"MOVE THE WORLD FORWARD"
Tokyo heavy-industry group (TSE: 7011) whose robotics include the OZZ-5 mine-countermeasure AUV, EX ROVR explosion-proof inspection robot and MEISTeR.
Mitsubishi Heavy Industries, Ltd. (MHI) is a Japanese engineering and manufacturing group founded in 1884 and headquartered in Tokyo. It is listed on the Tokyo Stock Exchange (TSE: 7011) and reported consolidated revenue of JPY 5,027.1 billion and order intake of JPY 7,071.2 billion for the fiscal year ended March 31, 2025. Its businesses span energy systems (gas turbines, nuclear power, hydrogen and carbon capture), plants and infrastructure, aircraft, defense and space.
Maritime unmanned systems. MHI is the prime contractor for the Japan Maritime Self-Defense Force’s Mogami-class multi-mission frigates. Its OZZ-5 is an autonomous underwater vehicle (AUV) for mine countermeasures, fitted with a low-frequency synthetic aperture sonar (LF-SAS), and serves as the search-and-identification element of the Mogami-class mine-countermeasure system. Under a research and prototype contract with Japan’s Ministry of Defense announced in March 2021, MHI has been combining the OZZ-5’s sonar with a high-frequency synthetic aperture sonar from Thales to improve automatic detection and classification of buried and bottom mines, with real-time synthetic aperture processing. The company’s Maritime Unmanned Systems Development Department, part of its Naval Ship & Maritime Systems Division, also designed the Whale, an 8.8 m monohull unmanned surface vehicle of about 6 tons used as a testbed for UUVs, rotary-wing UAVs and expendable mine-disposal devices.
Plant and nuclear robotics. Within its nuclear power business, MHI develops robots for hazardous sites. EX ROVR “ASCENT” is an autonomous, explosion-proof plant inspection robot certified for Zone 1 hazardous areas under ATEX and IECEx (gas group IIB + H2, T3). It navigates multiple floors using 3D LiDAR maps, climbs stairs up to 46 degrees and positions its camera with a 6-axis manipulator; its sensors record visual, thermal, acoustic and gas-concentration data, which is sent over 4G/LTE to the cloud, and it recharges on an explosion-proof contactless induction charger. The robot weighs 70 kg without its charging station. MEISTeR is a remotely operated dual-arm mobile robot with two 7-axis manipulators (15 kg each), four crawler tracks and the ability to climb 40-degree stairs. An improved version of the MARS series developed after the 1999 JCO criticality accident, it was adapted for work at the Fukushima Daiichi Nuclear Power Station, where it became the first robot to cut a cylindrical concrete core and carry it out of the plant under full remote control.
Related entities. Spectra (spectra.mhi.com) is MHI Group’s English-language editorial site covering its energy, infrastructure and security businesses; it is a communications channel, not a separate company. Mitsubishi Electric, maker of MELFA industrial robots, is an independently listed company and not part of MHI Group. In May 2026 MHI completed the sale of its stake in forklift and logistics-equipment maker Logisnext (formerly Mitsubishi Logisnext).
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Contact Mitsubishi Heavy Industries, Ltd.
WEBSITE
https://www.mhi.comPHONE
+1 346-308-8800HEADQUARTERS
Japan
Company Facts
Founded
1884
Primary Role
Manufacturer
Company Size
-
Primary Region
Asia-Pacific
Annual Sales
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Funding Stage
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Funding Total
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