Provision of Patent Information Using API on a Trial Basis

Since January 2022, we started to provide patent information using API on a trial basis to promote further utilization of patent information retained by the JPO. Users will be able to utilize patent information flexibly using API, which will stimulate intellectual creation cycle. Accordingly, we will expect further promotion of innovation.

Users may acquire patent bibliographic data, details, substantive documents (dispatched documents including Notice of Reasons for Refusal and Decision of Refusal and body text of submitted documents including written amendment and written argument), etc. in Japan using API and will be able to make use of those data to manage their own patents or monitor other's patent applications. Since it is a pilot program to verify the usability of API and user needs, users are required to apply for registration with a limited access. In addition, users may be requested to participate in a survey.

February 7, 2025

Policy Planning and Coordination Department,
Information Technology and Patent Information Management Office,

Terms of Use, etc.

Please refer to Terms of Use and Patent Information Retrieval APIs Handbook posted on the API Information Website for Terms of Use regarding APIs.

• API Information Website (External Link)

How to Use

Where to apply for patent, design and trademark APIs and One Portal Dossier Information API differs:

(1) If you would like to apply for the registration for patent, design and trademark APIs, please fill in the necessary information on the User Registration Form with the consent to the Terms of Use and send it to General Coordination Division (PA0630@jpo.go.jp) by email. In this regard, the email title should be “Application for User Registration for Patent Information Retrieval APIs." The person in charge in the General Coordination Division will contact you for confirmation of user registration later.

• User Registration Form (Word: 35KB)

(2) New applications for user registration for One Portal Dossier Information API terminated as of August 9, 2024 in light of usage status of the API. Information will be notified on this web page upon additional recruitment as required.

[Last updated 7 February 2025]