EKO 4 National Translation Service

Certified Japanese Translation Services

Koseki family registers, juminhyo and diplomas — era dates converted, kanji names matched to your passport
30 +
Years of
Excellence
50000 +
Happy
Customers
500 +
Human
Translators
89 +
Countries Accepting
EKO 4's Certified Translations
  • Over 30 Years’ Experience
  • ISO 17100 Compliant
  • Accredited in All 50 States
  • Confidentiality & Privacy Assured
  • Secure Online Ordering
  • 100% Satisfaction Guaranteed

Documents Japan issues, in the format American officers expect

The hardest part of a Japanese document is rarely the language — it is the system behind it. Japan does not issue birth certificates the way the U.S. does; it keeps a koseki, a family register that proves birth, marriage, adoption and lineage in a single record, supported by the juminhyo residence certificate. EKO 4 National Translation Service turns these into certified English translations that U.S. authorities read without a second question: word for word, every seal and annotation, a signed accuracy affidavit on official letterhead, our wet stamp — and a 100% acceptance guarantee behind it all.

Two conversions decide whether a Japanese translation is accepted. Era dates — Reiwa, Heisei, Shōwa — must land on the exact Gregorian year, and kanji names can carry several readings, so we verify the romanization against your passport instead of guessing. The layout mirrors the register itself, letting an officer match entry to entry at a glance. Serving all 50 states since 1991, with express 24-hour delivery available.

Both directions, one certified standard

Japanese to English

  • USCIS & green card filings
  • Koseki family registers (戸籍)
  • Juminhyo residence certificates
  • Diplomas & credential evaluations
  • Court & corporate documents
  • Medical records

English to Japanese

  • Documents for use in Japan
  • Apostilled translation packages
  • Contracts with Japanese partners
  • Marketing & websites
  • School records for relocating families
  • Visa & municipal filings

Japanese documents we translate every day

  • Birth records & koseki extracts
  • Marriage records (koseki tohon)
  • Divorce records
  • Death records
  • Diplomas & degrees
  • Academic transcripts
  • Police clearances
  • Passports
  • Driver’s licenses
  • Bank statements
  • Juminhyo residence certificates
  • Corporate registrations (tokibo)

Document not listed? That has never stopped us — send it over for a free quote, or browse our full document translation service.

Why EKO 4 for this language

The koseki, entry by entry

Tohon and shohon extracts are Japan’s master civil record. Each entry, annotation and registrar stamp is translated in a layout USCIS and consulates recognize immediately — family relationships readable at a glance.

Imperial dates, exact years

Shōwa 52 is 1977 — and your translation has to say so. Every era date is converted to its precise Gregorian equivalent alongside the original, so no reviewer ever does calendar arithmetic on your case.

Romanization you confirm

One kanji, several possible readings. We match your name to your passport and earlier filings — and you sign off on the spelling before we certify, keeping your entire file consistent.

Need it official? One order covers the whole chain

Certified translation, notarization and apostille — handled in-house, in a single online order, wherever in the country you are.

1

Certified translation

Word-for-word translation with a signed accuracy affidavit, official letterhead and wet stamp — accepted by USCIS, courts and authorities nationwide.

2

Notarization

A licensed notary notarizes your translation 100% online — no office visit, ready as fast as the next business day.

3

Apostille

We obtain the apostille from the correct competent authority — the issuing state’s Secretary of State, or the U.S. Department of State for federal documents — end to end.

Not sure what your document needs? Call (844) 844-4423 — we answer 24/7 — or contact us online.

