AI contract review built for Japanese law
Upload any contract in Japanese or English. Receive redlines, a risk score, missing clauses, and statutory citations in under 60 seconds. Every finding is grounded in a specific article of Japanese law.
Indefinite confidentiality obligations are generally unenforceable under Japanese law. Civil Code Article 90 voids contracts contrary to public order. A defined term of 3-5 years is standard.
Civil Code Art. 90Governing law is specified as Singapore law. This creates enforcement risk for disputes in Japan. If the counterparty is Japan-domiciled, Japanese courts may apply Japanese law regardless.
Act on General Rules of Application of Laws Art. 7The restriction on assignment does not carve out internal restructuring or corporate mergers. This is common but worth confirming with the counterparty before executing any M&A activity.
Civil Code Art. 466What you get with every review
Redlines on every clause
Each problematic clause is flagged with a severity level, a plain-language explanation, and a suggested replacement. Every finding cites the specific article of Japanese law it is based on.
Deterministic risk score
A 0-100 risk score computed from your redlines using a fixed formula, not estimated by AI. The same contract always produces the same score. You can see exactly what drove it down.
Results in under 60 seconds
Upload a contract and receive a full review in under a minute. Download a standalone HTML report or an annotated PDF with highlights and a summary page appended.
What the Keiyaku Agent checks
The Keiyaku Agent reviews contracts against a curated corpus of Japanese statutes. Here is a non-exhaustive list of what it looks for.
Common questions
What types of contracts does this work on?
Any commercial contract in Japanese or English. NDAs, SaaS agreements, employment contracts, service agreements, real estate leases, joint venture agreements. The Keiyaku Agent handles the full range of commercial agreements governed by Japanese law.
What file formats are accepted?
PDF and DOCX. Maximum file size is 50 MB. Scanned PDFs without machine-readable text will be flagged before review begins.
Are the statutory citations accurate?
Yes. Every legal claim is cited against our Japan-native corpus of statutes. The agent does not invent citations. If a claim cannot be grounded in a retrieved statute, it is not included in the output.
Is this a replacement for a lawyer?
No. Hanko AI is a legal intelligence platform, not a law firm. For matters requiring legal representation, escalation to a licensed attorney is always recommended. The platform flags matters that exceed its authority automatically.
Ready to review contracts this way?
Hanko AI is in closed beta. Access is by application. We review every application personally and respond within 3 to 4 business days.
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