1864
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| Company foundation
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In 1864, the company was founded in Shimizunakamachi by Ito Hikoemon (born 1840) as a blacksmithing business for agricultural and ship equipment. The business name was “Kajihiko.”
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1906
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| Production of petroleum engines begins
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The company produced 26 petroleum engine units until hot-bulb engines were developed in the early Taisho era.
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1924
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| Production of 16PS diesel engine with airless oil-spray
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In 1924, Tokutaro Ito inherited the business after working at the NIIGATA ENGINEERING CO., LTD. (current Niigata Power Systems). He started the development of diesel engines. |
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1933
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| The company was relocated to present location.
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From Nihondaira in 1937 |
| From Nihondaira on February 20, 2011 (74 years later) |
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1935
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| A large number of 120PS and 300PS diesel engines were exported to foreign countries.
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1944
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| The company was changed to a joint-stock company.
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1954
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| Business alliance with Sumitomo Corporation
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1955
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| Four-stroke direct connected low-speed diesel engines (2,000ps, 10,000ps) Development/Manufacture (1985)
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1959
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| Production of rotary blowers begins
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1972
| | Production of automatic generation line for propane gas containers.
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1973
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| By improving power output, M55HUS-type became the largest power generating engine in the world. (4-stroke main engine for ships)
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1975
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| Developed low-noise IRS-type blowers
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1992
| | NC horizontal boring and milling machines were installed for large size casing machining.
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1993
| | Announced the world’s first large three-stage integrated vacuum pump
| The machine has a structure in which 3 units of vacuum pumps are integrated into one unit. Inside, the rotor is cooled through water circulation, and each connecting pipe is jacketed, eliminating the need for intercoolers and after coolers. Some technology from engine development was applied into blower design for higher performance. |
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1997
| | Established SIE, a joint venture in Thailand
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2001
| | A new SIE factory was completed
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2002
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| ISO9001 certificated
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2003
| | Started the sales of high-pressure compatible J-type blowers
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2005
| | Started the sales of high-stiffness IRT-type blowers
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2006
| | Established the Tokyo Branch and the Chiba Service Center
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2008
| | The No.2 machinery plant was built for machining capability enhancement.
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2010
| | Started the sales of compact, high-speed IRH-type blowers
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2011
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| The No.4 machinery plant was built for introducing super-large rotor machining.
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2012
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| Developed ultra-large vacuum pumps IRV-9 and IRV-7
| New 95-series blower (IRV-9 type), the company’s largest model |
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2014
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| Held events to commemorate the 150th anniversary of the company's founding.
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2018
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| Developed the world's largest-class stainless steel B2 600AJS for gas pressure feed and delivered it to a petrochemical plant in China
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2019
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| Built painting plant and new assembly plant for large size blower.
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