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, formerly known as is a Japanese engineering corporation headquartered in
Tokyo Tokyo, officially the Tokyo Metropolis, is the capital of Japan, capital and List of cities in Japan, most populous city in Japan. With a population of over 14 million in the city proper in 2023, it is List of largest cities, one of the most ...
,
Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
that produces and offers
ship A ship is a large watercraft, vessel that travels the world's oceans and other Waterway, navigable waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research and fishing. Ships are generally disti ...
s,
space launch vehicles A launch vehicle is typically a rocket-powered vehicle designed to carry a payload (a crewed spacecraft or satellites) from Earth's surface or lower atmosphere to outer space. The most common form is the ballistic missile-shaped multistage ...
,
aircraft engine An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Aircraft using power components are referred to as powered flight. Most aircraft engines are either piston engines or gas turbin ...
s, marine
diesel engine The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compr ...
s,
gas turbines A gas turbine or gas turbine engine is a type of continuous flow internal combustion engine. The main parts common to all gas turbine engines form the power-producing part (known as the gas generator or core) and are, in the direction of flow: ...
,
gas engine A gas engine is an internal combustion engine that runs on a fuel gas (a gaseous fuel), such as coal gas, producer gas, biogas, landfill gas, natural gas or hydrogen. In the United Kingdom and British English-speaking countries, the term is ...
s, railway systems,
turbocharger In an internal combustion engine, a turbocharger (also known as a turbo or a turbosupercharger) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake air, forcing more air into th ...
s for
automobiles A car, or an automobile, is a motor vehicle with wheels. Most definitions of cars state that they run primarily on roads, Car seat, seat one to eight people, have four wheels, and mainly transport private transport#Personal transport, peopl ...
, plant engineering, industrial machinery,
power station A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the electricity generation, generation of electric power. Power stations are generally connected to an electr ...
boilers and other facilities,
suspension bridges A suspension bridge is a type of bridge in which the deck (bridge), deck is hung below suspension wire rope, cables on vertical suspenders. The first modern examples of this type of bridge were built in the early 1800s. Simple suspension bridg ...
and other structures. IHI is listed on the
Tokyo Stock Exchange The , abbreviated as Tosho () or TSE/TYO, is a stock exchange located in Tokyo, Japan. The exchange is owned by Japan Exchange Group (JPX), a holding company that it also lists (), and operated by Tokyo Stock Exchange, Inc., a wholly owned sub ...
Section 1. Following the reporting of a company
whistleblower Whistleblowing (also whistle-blowing or whistle blowing) is the activity of a person, often an employee, revealing information about activity within a private or public organization that is deemed illegal, immoral, illicit, unsafe, unethical or ...
in February 2024, on April 24, 2024, the company announced that investigation was underway by the
Ministry of Land, Infrastructure, Transport and Tourism The , abbreviated MLIT, is a ministry of the Japanese government.国土交通省設置法
of its subsidiary, IHI Power Systems Co., which had falsified its engine data since 2003, affecting over 4,000 engines worldwide.


