AI-driven, Human-led Localization

AI and craftsmen, together—
taking your message to the world.

Since our founding in 1999, DEPRO has valued the connections between people.
Our craftsmen, evolving together with AI, support your global strategy with Made-in-Japan localization quality.

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Major Source Clients

Hewlett Packard EnterpriseHP Inc.Keysight TechnologiesAgilent TechnologiesMicrosoftDellRohde & SchwarzOpenTextCybereasonETASMarkforgedToyo Keizai Inc.

Philosophy

AI-driven. But
human-led.

For more than a quarter of a century, DEPRO’s history has been built by its individual craftsmen. The remarkable evolution of generative AI is now raising the very nature of their abilities to a new level.

AI is a co-creation partner that processes vast amounts of data in an instant and makes the future exciting. Yet it is we, the craftsmen, who control and judge what it produces. We believe that a process that is AI-driven yet firmly human-led is the foundation of value creation through co-creation—and the cornerstone that will bring within reach human-centered AI models, the establishment of LifeTech, and future well-being created through our fusion with AI.

A translator checking English and Japanese translations organized by AI, one by one
AI supports. Craftsmen decide.

AI as Partner

AI as a co-creation partner

We embrace generative AI not merely as a tool for efficiency, but as a partner that creates value with us—across every stage of localization.

Human-led

Craftsmen make the call

Experienced craftsmen control and judge everything produced in collaboration with AI. We remain committed to Made-in-Japan quality and true craftsmanship.

Human-centered

Into the future with human-centered AI

Even when autonomous AI comes to dominate business, we will never stop putting people at the center. We believe this is what leads to future well-being.

Beyond Human-only, Beyond AI-only

Reaching where humans alone
or AI alone cannot.

By mastering AI, we achieve a level of certainty and speed that human translators alone cannot reach. By keeping craftsmen in charge, we ensure the quality and accountability that AI alone cannot guarantee. DEPRO’s localization delivers both at once.

Human translators only AI only DEPROAI × Craftsmen
Natural flow and nuance ◎ △May misread context ◎Craftsmen make the final call
Accuracy (facts and terms verified) ○Limited research capacity △Risk of hallucination ◎AI researches thoroughly; people verify
Speed and high volume △ ◎ ◎
Consistency of terms and style ○Varies by translator ○Depends on instructions ◎AI cross-checks the whole text
Final accountability for quality ◎ × ◎Held by people

AI Collaboration Skills

Using AI does not mean
anyone can produce the same results.

What makes the difference is what you ask AI, how you instruct it, and how you judge the answers it gives.
Through real projects every day, DEPRO keeps learning and refining, as an organization, the skills to work with AI.

  • 01

    Instructing

    Conveying purpose, context, terminology and style to AI precisely. We turn our expertise in each field into clear instructions for AI.

  • 02

    Discerning

    Craftsmen judge the accuracy, nuance and risk of every AI output, one by one. Final responsibility for quality rests with people.

  • 03

    Integrating

    Not just translation, but terminology management, QA, DTP and document processing. We work with AI throughout every process.

  • 04

    Continuous learning

    As AI evolves rapidly, we keep testing and sharing what we learn in-house, updating our know-how for working with AI every day.

English and Japanese technical documents side by side, with terminology being checked with a pen

About Quality

When you hear “AI translation,”
are you worried about quality?

“Can AI-based translation really deliver quality that stands up to business use?” Such concerns are entirely understandable. At DEPRO, we never simply adopt the raw output of machine translation or AI translation.

After performing AI translation in a secure environment, we have a separate AI carry out thorough research, verification and correction—again and again. Beyond detecting and correcting hallucinations (mistranslations not grounded in fact), we layer on careful adjustments that take the target market, brand tone and readership into account. Controlling and managing this advanced process requires the exceptional skill of “localization craftsmen” with broad knowledge, deep insight and extensive experience.

Adopting AI does not mean any translation company can instantly produce high-quality, reliable translations. Because DEPRO has steadily built up the fusion of human expertise and AI, we can deliver quality you can rely on.

  1. 1

    Initial translation by AI or professional translators

    Translated with the best approach for the project, based on domain expertise, glossaries, style guides and more.

  2. 2

    Research, verification and correction by AI

    Uncertain information and unclear passages are identified, backed up with clear evidence, and corrected.

  3. 3

    Review, judgment and finishing by craftsmen

    Craftsmen assess subtle nuances, context and potential risks, repeating steps 2 and 3 as needed.

  4. 4

    Quality assurance and delivery

    Naturally, final responsibility for quality rests entirely with people.

Your Strategic Partner

Turning knowledge into value.

Why not bring DEPRO’s localization team into your development team?
We turn the knowledge born of our experience and technical expertise into business value for you.

01

L10n Value
Knowledge

We provide the knowledge best suited to strategies tailored to each region’s characteristics—compliance, risk and marketing.

02

Knowledge Built on
Experience and Expertise

We bring to your projects knowledge proven through extensive experience, a solid track record and the technical skills we have cultivated.

