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Atsumi & Sakai
Damintha Pathirana
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Damintha Pathirana

Partner

Main Practices
Corporate Disputes / General Corporate Legal Affairs / Establishing Companies and Businesses for Startups / M&A, Corporate Reorganization, and Joint Ventures / Corporate Governance / Inward Investment / Arbitration, Conciliation, and Other ADR (International) / Labor and Employment Law / Termination of Employment / Labor Disputes / Offshore Employment and Labor Laws / Anti-bribery (Foreign) / Real Estate Transactions / General Civil Litigation / Intellectual Property Protection and Disputes / Broadcasting / Advertising and Marketing / Music / Sport / Film / E-sports / Brand/Rights Protection / Sports and Betting / Sport Arbitration / Governance and Integrity in Sport
Languages
Sinhala / English / Japanese
Office
Tokyo
Qualifications
Registered Foreign Lawyer in Japan (The Laws of the Democratic Socialist Republic of Sri Lanka) (2022)
Admitted in Sri Lanka 2008
Commissioner for Oaths, Company Secretary and Notary Public (Sri Lanka Law)
Contact

Overview

Publications & Seminars

Awards

Registration in Japan

Registered Foreign Lawyer (The Laws of the Democratic Socialist Republic of Sri Lanka) (2022)

Admitted

Sri Lanka - 2008

Bar Association

Daini Tokyo Bar Association
Bar Association of Sri Lanka

Education

University of Colombo (LL.B., 2007)
Sri Lanka Law College (Attorney-at-Law, 2008)
Graduate Studies of University of Colombo (PgDip in International Human Rights Law, 2013)
Yokohama National University (Research student for Ph.D.in International Law, 2016)
Hitotsubashi University (Master of Business Law, 2018)

Background

Paul Rathnayeka Associates in Sri Lanka, Legal Trainee (September 2007-March 2008)
Demasu Property Developments (Pvt) Ltd-Sri Lanka, Legal Trainee (March 2008-December 2008)
Junior counsel to Senior Counsel Mr. Samantha Vithana (December 2008-July 2010)
Sri Lanka Navy, Legal Officer (July 2010-November 2013)
Mori Hamada & Matsumoto, Foreign Legal Trainee (June 2016)
Oh-Ebashi LPC & Partners, Internship (May 2018)
Kojima Law Offices, Foreign Attorney (March 2022-February 2023)
DP Foreign Law Office, Founder & Managing Partner (February 2023-March 2024)

Newsletters

Seminars

  • "How to Set Up Your Business in Japan: A Step-by-Step Guide," hosted by Atsumi & Sakai, July 10, 2025 
  • “Sri Lanka Energy: Your Next Investment Horizon,” hosted by Atsumi & Sakai, June 5, 2025
  • “Doing Business in Sri Lanka：First Steps for Japanese Companies Entering Sri Lanka,” hosted by Atsumi & Sakai and supported by Japan Institute for Overseas Investment (JOI), November 27, 2024