History

* 1853 – establishment of Ishikawajima Shipyard by the
Mito Domain was a Japanese domain of the Edo period. It was associated with Hitachi Province in modern-day Ibaraki Prefecture.Edo Shogunate The Tokugawa shogunate, also known as the was the military government of Japan during the Edo period from 1603 to 1868. The Tokugawa shogunate was established by Tokugawa Ieyasu after victory at the Battle of Sekigahara, ending the civil wars ...
, who faced the
Perry Expedition ] The Perry Expedition (, , "Arrival of the Black Ships") was a diplomatic and military expedition in two separate voyages (1852–1853 and 1854–1855) to the Tokugawa shogunate () by warships of the United States Navy. The goals of this expedit ...
and the subsequent pressure to compete with the
Great Powers A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power ...
, in Ishikawajima, Chuo district of Tokyo. * 1854–1856 – construction of the Japanese warship ''Asahi Maru'' at Ishikawajima shipyard. * 1889 – incorporation of Ishikawajima Shipyard as Ishikawajima Shipbuilding & Engineering Co., Ltd. * 1907 – establishment of Harima Dock Co., Ltd. * 1929 – spinoff of Harima's automobile section as Ishikawajima Automotive Works (later
Isuzu , commonly known as Isuzu (, ), is a Japanese multinational automobile manufacturer headquartered in Yokohama, Kanagawa Prefecture. Its principal activity is the production, marketing and sale of Isuzu commercial vehicles and diesel engines ...
through a series of mergers) * 1960 – establishment of Ishikawajima-Harima Heavy Industries Co., Ltd. through a merger of Ishikawajima and Harima * 1995 – IHI and
Sumitomo Heavy Industries (SHI) is an integrated manufacturer of industrial machinery, defence products, ships, bridges and steel structure, equipment for environmental protection, including recycling, power transmission equipment, plastic molding machines, laser proce ...
merged a warship business and established Marine United Ltd. The
Uraga Dock Company was a major privately owned shipyard in Uraga, Japan, which built numerous warships for the Imperial Japanese Navy. History Uraga Dock Company was founded by Enomoto Takeaki in 1869. A shipyard had already existed in Uraga from the end of the ...
was the origin in the shipbuilding of Sumitomo Heavy Industries. It was made by
Enomoto Takeaki Viscount was a Japanese samurai and admiral of the Tokugawa navy of Bakumatsu period Japan, who remained faithful to the Tokugawa shogunate and fought against the new Meiji government until the end of the Boshin War. He later served in the ...
. However, Sumitomo Heavy Industries moved Uraga Dock to Yokosuka in 2003. IHI moved a shipbuilding section to Marine United in 2002 and changed its name to IHI Marine United Ltd. IHI Marine United became the subsidiary of IHI in 2006. * 2000 – purchased
Nissan Motor is a Japanese multinational automobile manufacturer headquartered in Yokohama, Kanagawa, Japan. The company sells its vehicles under the ''Nissan'' and '' Infiniti'' brands, and formerly the ''Datsun'' brand, with in-house performance tuning ...
's Aerospace and Defense Divisions and established IHI Aerospace Co., Ltd. * 2007 – name changed to IHI Corporation. * 2008
Hauzer Techno Coating
joins IHI Corporation as PVD coating machine manufacturer * 2012 – IHI Corporation acquire
Ionbond
provider of innovative coating services * 2013 – established
Japan Marine United (informally JMU) is a Japanese ship building marine engineering and service company headquartered in Yokohama, Japan. It's Japan's second largest shipbuilder after Imabari Shipbuilding, with shipyard facilities in Kure, Hiroshima, Yokohama, Na ...
Corporation, merging its ship building unit, Marine United Inc., with Universal Shipbuilding Corp. of
JFE Holdings is a corporation headquartered in Tokyo, Japan. It was formed in 2002 by the merger of and and owns JFE Steel, JFE Engineering and Japan Marine United. JFE is from Japan, Fe (the chemical element symbol of iron) and Engineering. In 2020, i ...
after discussion started in April 2008 * 2016 – sold all shares of wholly owned IHI Construction Machinery Limited to Kato Works Company Limited. * 2018 – IHI halts manufacturing nuclear reactor parts to focus on aircraft parts, leaving
Japan Steel Works The is a steel manufacturer founded in Muroran, Hokkaidō, Japan in 1907. History Japan Steel Works was set up with investment from British firms Vickers, Armstrong Whitworth and Mitsui. During World War II, they manufactured what was then t ...
as the sole Japanese supplier of reactor parts. * 2024 – Subsequent to the February report of a company whistleblower; on April 24, IHI Corp. announced that its subsidiary, IHI Power Systems Co., had been falsifying fuel consumption and efficiency data of engines used in ships and trains since 2003, affecting 4,361 engines. Investigation by the
Ministry of Land, Infrastructure, Transport and Tourism The , abbreviated MLIT, is a ministry of the Japanese government.国土交通省設置法
ensued.