03

Real-time
Communication

Our in-house online query and proofreading system ensures efficiency and consistency throughout your project.

04

Style Guide
Development

To support your branding, we create style guides for each product or for specific uses.

05

CAT Tool
Implementation Support

We provide the knowledge you and freelance translators need when introducing translation support tools, tailored to your needs.

06

Know-how and
Knowledge Feedback

By adopting cutting-edge tools early and sharing feedback with tool developers and freelance translators, we help maximize the benefits of every tool.

Services

One-stop localization services

From software to manuals, online help and marketing content.
We bring consistency to all your content, helping you raise quality, reduce costs and strengthen your brand.

A localization workflow connecting source documents, translation, layout and delivery in one seamless flow

Translation / Localization

We translate all kinds of content—software, manuals, catalogs, press releases, e-learning, video captions and more—with careful attention to tone and target audience.

Compilation / Conversion

We translate single-source content such as MadCap Flare and Sphinx and output it to PDF, CHM, HTML5 and other formats—including Japanese-specific adjustments and functional testing.

DTP / Design / Image Editing

Using InDesign, Illustrator, FrameMaker and more, we finish the final stage with a native eye—from preserving the source format to creating new designs.

LQA / FQA

We validate translated software from both linguistic and functional points of view, building test environments in the cloud and checking UI and manual consistency through actual operation.

AI-collaborative Translation and Post-editing

AI and craftsmen work together to deliver both speed and quality. We also post-edit AI/MT output processed on your side, following your specifications.

Transcription and Subtitles

Even for video content with no script, we handle everything from transcription and time-coding to translation and subtitle embedding.

Legacy Asset Alignment

We align your past source and target texts to build translation memories, reducing future costs and enabling terminology control and error detection with QA tools.

Screen Capture

We retake the screenshots used in documentation and online help with the localized Japanese build.

Strengths

Why clients choose DEPRO

Our translators, DTP specialists and engineers work together as one team to solve your challenges. Through close collaboration among professionals in each field, we handle everything from small translation jobs to large-scale projects, and give you our full support at every phase of localization.

We believe that the relationships of trust we build with our clients through this work are our most irreplaceable asset.

  • Meets diverse translation quality standards
  • Supports agile software development
  • Simship / simultaneous global release
  • Branding support
  • L10n insights (think tank)
  • Post-editing of MT files
  • Multilingual network
  • Flexibility to meet your needs

◆Areas of Expertise

  • IT
  • Marketing
  • Test & Measurement
  • Automotive
  • Life Sciences
  • Business, Economics & Finance
  • Printers
  • Scanners
  • 3D Printers

◆Supported CAT Tools

  • RWS Trados Studio
  • RWS Passolo
  • Catalyst
  • Translation Workspace
  • Lingotek
  • STAR Transit NXT
  • Smartling
  • Phrase
  • XTM
  • Smartcat
  • Wordfast

DEPRO Original

◆Proprietary Database and QA (Quality Assurance) Tools

  • QTQuery management tool
  • EDTError Detection Tool
  • DBIn-house database

Drawing on nearly 30 years of experience, proven results and know-how, together with strong technical capabilities, we have built our own quality management system.

Beyond industry-standard QA tools such as Xbench, we deploy our in-house database and dedicated tools—including the query management tool “QT” and the error detection tool “EDT (Error Detection Tool)”—at every stage of every project.

This lets us combine rigorous quality control with greater efficiency. And because the tools are developed in-house, we can customize them quickly and flexibly for any project you bring us.

Our Vision

Valuing the connections between people,
we keep creating the future of communication
made possible by the fusion of AI and humans.

The name “DEPRO” comes from “deta prosesshingu,” Japanese for “data processing.” It expresses our determination to remain data processing professionals in every sense of the word.

Company

Company Profile

A bright office with English and Japanese document data flowing through it as streams of light
An animation in which a dot pattern turns into binary data and then into the DEPRO “D” logo mark and the DEPRO name
Company Name
DEPRO Co., Ltd.
Address
Fresco Minami-Osawa 11F, 2-27 Minami-Osawa,
Hachioji City, Tokyo 192-0364, Japan
TEL / FAX
TEL +81-(0)42-670-2801 / FAX +81-(0)42-670-2803
Established
March 11, 1999
Capital
JPY 30,000,000
President
Shojun Sunagawa
Qualified Invoice Issuer Registration No.
T7010101007102
Business
  • Translation and interpreting services
  • Training of translators, interpreters and data processing engineers
  • Planning, development, production and sale of computer software
  • Planning, editing, production and sale of catalogs, manuals, books and advertisements
  • Data processing and information provision services
  • Planning and management of international conferences, exhibitions and events
  • Dispatch of translators, interpreters and computer operators, and more
Main Banks
Sumitomo Mitsui Banking Corporation (Hachioji Branch)
MUFG Bank, Ltd. (Shinjuku Chuo Branch)

Access

Access

Fresco Minami-Osawa 11F
2-27 Minami-Osawa, Hachioji City
Tokyo 192-0364, Japan

Nearest station: Minami-Osawa Station (Keio Sagamihara Line)

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