Patent Search / Utility model Search

J-PlatPat (Japan Platform for Patent Information) is an official digital library for patents, utility models, designs and trademarks.

Search options

• To search for patents / utility models by number,
  Patent/Utility Model Number Search/OPD (External Link)
• To search for patents / utility models by keywords, classifications, etc.
  Patent/Utility Model Search (External Link)
• To obtain information about classification (FI and F-terms),
  Patent/Utility Model Classification Search (PMGS) (External Link)
• How to use the One Portal Dossier (OPD) service (English)

Note

If the Japanese page appears when you click or tap on the external link, please click or tap on the “English” button in the upper right corner of J-PlatPat to display the English page.

For more information

Searching for Patents, Utility Models, Designs, Trademarks

[Last updated 14 April 2023]

Contact Us

Patent Information Policy Planning Office, General Coordination Division, Japan Patent Office Tel : +81-3-3581-1101 (Ext. 2361) E-mail: PA0630@jpo.go.jp