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Mitsui E&S Technical Research Co., Ltd.

A Japanese comprehensive inspection company providing testing, analysis, and measurement services, established in 1979 as a subsidiary of Mitsui Shipbuilding (now Mitsui E&S).

Last updated September 16, 2026

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Overview

Mitsui E&S Technical Research Co., Ltd. is a Japanese company headquartered in Tamano, Okayama, offering testing, inspection, and measurement services. It was founded on April 2, 1979 as a wholly owned subsidiary of Mitsui Shipbuilding (now Mitsui E&S) under the name Sanzo Test Center Co., Ltd., and changed its name to Mitsui E&S Technical Research Co., Ltd. on April 1, 2018. Its services include material testing, measurement, chemical and environmental analysis, non-destructive inspection, and radar exploration.

History

The company's origins trace to 1952, when a research laboratory that would become the parent of Sanzo Test Center Co., Ltd. was established at Mitsui Shipbuilding's Tamano Shipyard. On April 2, 1979, Sanzo Test Center Co., Ltd. was founded as a wholly owned subsidiary of Mitsui Shipbuilding. Operations at the Tamano Office (headquarters) began on May 1, 1979, and Chiba and Osaka branch offices were opened on November 1, 1979. In 1986, the Tamano Office was reorganized into the Western Office and the Chiba Branch into the Eastern Office. A Tokyo sales office was opened in 1989, and an Oita branch in 1993. The Osaka Branch was reorganized into the Osaka Office in 1999 and then into the Osaka Sales Office in 2001. The Tokyo sales office and Oita branch were closed in 2002. On April 1, 2018, the company changed its name to Mitsui E&S Technical Research Co., Ltd.

Products and positioning

A comprehensive inspection company providing testing, analysis, and measurement services tailored to customer needs, contributing to a safe and secure society.

  • Material testing

    Material structure testing, mechanical testing, damage cause investigation, and remaining life evaluation.

  • Measurement

    Strain and stress measurement, friction and sliding measurement, vibration measurement, environmental measurement (vibration and noise), torque measurement, vibration measurement data analysis, residual stress measurement.

  • Chemical and environmental analysis

    Environmental analysis and measurement, component analysis, asbestos investigation, mask fit testing, welding and cutting fume analysis.

  • Non-destructive inspection

    Ultrasonic testing, eddy current testing, radiographic testing, X-ray fluorescence analysis, penetrant testing.

  • Radar exploration

    Road survey, tunnel survey, radar exploration equipment.

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