Businesses


Energy and resources

* Energy systems * Process plants * Energy storage


Gas turbines

*
LM2500 The General Electric LM2500 is an industrial and marine gas turbine produced by GE Aviation. The LM2500 is a derivative of the General Electric CF6 aircraft engine. As of 2004, the U.S. Navy and at least 29 other navies had used a total of more ...
* LM6000


Aircraft engines

IHI develops, manufactures, and maintains aero engines, either by joint projects of which partners include
GE Aviation General Electric Company, doing business as GE Aerospace, is an American aircraft engine supplier that is headquartered in Evendale, Ohio, outside Cincinnati. It is the legal successor to the original General Electric Company founded in 1892, wh ...
,
Pratt & Whitney Pratt & Whitney is an American aerospace manufacturer with global service operations. It is a subsidiary of RTX Corporation (formerly Raytheon Technologies). Pratt & Whitney's aircraft engines are widely used in both civil aviation (especially ...
, and
Rolls-Royce Holdings Rolls-Royce Holdings plc is a British Multinational corporation, multinational aerospace and defence company incorporated in February 2011. The company owns Rolls-Royce, a business established in 1904 which today designs, manufactures and dist ...
, or the company itself.


In-house development

* Ishikawajima Ne-20 *
Ishikawajima-Harima J3 The Ishikawajima-Harima J3 was a Japanese turbojet aircraft engine. It was the first jet engine designed and built in Japan after the Second World War and was used to power the Fuji T-1 trainer and as a booster engine in the Kawasaki P-2J patro ...
*
Ishikawajima-Harima F3 The Ishikawajima-Harima Heavy Industries (IHI) F3 is a low bypass turbofan engine developed in Japan by Ishikawajima-Harima Heavy Industries for the Kawasaki T-4 jet trainer aircraft. The first prototype engine, the XF3, was manufactured in 198 ...
* Ishikawajima-Harima XF5 *
IHI Corporation F7 The IHI Corporation F7 is a small turbofan engine developed specifically for the Kawasaki P-1 maritime patrol aircraft by IHI Corporation. Development IHI started development work on the high bypass ratio turbofan engine in 1998, based on the ...
, F7-10 *
IHI Corporation XF9 The IHI XF9 is a low-bypass turbofan, afterburning turbofan engine developed by the Acquisition, Technology & Logistics Agency (ATLA) of Ministry of Defense (Japan), Ministry of Defense of Japan (MoD) and IHI Corporation. Overview The XF9 is a ...


Joint development

*
IAE V2500 The IAE V2500 is a two-shaft high-bypass turbofan engine built by International Aero Engines (IAE) which powers the Airbus A320 family, the McDonnell Douglas MD-90, and the Embraer C-390 Millennium. The engine's name is a combination of the ...
*
General Electric GEnx The General Electric GEnx ("General Electric Next-generation") is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production by GE Aerospace for the Boeing 747-8 and Boeing 787, 787. The GEnx succeeded the General Electri ...
*
General Electric GE90 The General Electric GE90 is a family of High-bypass turbofan engine, high-bypass turbofan aircraft engines built by GE Aerospace for the Boeing 777, with thrust ratings from . It entered service with British Airways in November 1995. It is one ...
*
General Electric CF34 The General Electric CF34 is a civilian high-bypass turbofan developed by GE Aviation from its TF34 military engine. The CF34 is used on a number of business and regional jets, including the Bombardier CRJ series, the Embraer E-Jets, and ...
* Pratt & Whitney PW1100G-JM


Licensed production

*
General Electric T700 The General Electric T700 and CT7 are a family of turboshaft and turboprop engines in the class. Design and development In 1967, General Electric began work on a new turboshaft engine demonstrator designated the "GE12" in response to US Army i ...
*
General Electric F110 The General Electric F110 is an afterburning turbofan jet engine produced by GE Aerospace (formerly GE Aviation). It was derived from the General Electric F101 as an alternative engine to the Pratt & Whitney F100 for powering tactical fighter a ...


