcare, education, welfare, IT, finance and other service industries.

Mr. Oishi works to maximize the interests of his clients in negotiations and legal proceedings, such as litigation, and also as legal advisor in contract negotiations and corporate reorganizations. Moreover, he provides a wide range of advisory services relating to corporate governance, including guidance on general shareholders’ meetings and support in making business judgments.

Work Highlights

  • Matters relating to corporate governance/compliance of leading Japanese enterprises
  • Matters relating to corporate acquisitions by leading Japanese enterprises
  • Corporate scandal investigation of a leading Japanese enterprise
  • Restitution of unjust enrichment claims between financial institutions
  • Lawsuit with respect to disputes over supremacy of Japanese enterprises

Education & Professional Career

Jan 2009 – PresentKitahama Partners, Partner
Oct 2002Graduated from the Legal Training and Research Institute of the Supreme Court of Japan; Admitted to practice in Japan; Joined Kitahama Partners
Mar 2001Kyoto University (LL.B.)

Other Activities

2015 – 2016Member, Legal Affairs Committee, Japan Multicopter Safety Association
2013 – PresentCertified as Support Agent for Business Innovation (Act for Facilitating New Business Activities of Small and Medium-Sized Enterprises, Section 17.1)
2013 – PresentAuditor, KOIZUMI SEIKI CORP.
2010 – 2011Part-time Lecturer, Doshisha Law School
2005 – 2009Adjunct Professor, Kindai University Law School
2005 – 2008Auditor, Toyo Technico Corporation


  • Committee on Measures Against Organized Crime and Unauthorized Practice of Law
  • National Network of Insolvency Attorneys