About Us



CoTech International is a Japanese IP boutique law firm located in Nagoya, Japan, spun off from CoTech International, Inc. in 2003 based on CoTech's expertise in international IP prosecution, research, licensing, and consulting in the last 30 years.
Since its inception, CoTech International has been offering various services as the leader in intellectual property services. It is becoming increasingly important for companies to obtain strong IPs in order to stay competitive. We would like to help you with your IP strategy from a global perspective.
CoTech International promises you the highest quality of legal representation and consultation in any IP matters.

About CoTech International, Inc.

CoTech International, Inc. was established in 1985. Since then, we have been a leader in IP logistics, helping our Japanese clients to file patent and trademark applications in more than 60 different countries around the world.
With 30 years of experience, we proudly continue to provide the excellent service that our clients have come to expect.


CoTech International excels in IP law including patents, utility models, designs, trademarks infringement clams and cases, litigation support, advanced technology research and evaluation, and other IP applications and IP right protection.

-Specialty Fields

Electronics, electrics, mechanics, information, communication, physics, chemistry, controls, mathematics, bio-technology, trademarks, design registrations.
We welcome any IP-related issues not limited to topics raised above.

-International applications / transactions

International applications / transactions are handled in partnership with CoTech International, Inc. which has 30-year experience in international IP consulting and a worldwide network. We are collaborating with law firms in more than 60 countries.


We also provide complete translation services by affiliating with top rank translators.

We hope that CoTech International can play influential roles in establishing technological ties between Japan and the world.