Japan
Supported patent filings

PCT National Phase Entry
Deadline: 30 months
Power of Attorney: No
Assignments: No
Language: Japanese
Translation Extension: Yes*
Excess Claims Fee: No
Examination Request: Optional at filing or deferred
Country Notes: * The Japanese translation can be submitted within two months from the filing date.
Direct Filing
Deadline: 12 months
Power of Attorney: No
Assignments: No
Language: Japanese
Translation Extension: Yes*
Excess Claims Fee: No
Examination Request: Optional at filing or deferred
Country Notes:

* The Japanese translation can be submitted within two months from the filing date.


• A certified copy of the Priority Document needs to be filed within 16 months from the earliest priority date (with details needed at filing).


• Priority certificate can be omitted if the basic application was filed in the US, EP or KR, or a priority certificate has already been lodged with the USPTO or EPO. A PCT/SB/39 document must be filed with the USPTO for the US data to be usable.

Recommended Agents

Aronova S.A.

European Validation

Aronova S.A. (formerly: Pronovem Luxembourg S.A.) is a private IP practice located in Belval (Esch-sur-Alzette), which is the home of several research institutes, start-up companies and the main site of the University of Luxembourg.

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TMI Associates

PCT National Phase Entry

Direct Filing

TMI was established in 1990. The firm’s aim has been to create a unique law practice specializing in intellectual property rights offering unrivalled experience and results. TMI specialisms include patents, utility models, designs, trademarks, and copyrights.

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ONDA TECHNO Intl. Patent Attys.

PCT National Phase Entry

Direct Filing

ONDA TECHNO, a full-service intellectual property firm, has served clients worldwide since 1968. Our team includes highly educated engineers and legal specialists. 

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