The Legal 500

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The firm

SUGIMURA International Patent & Trademark Attorneys is a leading intellectual property law firm in Japan, founded in 1923. SUGIMURA has earned a reputation for high quality and is repeatedly ranked among the top Japanese patent and trademark firms. It has offices in Japan and the US, providing convenient IP services to both domestic and international clients.

Areas of practice

SUGIMURA represents Japanese and international clients in patent, design, trademark prosecution, trial and appeal proceedings before the JPO, counseling and opinion work, due diligence, and unfair competition matters in Japan. The firm’s clientele ranges from single inventors and start-ups, to well established academic institutions and multinational corporations from all sectors of the global economy.

SUGIMURA delivers results-oriented solutions and offers customised services tailored to clients’ needs. It ensures close collaboration among its practice groups in order to provide clients with comprehensive multidisciplinary patent and trademark protection across industry sectors. SUGIMURA’s attorneys combine legal insight, technical expertise, and business acumen to deliver practical solutions and strategies for intellectual property protection in Japan.

SUGIMURA has earned an international reputation for quality in Japanese IP prosecution and is repeatedly ranked among top Japanese patent and trademark law firms. Its patent and trademark attorneys possess expertise in virtually every technology sector.They are not only skilled in the nuances of intellectual property laws and regulations; they are also technical experts in virtually every industry. SUGIMURA’s attorneys have years of experience working in-house at major corporations as researchers, engineers, and IP professionals. SUGIMURA also has attorneys who have served for decades at the Japanese Patent Office (JPO). This combination of expertise allows it to understand the perspectives of corporations and patentees as well as the JPO, enabling it to deliver practical and effective solutions to further client’s business objectives.

In order to better serve its foreign clients, SUGIMURA established a regional office in Palo Alto, California. The Palo Alto office offers clients the personalised care of a boutique firm while drawing on both the resources of its Tokyo office and the strength of its global network. At its regional office, SUGIMURA is able to meet with clients regularly to develop intellectual property strategies that meet client’s business objectives in Japan, discuss intricate technical and legal issues, and offer tutorials on Japanese patent practice. SUGIMURA’s Palo Alto and Tokyo offices work together seamlessly to deliver tailored solutions and around-the-clock service.

SUGIMURA attorneys are active in their community, presenting on topics regarding Japanese IP practice at in-house client presentations, patent seminars, and law school classes. The firm also publishes articles on Japanese IP practice in magazines distributed around the world.


Other offices Palo Alto

Japan Patent Attorneys Association (JPAA)
Japan Intellectual Property Association (JIPA)
Associaion Internationale pour la Protections de la Propriété Intellectuelle (AIPPI)
Asian Patent Attorneys Association (APAA)
Fédération Internationale de Conseils en Propriété Industrielle (FICPI)
International Trademark Association (INTA)

Number of lawyers 51

Above material supplied by SUGIMURA International Patent and Trademark Attorneys.

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