辻丸国際特許事務所のサイトです

Providing flexible services     

Our patent attorneys provide you with various proposals with due consideration of your business based on deep and accurate understanding of your technologies, brands, designs, etc.



→ Staff

Skills of advanced specialty

We apply our know-how for analyzing technologies and preparing documents in the cutting-edge field of biology and chemistry to a wide range of fields, which enables us to make highly convincing arguments to JPO and courts.

→ Legal Profession

Litigation, Trial, Negotiation

We are willing to undertake infringement litigations/negotiations and invalidation trials. Furthermore, we work closely together with law firms specialized in intellectual property rights in Japan.


→ About us

Providing information     

We open seminars on a regular basis in order to provide information on the latest practice. In addition, we are willing to give talks on topics at your request.




→ Seminar

President’s messege

In recent years, the importance of "protecting and utilizing intellectual properties" has been growing. In many situations, only acquisition of rights or economic value is emphasized. However, we consider it most important to focus on client’s business style based on their history, culture, and philosophy because the method of protecting and utilizing of intellectual properties will vary depending on the business style. We work closely with clients to understand the business style and come up with proposals that meet client’s business needs using our knowledge and expertise daily updated along with experience through litigation and negotiation.