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Yokohama Works

A Wide Range of Technology Creates a Variety of Products and Supports Future Society

The history of the Yokohama Works goes back to the establishment of Yokohama Dock Company, Ltd. in 1891. The company later expanded into shipbuilding and machinery production. In 2009, a plant for blades used in gas turbines was completed.
Today's Yokohama Works offers technology and products designed to achieve a more comfortable society. With an accurate understanding of social needs, the Works remains totally committed to meeting the challenges of new technologies and new fields.

516,534 square meters (site)
132,268 square meters (building)
International Certifications
ISO 9001 Quality Management System
ISO 14001 Environmental Management System
OHSAS 18001 Occupational Health & Safety Assessment Series

Main Products

Gas Turbines

J Gas Turbine (blades, vanes and ring segments)

Control Equipment

Control Equipment (DIASYS Netmation 4S)


1891 Yokohama Dock Co., Ltd. established.
1935 Merged with Mitsubishi Heavy Industries, Ltd. to become Mitsubishi Heavy Industries, Ltd. Yokohama Dock.
1943 Renamed Mitsubishi Heavy Industries, Ltd. Yokohama Shipyard and Machinery Works.
1952 The first "Mitsubishi Yokohama-CE" boiler delivered.
1961 The first "Mitsubishi Yokohama" turbine completed.
1966 Opening of Honmoku Plant.
1983 Renamed Mitsubishi Heavy Industries Yokohama Dockyard & Machinery Works.
1991 Marked the 100th anniversary of the foundation of the Works.
2009 Gas turbine blade shop built.
2014 Mitsubishi Hitachi Power Systems, Ltd., a joint venture company formed by Mitsubishi Heavy Industries and Hitachi integrating thermal power generation systems and other related businesses, established. Mitsubishi Hitachi Power Systems' Yokohama Works was formed as a result.


Address 12, Nishiki-cho, Naka-ku, Yokohama City, Kanagawa, 231-8715, Japan
Phone +81-45-629-1600
By bus
At Yokohama or Sakuragicho Station on the JR line, take a city bus bound for Honmoku-Shako-mae and get off at Yokohama-Honmokueki. The Works is a 3-minute walk from the bus stop.
By taxi
About 15 minutes from JR Sakuragicho Station
About 10 minutes from JR Negishi Station