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Are you familiar with Y02/Y04S?

If you are a user of the Y02/Y04S classification scheme for climate change mitigation technologies, we invite you to participate in a short survey. It will only take a few minutes of your time and your answers will help us to improve the scheme further.
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Searching in databases - Japan

Désolé. Actuellement, cette page n'existe pas en français.

The Japan Patent Office has launched a new platform for patent information on 23 March 2015, called Japan Platform for Patent Information (J-PlatPat). Below you find search guides, which explain how to use this platform for your convenience.

The JPO's Industrial Property Digital Library (IPDL) is no longer be accessible. Users will be redirected automatically to the new JP-PlatPat (

Number search and document retrieval

English machine translation

Legal status information


Searching designs

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