SOEI Patent & Law Firm is a leading Japanese intellectual property practice focused on patents, designs and trademarks, and it serves engineers, inventors and designers who create valuable IP. The firm operates as a Japanese patent, trademark, design and law firm with a head office in Tokyo and additional offices in Kyoto and Fukuoka, and it maintains a global network that includes Washington DC and Bangkok to support clients worldwide.

SOEI combines attorneys-at-law and patent attorneys to deliver integrated IP services across the life cycle, including patent strategy and prosecution before the Japan Patent Office, handling official actions, and managing designs and trademarks. The firm emphasizes close collaboration among its professionals to cover all aspects of IP rights and to provide clear guidance through complex proceedings.

Beyond IP, the firm provides corporate and commercial legal services to help clients integrate IP protection with business strategies, including advising on antimonopoly law, customs and contract law, as well as supporting corporate formation and other business activities for new ventures.

About Soei Kokusai Tokkyo Law Office

Founded in 1986

315 people in their team


Practice areas
Intellectual Property
Corporate & Commercial

Languages spoken
English

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Practice areas

Intellectual Property

SOEI offers comprehensive IP services focused on protecting inventions, designs and goodwill. The firm provides patent strategy and filing before the Japan Patent Office, responds to Office Actions, and develops design strategies to prevent imitation, while integrating trademark protection and IP rights management as part of a cohesive strategy for clients in diverse technology fields. Attorneys-at-law and patent attorneys collaborate to deliver end-to-end IP solutions, including searches for prior art and strategic utilization of IP rights in negotiations and litigation.

Copyright
Patent
Trademark
Art & Cultural Property Law

Corporate & Commercial

SOEI delivers corporate and commercial legal services that support business activities in Japan related to IP rights, including advisory work on antimonopoly law, customs law and contract law. The firm assists with corporate formation and organizational planning, aligning IP protection with corporate strategy and everyday business operations to help clients grow and protect their commercial interests in Japan and abroad.

Administrative
Admiralty & Maritime
Agriculture
Antitrust
Aviation
Business Registration
Contract
Due Diligence
Franchising
Gaming
Government Contract
Licensing
Merger & Acquisition
Transportation
Venture Capital
Cannabis Law
Nonprofit & Charitable Organizations
International Trade Law
Government Relations & Lobbying
Private Equity
Corporate Governance
Sanctions & Export Controls

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