Financial Services|Legal Compliance|Increase Efficiency

Nagashima Ohno & TsunematsuDocument translation

Manual translation took lawyers a full day per page. Secure AI cuts this to minutes, using glossaries to keep legal terms consistent.

Jan 5, 2026|1 month ago

Key results

Manual Creation Time
5 hours
vs 10 hours

The company

Nagashima Ohno & Tsunematsu logo

Nagashima Ohno & Tsunematsu

nagashima.com

Full-service corporate law firm specializing in international legal matters.

IndustryFinancial Services
LocationTokyo, Japan
Employees251-1K
Founded2000

Result highlights

  • IT manual translation cut from 10 hours to 5 hours
  • Legal drafting time cut from 1 day to minutes

The story

One of Japan's top five law firms employs over 1,000 staff across global offices in Tokyo, New York, and Singapore, handling high volumes of sensitive international casework.

Non-native English speakers faced significant hurdles processing large volumes of documents, with single-page translations often taking a full day to draft manually. Strict confidentiality requirements ruled out public generative AI tools that might train models on client data.

The firm deployed DeepL Enterprise across the organization following a security review by its Legal Tech Study Group to ensure data privacy. IT facilitated adoption through internal webinars and portal updates that shared best practices for workflows. Staff use the glossary feature to maintain consistent contract terminology while batch-processing documents via secure drag-and-drop uploads.

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