Parts manufacturing

*
Rolls-Royce Trent The Rolls-Royce Trent is a family of high-bypass turbofans produced by Rolls-Royce Holdings, Rolls-Royce. It continues the Turbofan#Three-spool, three spool architecture of the Rolls-Royce RB211, RB211 with a maximum thrust ranging from . Lau ...


Space products

* S-type Sounding Rocket ( S-210, S-310, S-520, SS-520) * M-V Launch Vehicle * GX Launch Vehicle (Partner in
Galaxy Express Corporation GX was a design for an expendable launch system intended to compete in the commercial satellite launch sector. The system had developed by Galaxy Express Corporation, a joint venture between IHI Corporation (IHI), the Japan Aerospace Exploration ...
) * Epsilon Launch Vehicle *
SRB-A SRB-A is a series of Japanese solid-fueled rocket booster manufactured by IHI Corporation for use on the H-IIA, H-IIB, and Epsilon rockets. Design SRB-A is 2.5 meters in diameter, and 15.1 meters in length. Its casing is a carbon-fiber-reinforced ...
solid rocket booster for
H-IIA H-IIA (H-2A) is an active expendable launch system operated by Mitsubishi Heavy Industries (MHI) for the Japan Aerospace Exploration Agency. These liquid fuel rockets have been used to launch satellites into geostationary orbit; lunar orbi ...
/
H-IIB H-IIB (H2B) was an expendable space launch system jointly developed by the Japanese government's space agency JAXA and Mitsubishi Heavy Industries. It was used to launch the H-II Transfer Vehicle (HTV, or ''Kōnotori'') cargo spacecraft for ...
Launch Vehicle * BT-4 liquid-fuelled apogee motor (used in the Cygnus vehicle which are launched on
Atlas V Atlas V is an expendable launch system and the fifth major version in the Atlas (rocket family), Atlas launch vehicle family. It was developed by Lockheed Martin and has been operated by United Launch Alliance (ULA) since 2006. Primarily used to ...
and
Antares Antares is the brightest star in the constellation of Scorpius. It has the Bayer designation α Scorpii, which is Latinisation of names, Latinised to Alpha Scorpii. Often referred to as "the heart of the scorpion", Antares is flanked by ...
rockets)


