Akasaka International Law, Patent & Accounting Office.

Masahiko Sumida

Masahiko Sumida

Masahiko Sumida, an expert international law attorney in Japan, provides trusted patent and corporate law services. With Japan-France legal expertise and multilingual support, he resolves complex legal challenges efficiently.

 

Masahiko SumidaAdvisor, Attorney-at-Law (Currently a consultant at Ailaw Law Office, nearby for immediate support)

Professional Background

Masahiko Sumida is a seasoned international law attorney in Japan with expertise in patent and corporate law. Below is a detailed overview of his career milestones, publications, and affiliations, optimized for clarity and search intent.

Biography

Year Milestone Keyword Context
1967 Graduated from Waseda University, Faculty of Law; joined Japan’s Ministry of Foreign Affairs; studied law and French at Nancy and Besançon Universities, France (2 years).
1969 Assigned to the Japanese Embassy in Paris.
1972 Worked at the Economic Cooperation Bureau, Ministry of Foreign Affairs.
1979 Trained at the Supreme Court Judicial Training Institute.
1981 Registered as an attorney-at-law with the Tokyo Bar Association; joined Tokyo Aoyama Law Office (Baker & McKenzie). International law attorney Japan, corporate law
1984 Registered as a patent attorney; founded Sumida International Law and Patent Office. Patent attorney
1986 Renamed to Akasaka International Law, Patent and Accounting Office; appointed director.
2004 Represented trustee in a corporate reorganization case at Tokyo District Court before Moulins Commercial Court, France. Corporate law, Japan-France legal services
2006 Won a trademark case for “Anne of Green Gables” at the Intellectual Property High Court for Prince Edward Island, Canada. Patent attorney, international law attorney Japan

Main Publications

Masahiko Sumida has contributed to key publications in international and corporate law, showcasing his expertise:

  1. ① Co-authored Droit International de l’Homme d’Affaires (International Law for Businessmen) (Dalloz, France).
  2. ② Authored legal sections of Japon – Juridique, Fiscal, Social (Guide to Japanese Investment-Related Laws and Tax Laws) (Francis Lefebvre, France).

Lectures and Presentations

Year Event Keyword Context
1996 Lectured (in French) at the Japan-Quebec Business Forum, Canada. Japan-France legal services
1997 Lectured on contract law (in French) for “Japan Year in France” in Paris. Corporate law, Japan-France legal services
1998 Lectured (in Japanese) at the Japan-France Media Exchange Association (TMF). Japan-France legal services
2013 Lectured at Keio University Law School (Graduate School of Law). International law attorney Japan

Affiliations and Positions

Sumida holds prestigious roles, enhancing his authority in international law:

  1. ① Honorary President, Kiyoko Goto and Paul Bourdarie Cancer Foundation.
  2. ② Former Director, Japan-Algeria Association (resigned 2019).
  3. ③ Auditor, Japan-France Media Exchange Association (TMF).
  4. ④ Member, International Exchange Committee, Japan Federation of Bar Associations.

Languages

  • Japanese, English, French

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