For foreign IP counsel filing PCT international applications into Japan, the national phase entry stage involves precise deadline management, mandatory Japanese translation, and strategic decisions on examination request timing. This complete guide covers the JPO official fees, translation costs, attorney fees, and timeline from entry to grant, written specifically for foreign attorneys and corporate IP managers.
Key Takeaways
PCT (Patent Cooperation Treaty) national phase entry to Japan is the procedural step where a PCT international application enters the Japanese national system for examination and potential grant. Without national phase entry, a PCT application has no effect in Japan after the 30-month deadline. Japan is a major PCT receiving and elected office and one of the top destinations for PCT national phase entries worldwide.
The Japan Patent Office (JPO) is the competent national office that examines and grants Japanese patents. Foreign applicants must be represented by a Japanese-licensed patent attorney (benrishi) for all communications with the JPO.
Japan strictly enforces the 30-month deadline from the earliest priority date. Late entry is not possible except in extremely limited cases (due care standard, restoration). The deadline cannot be extended.
| Item | Requirement | Deadline |
|---|---|---|
| National phase entry petition | Form (Tokugan) | By 30 months from priority |
| Japanese translation of spec, claims, abstract | Mandatory if PCT in non-Japanese | By 32 months (2-month grace) |
| Power of Attorney | Signed authorization | At entry or shortly after |
| Examination request | Separate request + fees | Within 3 years from international filing date |
Deadline strictness: Missing the 30-month deadline forfeits all rights in Japan. Restoration is granted only in exceptional cases under the "due care" standard.
Japanese translation of the specification, claims, drawings (text in figures), and abstract is mandatory. JPO does not accept English-only filings for examination. The translation must be accurate, technical, and legally sound — direct machine translation without review is risky.
At Evorix, we use an AI translation + benrishi review hybrid that combines speed with patent-law-grade accuracy. Translation cost typically ranges from JPY 8 per English source word (volume basis), with quality assurance review included.
Pro tip: Translate the abstract and claims carefully — these set the tone for examination. The detailed description can use slightly more efficient translation, but the claims must reflect every word of the original meaning.
| Item | JPO Fee (JPY) | USD Equivalent (approx) |
|---|---|---|
| National phase entry filing fee | 14,000 | ~$95 |
| Examination request fee (base) | 138,000 | ~$920 |
| Examination request per claim | +4,000 per claim | +$27 per claim |
| Patent registration fee (1–3 yr annuities at grant) | 8,400 base + 800 per claim per year | Variable |
| Translation late surcharge (if past 30m) | 14,000 | ~$95 |
Example: A patent application with 15 claims would incur an examination request fee of JPY 138,000 + (15 × 4,000) = JPY 198,000 (~$1,320). Reducing claims to 10 at entry would save JPY 20,000 (~$135) on examination request alone, plus future annuity savings.
Japanese patent attorney fees vary significantly. At Evorix, our published fees for foreign counsel are designed to be transparent and competitive:
| Service | Fee Range (JPY) | USD Equivalent |
|---|---|---|
| National phase entry handling (basic) | 60,000–120,000 | $400–800 |
| Translation (per English source word) | 8–12 JPY/word | $0.055–0.080/word |
| Examination request filing | 20,000–40,000 | $135–270 |
| Office Action response (per OA) | 120,000–280,000 | $800–1,870 |
| Patent registration & first annuity | 50,000–80,000 | $335–535 |
For a typical PCT national phase entry of a 30-page patent with 15 claims (10,000 source words):
| Phase | Cost (USD approximate) |
|---|---|
| Entry stage (filing + translation + attorney) | $5,800–8,400 |
| Examination request (at entry or later) | $1,320–1,590 |
| Office Action responses (avg 1–2 OAs) | $800–3,740 |
| Grant + first annuity | $640–800 |
| Total to grant | $8,560–14,530 |
Examination request is not automatic in Japan. You must affirmatively request examination within 3 years from the international filing date (NOT priority date). Failure to request results in deemed withdrawal of the application.
