We serve to our local and international clients covering all aspects of trademark related issues including prosecution, portfolio management, anti-counterfeiting, enforcement and advice. Our attorneys are authorized to act before the Japan Patent Office, IP High Court, WIPO, and the Customs in Japan. We are committed to providing high quality legal services to our clients at reasonable costs. Our legal comments from commercial perspective have been greatly appreciated by many Japanese and overseas companies.

We have experiences in wide variety of industries, such as automotive, electronic, consumer products, foods and beverages, pharmaceuticals, apparel, entertainment, financial, etc. Our team has been expanding based on the support of a large number of Japanese large companies.


Chikako Hashimoto
Chief Manager, Trademark Department

Chikako Hashimoto is an experienced attorney with more than 25 years of career in trademark prosecution, trademark enforcement, anti-counterfeiting and unfair competition matters. She obtained BA in Law from Keio University. After qualified as a Japanese Patent and Trademark Attorney in 1987, she joined one of the most prestigious IP boutique in Tokyo and worked as a partner since 2001. She was admitted as a qualified IP litigator in 2004. She also worked at the Tokyo office of an international law firm from 2014 to 2020.

Chikako has a variety of experience in handling trademark portfolio of Japanese and Western large companies in wide range of industries such as food and beverage, pharmaceutical, automobile, apparel, electronics, finance, entertainment, etc. She won many important cases at the IP High Court some of which were reported in the newspapers. She has also been handling a large number of disputes, e.g., oppositions, invalidity and cancellation actions, and infringement cases.

She has been playing a role of an external advisor of the Tokyo Customs for more than six years and handling border seizure cases by herself.

She is a member of LES Japan (Vice President) and LES Asia Pacific (Vice Chair), Japan Trademark Association (Board Member), Japan Patent Attorneys Association, and AIPPI.

She is a frequent Lecturer at various universities and organizations, such as Tokyo University of Science (2013-2016), Kanazawa Institute of Technology (2008-2014 ), Aoyama Gakuin University, Graduate school, Law Research, Business major course (2006-2014 ), ETH (2008), Japan Patent Attorneys Association (Lectures for members and training for new members).

2020 Recommended in Intellectual Property Legal 500 Asia-Pacific
2019-2020 WTR 1000 Top Trademark Professionals (Japan) Enforcement & Prosecution (Silver)
2019 WTR Global Leaders (Japan)

“The Latest Decision on Parallel Import in Russia – The interpretation of the range of protection admitted to the right holders” (Intellectual Property Management, VOL.69 NO.1), “Anti-Counterfeiting in the Middle East” (Intellectual Property Management, Vol.62、No.9), “How the Similar Group Codes of Goods and Services work under Trademark Practice” (Intellectual Property Management, Vol.67、No.3), “The Principle of Trademark Function” (Intellectual Property Management, Vol. 65、No.1), “Color per se mark – How it can be designated in an application” (Patent 68(4)), "Comprehensible Intellectual Property" (CIPIC Journal 1994), "Consulting on Trademark Issues" (Seirin Shoin), "Border Control of IP infringing goods at the Customs" (Intellectual Property Management No. 709), "3D Shape and the Border Control" (CIPIC Journal Vol. 202)

Working Languages: Japanese, English