Ships

Shipbuilding was the founding activity of Ishikawajima in 1853. It remains part of IHI's business activities, although it has been diluted through several mergers with other Japanese shipbuilding companies. In 1960, Ishikawajima Heavy Industries merged with Harima Shipbuilding & Engineering Company to establish the Ishikawajima-Harima Heavy Industries (IHI). IHI built ''Mutsu'', Japan's first nuclear powered ship with reactors from
Mitsubishi Heavy Industries is a Japanese Multinational corporation, multinational engineering, electrical equipment and electronics corporation headquartered in Tokyo, Japan. MHI is one of the core companies of the Mitsubishi Group and its automobile division is the prede ...
in 1969. In 1995, Marine United was established jointly with
Sumitomo Heavy Industries (SHI) is an integrated manufacturer of industrial machinery, defence products, ships, bridges and steel structure, equipment for environmental protection, including recycling, power transmission equipment, plastic molding machines, laser proce ...
. In 2013, IHI Marine United was merged with Universal Shipbuilding Corporation owned by the steel company
JFE Holdings is a corporation headquartered in Tokyo, Japan. It was formed in 2002 by the merger of and and owns JFE Steel, JFE Engineering and Japan Marine United. JFE is from Japan, Fe (the chemical element symbol of iron) and Engineering. In 2020, i ...
in order to newly establish a larger firm,
Japan Marine United (informally JMU) is a Japanese ship building marine engineering and service company headquartered in Yokohama, Japan. It's Japan's second largest shipbuilder after Imabari Shipbuilding, with shipyard facilities in Kure, Hiroshima, Yokohama, Na ...
Corporation (JMU), of which IHI remained a shareholder. In March 2020,
Japan Marine United (informally JMU) is a Japanese ship building marine engineering and service company headquartered in Yokohama, Japan. It's Japan's second largest shipbuilder after Imabari Shipbuilding, with shipyard facilities in Kure, Hiroshima, Yokohama, Na ...
(with 49% of shares) agreed to merge with
Imabari Shipbuilding is a major Japanese ship building, marine engineering, and service company headquartered in Imabari, Ehime, Imabari, Ehime Prefecture, Japan. It is Japan's largest shipbuilder both in terms of tonnage and sales revenue, with design, researc ...
(with 51% of shares) into a joint venture named
Nihon Shipyard Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea in th ...
(NSY), covering all ship types except
Liquefied natural gas Liquefied natural gas (LNG) is natural gas (predominantly methane, CH4, with some mixture of ethane, C2H6) that has been cooled to liquid form for ease and safety of non-pressurized storage or transport. It takes up about 1/600th the volume o ...
(LNG) tankers. This agreement became effective in January 2021. In parallel with the creation of Nihon Shipyard,
Imabari Shipbuilding is a major Japanese ship building, marine engineering, and service company headquartered in Imabari, Ehime, Imabari, Ehime Prefecture, Japan. It is Japan's largest shipbuilder both in terms of tonnage and sales revenue, with design, researc ...
bought 30% of JMU's shares, while IHI and
JFE Holdings is a corporation headquartered in Tokyo, Japan. It was formed in 2002 by the merger of and and owns JFE Steel, JFE Engineering and Japan Marine United. JFE is from Japan, Fe (the chemical element symbol of iron) and Engineering. In 2020, i ...
each kept 35% of JMU's capital. The merger between these two Japanese companies resulted in Nihon Shipyard becoming one of the largest marine-engineering and shipbuilding companies in the world, of which IHI remains a shareholder.


IHI Marine United Tokyo shipyard

Ships built at
Tokyo Tokyo, officially the Tokyo Metropolis, is the capital of Japan, capital and List of cities in Japan, most populous city in Japan. With a population of over 14 million in the city proper in 2023, it is List of largest cities, one of the most ...
: * '' Mutsu'', Japan's first nuclear powered vessel * , ''Murasame''-class destroyer * , ''Murasame'' class * , ''Murasame'' class * , ''Haruna''-class destroyer * , ''Towada''-class replenishment ship * , ''Asagiri''-class destroyer * , ''Asagiri'' class * , ''Asagiri'' class * , ''Hatsuyuki''-class destroyer * , ''Hatsuyuki'' class * , ''Hatsuyuki'' class * , ''Shirane''-class destroyer * , ''Shirane'' class * ,
Kongō-class destroyer The of guided-missile destroyers in the Japan Maritime Self-Defense Force are equipped with the Aegis Combat System, and is the first of few ship classes outside the United States to have that capability. Following a decision made in December 20 ...


IHI Marine United Yokohama shipyard

Ships built at
Yokohama is the List of cities in Japan, second-largest city in Japan by population as well as by area, and the country's most populous Municipalities of Japan, municipality. It is the capital and most populous city in Kanagawa Prefecture, with a popu ...
: * , ''Takanami''-class destroyer * , ''Takanami'' class * , ''Hyūga''-class helicopter destroyer * , ''Hyūga'' class * , ''Izumo''-class helicopter destroyer * , ''Izumo'' class * Globtik Tokyo, ''Globtik Tokyo''-class * Globtik London, ''Globtik Tokyo''-class * Nissei Maru, ''Globtik Tokyo''-class * Tokyo Maru, ''Tokyo Maru''-class


IHI Marine United Uraga shipyard

Ships built at Uraga: * , ''Takanami''-class destroyer * , ''Murasame''-class destroyer * , a training support vessel * , a test ship


IHI Amtec shipyard

Ships built at Aioi: * , a civilian ship


Steel structures

IHI Infrastructure Systems Co., Ltd., an IHI company, designs and constructs
steel frame Steel frame is a building technique with a "skeleton frame" of vertical steel columns and horizontal I-beams, constructed in a rectangular grid to support the floors, roof and walls of a building which are all attached to the frame. The develop ...
structures, bridges, and watergates.


