Japanese romaji converter
Convert Japanese katakana company names to Latin script for cross-script matching. Works best with katakana names — the phonetic script used for most Japanese brand names.
Output appears here…
How it works
Katakana characters are mapped to their Latin phonetic equivalents — ト→to, ヨ→yo, タ→ta, and so on. Japanese legal suffixes (株式会社, 有限会社, 合同会社) are stripped, and the pipeline applies stop word removal and token sorting.
Kanji characters in company names may produce transliterations based on Chinese phonetics rather than Japanese readings — for best results, use the katakana form of the name where available.
Worked examples
| Input (Katakana) | Company | Canonical |
|---|---|---|
| トヨタ | Toyota | toyota |
| ホンダ | Honda | honda |
| パナソニック | Panasonic | panasonitsuku |
| ユニクロ | Uniqlo | yunikuro |
* Canonical output is approximate — actual API output may vary based on pipeline version.
Embed this tool
<iframe src="https://ambect.com/tools/japanese-romaji" width="100%" height="420" style="border:none;border-radius:12px" title="Japanese romaji converter — Powered by Ambect" ></iframe>
Frequently asked questions
What is romaji?
Romaji is the transcription of Japanese text into the Latin alphabet. Japanese company names written in katakana (the script typically used for foreign loanwords and brand names) convert well to romaji. Kanji characters (Chinese-origin logographs) used in Japanese names may produce less predictable results.
Why does this tool work best with katakana names?
Katakana is a phonetic syllabary — each character represents a specific sound, making the Latin mapping straightforward and consistent. Kanji characters represent meaning rather than sound, and their Japanese pronunciation (reading) differs from Chinese pronunciation, which may affect output quality for kanji-heavy names.
Why do Japanese company names appear differently in Latin records?
Different romanization systems (Hepburn, Nihon-shiki, Kunrei-shiki) produce different Latin spellings for the same Japanese name. Additionally, companies often register English trade names that differ from a direct romanization. The Ambect pipeline normalizes common variants to a single canonical form.
How do I match Japanese and English versions of the same company?
Submit both through the Ambect normalize/company endpoint with country "jp". The pipeline converts katakana to romaji before applying synonym mapping, so registered variants like "Toyota" and "トヨタ" can resolve to the same canonical token set.
Need to match Japanese and Latin company records at scale? The Ambect API normalizes both to the same canonical form in under 5 ms.
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