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Sun East® IP Firm offers a full range of intellectual property services, including trademarks, designs, patents, utility models, domain names and copyright. Founded by expert attorneys with many years’ experience in Japanese IP law and practice, we provide a high-quality service and optimal outcomes.

1. Highly Experienced in Trademark and Patent Prosecution

Sun East IP Firm’s attorneys have successfully registered over 4000 trademark and patent applications in Japan.

2. Competitive Pricing without Compromising Quality of Services

Sun East IP Firm maintains exceptional registration rates while keeping fees 25-30% lower than the Japanese average.

3. Timely and Stress Free Management of Complex Issues

Our domestic and overseas clients enjoy stress-free management of their IP needs in Japan, with access to services six days a week and reports provided each step of the way.

Awards & Achievements

Managing Partner and lead trademark attorney Chikako Mori, who has remained among The World’s Leading Trademark Professionals for numerous years and was listed bronze for Japanese prosecution and strategy by World Trademark Review 1000 in 2022 and 2023 consecutively, is described as an “efficient, responsive, practical and straightforward” attorney and “comes highly recommended for her trademark counselling and protection services”.
Japan Top TM Professionals World Trademark Review

Tokyo Office

4F, Moriichi Bldg., 1-3-2, Kyobashi, Chuo-ku, Tokyo 104-0031, Japan


E-mail to Sun East



International Trademark Association (INTA)
Japan Patent Attorneys Association (JPAA)
Tokyo Metropolitan Intellectual Property Center (TMIPC)
Pharmaceutical Trade Marks Group (PTMG)