Average rating of 4.9/5 from 1350 reviews on Google and Facebook

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Hollywood, FL
My order was processed fast and communication was prompt.
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Tampa Bay, FL
Vess was responsive and extremely professional. Our document was translated to Spanish and our bilingual board members agreed that it was well done. Thanks Vess and team!
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Byron A.
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Miami-Dade County, FL
The end result of my certified translation document was very professional. I am very very satisfied. The level of excellence of this translation service is just outstanding.
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Jose A.
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Miami-Dade County, FL
Quick, easy, and professional. Price is reasonable.
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Maria K.
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Northvale, NJ
It was an easy process, translation was done very fast. They misspelled one word, but fixed it quickly. Overall - great experience!
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Daniel S.
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Fort Lauderdale, FL
Was very convenient to just have it done online and the documents I received were of the highest quality! I’d highly recommend to anyone
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Tampa Bay, FL
Excellent
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Miami-Dade County, FL
Amazing service stand with the timming
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Maritza G.
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Miami-Dade County, FL
They were very hands on with all my questions, letting me know about the translation.
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Angel G.
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Miami-Dade County, FL
Excellent service!!! All extremely professional and friendly staff! I recommend your work 100% Thank you so much!!!

Japanese translation — questions & answers

1USCIS wants my birth certificate, but Japan only issues koseki — what do I send?
A koseki extract is exactly what USCIS expects from Japan: request a tohon (the full register) or shohon (an individual’s extract) from your municipal office and we attach our certified English translation. We prepare both forms constantly, laid out so an officer can trace the family relationships without help.
2Do you convert Japanese era dates?
Always. Shōwa, Heisei and Reiwa dates are each converted to the exact Gregorian year and shown clearly beside the original wording, which stays translated word for word — the reviewing officer sees the correct year with zero imperial-calendar math.
3How do you romanize my kanji name?
By verification, never by guesswork. We take the spelling from your passport and any prior filings, ask you to confirm it, and then apply it identically across every document in your order — so your file never contradicts itself.
4Are hanko seals and register annotations translated too?
Yes — and they matter more than most people expect. Adoptions, name changes and corrections live in those seals and marginal annotations, and cases often turn on exactly those entries, so each one is rendered word for word.
5How fast can you translate my Japanese documents?
A standard certificate is typically ready within a day, with express 24-hour and same-day options for urgent filings. Notarization adds about one business day; apostille timing depends on the issuing jurisdiction, and the order form shows your exact completion date before payment.

EKO 4 National Translation Service delivers professional, human translation
in up to 72 languages — coast to coast

Every certified translation at EKO 4 is produced by a vetted human linguist — educated, widely experienced and genuinely at home in both of their languages. That is what allows us to stand behind a 100% accuracy guarantee across more than three decades of work.

From our first project in 1991 to the 50,000+ clients we serve today, the formula has never changed: careful translators, disciplined proofreading and honest service. It is why a first order so often becomes a working relationship that lasts for years.

EUROPEAN

Albanian Armenian Azerbaijani Belarusian Bosnian Bulgarian Catalan Chechen Croatian Czech Danish Dutch Estonian
Finnish Georgian Greek Hungarian Irish Italian Kashubian Kazakh Latvian Lithuanian Macedonian Maltese Montenegrin
Norwegian Polish Portuguese Romanian Sami Serbian Slovak Slovenian Swedish Tatar Turkish Ukrainian Welsh

ASIAN, AFRICAN, MIDDLE EASTERN

Arabic Assamese Azerbaijani Bashkir Bengali Bhojpuri Dari Farsi Gujarati Haitian Creole Hebrew Hindi Kannada
Khmer Konkani Malayalam Mandarin Marathi Nepali Oriya Ossetian Pashto Persian Punjabi
Sanskrit Sinhalese Sundanese Sylheti Tagalog Tamil Telugu Thai Urdu Vietnamese

No translation leaves our hands on a single pass. Before any linguist joins EKO 4 they are recruited, vetted, interviewed and examined; once on a project, their work moves through editors and project managers who proofread it again before it ever reaches you. That layered process is the machinery behind our 100% accuracy guarantee.

Most of our 500+ translators and editors have spent years inside international, multi-cultural projects, so the finished document does not merely say the right words — it speaks to the audience, authority or market it was written for.

Professionalism, precision and fair pricing, backed by a 100% quality guarantee. Wherever in the country you are, EKO 4 speaks your language — explore all of them on our languages page.

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