The origin of MHI can be traced all the way back to 1884. In that year, Yataro Iwasaki, the founder of Mitsubishi, took lease of Government-owned Nagasaki Shipyard. He named it Nagasaki Shipyard & Machinery Works and started the shipbuilding business on a full scale. This shipbuilding business was later turned into Mitsubishi Shipbuilding Co., Ltd and was again launched as Mitsubishi Heavy-Industries, Ltd. In 1934, establishing its position as the largest private firm in Japan.

Following the end of WWII, a law aimed at dissolving “Zaibatsu” or dismantling the over concentration of economic power was in effect. Thus, in 1950, MHI was divided into three entities: Central Japan, East Japan and West Japan Heavy Industries, Ltd. It was later consolidated in 1964 and reborn as Mitsubishi Heavy Industries, Ltd.

Mitsubishi Heavy Industries, Ltd. encompasses many different products and technologies:
• Shipbuilding
• Steel Structure & Construction
• Power Systems
• Nuclear Energy Systems
• Machinery & Plants
• Aerospace Systems
• General Machinery and Special Vehicles
• Air-conditioning & Refrigeration Systems
• Industrial Machinery
• Paper & Printing Machinery

By combining advanced technologies applied in Mitsubishi’s Aircraft, Aerospace and Power System Divisions, new concepts in machining are being produced by Mitsubishi’s Machine Tool Division.