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Japanese medical interpreters

Real-time Japanese medical interpretation for healthcare teams, on phones, tablets, and computers.

Dialects supported by Opalite:StandardKansaiOkinawan

460,300 people in the U.S. speak Japanese at home.

Source: U.S. Census Bureau, 2017-2021 American Community Survey 5-year estimates.

Japanese speakers by state
StateSpeakers
California136,000
Hawaii38,210
Washington26,990
Oregon10,480
Ohio10,110
Nevada7,000
Colorado6,443
Utah5,567
Indiana5,502
Tennessee4,398
Kentucky3,511
South Carolina2,710
Alabama2,411
Idaho1,794
Nebraska1,558
Alaska1,488
District of Columbia1,029
West Virginia925
Mississippi731
North Dakota620
Wyoming604
Montana436
Vermont372

State counts reflect the 15 most reported non-English languages in each state’s ACS table. States where Japanese falls outside the top 15 are shown without shading; the national total includes every state.

181,000

speakers of Japanese speak English less than “very well”: the federal threshold for needing language assistance.

39%

of Japanese speakers in the U.S. meet that limited-English definition.

136,000

people speak Japanese at home in California alone.

Source: U.S. Census Bureau, 2017-2021 American Community Survey 5-year estimates.

Meet Opalite.

Real-time AI medical interpretation in 150+ languages and dialects, connecting providers and patients in seconds.

  • Works on the devices care teams already carry: phones, tablets, computers, and telehealth platforms
  • Integrates with all EHRs
  • Built for HIPAA-compliant healthcare
  • SOC 2 Type II attested security controls

What to know when interpreting Japanese

Every language has grammar that an interpreter must handle correctly. These are the Japanese features that the fewest other languages in the world share, according to the World Atlas of Language Structures (WALS).

Japanese · Japanese · Eurasia

1.9%

of the world’s languages share this trait

Japanese has a rasping sound made at the very back of the throat, like the French “r”, so an interpreter must keep it distinct from an ordinary “r” or “h” in names.

WALS 6A · Uvular Consonants · Uvular continuants only

3.4%

of the world’s languages share this trait

Japanese speakers avoid saying “you” at all and use a title, name or family term instead, so an interpreter must choose an address that fits the patient’s age and standing.

WALS 45A · Politeness Distinctions in Pronouns · Pronouns avoided for politeness

4%

of the world’s languages share this trait

Japanese lets an adjective stand in for a noun in several different ways, so an interpreter must supply the missing noun and turn “the red one” into “the red tablet”.

WALS 61A · Adjectives without Nouns · Marked by mixed or other strategies

How Japanese is structured

Word ordersubject, object and verb
SOV
Adpositionsprepositions or postpositions
Postpositions
Adjectivebefore or after the noun
Adjective-Noun
Demonstrativethis and that, before or after
Demonstrative-Noun
Numeralnumber before or after the noun
Numeral-Noun
Genitivepossessor before or after
Genitive-Noun
Relative clausebefore or after the noun
Relative clause-Noun
Morphologyprefixing or suffixing
Strongly suffixing
Tonewhether pitch changes meaning
Simple tone system
Casesnumber of noun cases
8-9 cases
Gendersnumber of noun genders
Not coded
Classifierscounting words for nouns
Obligatory

Source: Dryer, Matthew S. & Haspelmath, Martin (eds.) 2013. WALS Online, Max Planck Institute for Evolutionary Anthropology, Leipzig. Japanese entry: wals.info JPN. Licensed under CC BY 4.0. Values are reproduced as WALS codes them; each links to its datapoint. The clinical readings are Opalite’s own inferences and are not part of WALS.

FAQs about Japanese medical interpreters

Three states hold 44% of the nation’s Japanese speakers, and Japanese ranks in the published top-15 language tables of 23 states.

Source: U.S. Census Bureau, 2017-2021 American Community Survey 5-year estimates.

Opalite uses the same underlying interpretation techniques for Japanese as it does for Spanish, Mandarin, and Cantonese. In Opalite’s published validation study, those three languages were evaluated in clinical conversations, with over 90% fewer errors than certified medical interpreters across the conversations studied.

Try Japanese medical interpretation.

See a live conversation interpreted. Ask about setup and pricing.