Strategic timing options:
Request at entry: Best when the applicant is confident in commercial value and wants the earliest possible grant. Allows PPH if foreign equivalents are allowed.
Delay to 3rd year: Best for portfolio applications where market/technology development needs more time. Preserves option to abandon.
PPH opportunity: If corresponding US, EP, or other PCT-PPH eligible applications have allowable claims, file PPH at examination request to dramatically accelerate examination (often 3–6 months vs. 12–18 months standard).
| Stage | Months from Entry |
|---|---|
| National phase entry | 0 |
| Translation finalized | 0–2 |
| Examination request | 0–24 (your choice within 3 years from PCT filing) |
| First Office Action (standard) | 12–24 from exam request |
| First Office Action (with PPH) | 3–6 from exam request |
| Response to OA | +3 months (60-day deadline + 60-day extension) |
| Allowance / Final rejection | 6–24 months after final response |
| Grant publication | 1–2 months after allowance + 30-day registration fee deadline |
| Typical total: standard | 3–7 years |
| Typical total: PPH | 1–2 years |
Since April 1, 2022, Japan has prohibited multi-multi claims — claims that depend on two or more claims and are themselves depended upon by another multi-dependent claim. This is a critical issue for foreign applicants whose original claim sets (especially European-style) often contain extensive multi-multi structures.
Action required at entry: JPO will issue rejection under Article 36(6)(iv) for multi-multi claims, and all claims depending on a multi-multi claim are not examined on substantive grounds. Restructure claims at national phase entry to avoid this — typically by splitting multi-multi claims into single-dependent or independent forms.
Mistake 1: Filing the foreign-language version "as is" assuming JPO accepts English. JPO requires Japanese. Late translation costs more and risks missing the 32-month deadline.
Mistake 2: Ignoring multi-multi claim issues. Without restructuring, examination is effectively suspended for many claims, wasting fees.
Mistake 3: Forgetting examination request deadline. 3 years from international filing date is firm. Calendaring at entry is essential.
Mistake 4: Not leveraging PPH. If you have allowed claims in US/EP/KR/etc., PPH cuts examination time by 60–80%.
Mistake 5: Choosing the cheapest translator without IP expertise. Translation errors in claims can permanently narrow your patent or render it invalid.
Q. Can I delay the Japanese translation if I miss the 30-month deadline?
A. You have a 2-month grace period (32 months total) to submit the Japanese translation, with a JPY 14,000 surcharge. Beyond 32 months, the application is deemed withdrawn and restoration requires the strict "due care" standard.
Q. Do I need a Japanese patent attorney?
A. Yes. Foreign applicants without a Japanese address must be represented by a Japanese-licensed patent attorney (benrishi) for all JPO communications. We act as your local agent.
Q. How long does the examination take?
A. Standard examination averages 10–14 months from request to first Office Action. With PPH, expect 3–6 months. Total time to grant: 3–7 years standard, 1–2 years with PPH.
Q. What if I want to amend claims at entry?
A. You can file voluntary amendments at entry or before examination begins. This is the optimal time to restructure for multi-multi claim compliance and to focus claims on commercially valuable scope.
Q. How much do annuities cost in Japan?
A. Annuities start from JPY 8,400 base + JPY 800 per claim for years 4–6, increasing in tiered brackets. A 20-claim patent has annuities of roughly JPY 24,400 in year 4 rising to JPY 122,200 in years 10+.
Q. Can I switch attorneys mid-case?
A. Yes. Transfer requires a new Power of Attorney and notification to JPO. We handle case takeover for foreign counsel routinely, including reviewing prior prosecution history for strategy.
Continue exploring Japan IP topics for foreign counsel
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Evorix offers transparent fixed-fee national phase entry services for foreign IP counsel, with AI-assisted Japanese translation, benrishi quality review, and 24-hour quote turnaround. Save 30–40% on translation costs while maintaining patent-law-grade accuracy.