Bridges

* Akashi-Kaikyo Bridge (Hyogo, Japan) *
Tatara Bridge The is a cable-stayed bridge that is part of the Nishiseto Expressway, commonly known as the Shimanami Kaidō しまなみ海道. The bridge has a center span of . As of 2010, it has the fourth longest main span of any cable-stayed bridge afte ...
(Hiroshima, Japan) *
Tokyo Bay Aqua-Line The , also known as the Trans-Tokyo Bay Expressway, is an expressway that is mainly made up of a bridge–tunnel combination across Tokyo Bay in Japan. It connects the city of Kawasaki in Kanagawa Prefecture with the city of Kisarazu in Chiba P ...
(Tokyo and Chiba, Japan) * Second Bosporus Bridge (
Istanbul Istanbul is the List of largest cities and towns in Turkey, largest city in Turkey, constituting the country's economic, cultural, and historical heart. With Demographics of Istanbul, a population over , it is home to 18% of the Demographics ...
, Turkey) * Binh Bridge (
Hanoi Hanoi ( ; ; ) is the Capital city, capital and List of cities in Vietnam, second-most populous city of Vietnam. The name "Hanoi" translates to "inside the river" (Hanoi is bordered by the Red River (Asia), Red and Black River (Asia), Black Riv ...
, Vietnam) *
Carquinez Bridge The Carquinez Bridge is a pair of parallel bridges spanning the Carquinez Strait at the northeastern end of San Francisco Bay. They form the part of Interstate 80 between Crockett and Vallejo, California, United States. The name Carquinez B ...
(
California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
, U.S.A) *
Strait of Messina Bridge The Strait of Messina Bridge () is a proposed suspension bridge across the Strait of Messina, connecting Torre Faro in Sicily with Villa San Giovanni on the Italian peninsula. The bridge has been controversial due to the impact of earthquake ...
(
Messina, Italy Messina ( , ; ; ; ) is a harbour city and the capital city, capital of the Italian Metropolitan City of Messina. It is the third largest city on the island of Sicily, and the 13th largest city in Italy, with a population of 216,918 inhabitants ...
, Design phase completed) *
Osman Gazi Bridge The Osman Gazi Bridge () is a suspension bridge spanning the Gulf of İzmit at its narrowest point, . The bridge links the Turkish city of Gebze to the Yalova Province and carries the O-5 motorway across the gulf. The bridge was opened on 1 Jul ...
(Turkey) *
Auckland Harbour Bridge The Auckland Harbour Bridge is an eight-lane motorway bridge over Waitematā Harbour in Auckland, New Zealand. It joins Saint Marys Bay, New Zealand, St Marys Bay on the Auckland city side with Northcote, Auckland, Northcote on the North Shore, ...
lane clip-on expansions (New Zealand) * Braila Bridge ( Braila, Romania, Underconstruction. To be completed in 2022)


References


External links


Official site

English part of the official site

Turkish part of Official siteIHI Marin Co., Ltd.IHI Fact Sheet 2008
{{Authority control Companies established in 1853 Japanese brands Aerospace companies Aircraft engine manufacturers of Japan Aerospace companies of Japan Gas turbine manufacturers Shipbuilding companies of Japan Nuclear technology companies of Japan Defense companies of Japan Companies listed on the Tokyo Stock Exchange Companies in the Nikkei 225 Engine manufacturers of Japan Strait of Messina Bridge Diesel engine manufacturers Marine engine manufacturers Gas engine manufacturers Turbocharger manufacturers