P.S. Mitsubishi has been leading the PC technology and industry in Japan since the construction of the first PC bridge in the country.
History |
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1951 |
Establishment of the first prestressed concrete factory at Nanao Shipyard of East-Japan Heavy Industries
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1952 |
Establishment of PS Concrete as the first prestressed concrete business organization in Japan, taking over Nanao Shipyard from East-Japan Heavy Industries which became Mitsubishi Heavy Industries,Ltd
- Civil Engineering
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- Business expansion from PC crosstie manufacturing to PC bridges
- Construction of the first PC bridge in Japan
- Architecture
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- Development of the precast WT slab
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1960 |
Establishment of Shinryo Construction by ten Mitsubishi group companies |
1962 |
Stock listing on the second section of the Tokyo Stock Exchange |
1969 |
Company name change from Shinryo Construction to Mitsubishi Construction
- Civil Engineering
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- Breakthrough in rapid construction with cast-in-place concrete on scaffolding for high speed rail train and highway projects
- Architecture
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- Development of the HPC bracing building method
- Development of the Palm Framing structure
- Development of the PS assembling pool
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1975 |
Entry to oversea business
- Civil Engineering
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- Entry to Prestressed concrete pavement
- Development of Various original construction equipments
- Development of Various new construction methods for long span bridges and new bridge structures
- Architecture
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- Development of the Uni-Frame structure
- Development of the thin-walled framing structure
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1985 |
Entry to nuclear business |
1988 |
Opening the R&D Laboratory in Omiya |
1989 |
The first corporate joint venture establishment in Indonesia
- Civil Engineering
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- Development of the concrete lining method with pre-erected composite arch (CLCA method)
- Development in Various non-bridge fields; PCCV, disaster-prevention facilities, airport runway, pavement life-up
- Application of precast PC pavement to airport runway
- Architecture
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- Joint development of seismic isolation foundation system
- Construction of the first retractable roof building
- Development of the CS slab (prestressed concrete slab)
- Development of a middle high building system
- Development of the PC precast assembling construction
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1991 |
Company name change from PS Concrete to PS Corporation |
1995 |
Award of the first Indonesia development contribution prize by the Indonesian government commemorating 50 year anniversary of independence |
1996 |
Stock listing on the first section of the Tokyo Stock Exchange |
1997 |
Acquisition of ISO9002 certificate |
1998 |
Transition from ISO9002 to ISO9001
- Civil Engineering
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- Continuous development of new materials (construction of the world first carbon fiber PC bridge)
- Development of PC-steel composite bridges (corrugated steel web bridge)
- Architecture
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- Acquisition of technical assessment for the underground continuous wall method (jointly developed)
- Acquisition of technical assessment and the first construction of the seismic isolation building system
- Construction of the first membrane structure
- Development of high-strength high-performance concrete construction technology
- Development of the new PC composite slab
- Development of ultra high-rise RC building technology
- Acquisition of technical assessment for the MIX building (RC-steel composite building)
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2000 |
Acquisition of ISO14001 certificate |
2002 |
Establishment of P.S. Mitsubishi Construction by a merger of PS Corporation and Mitsubishi Construction Opening the R&D Laboratory in Odawara |
2004 |
Establishment of the US corporation |
2005 |
Establishment of first factory in Vietnam by the joint venture with a Vietnamese company |
2007 |
Establishment of PS Concrete Co.,Ltd
- Civil Engineering
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- Acquisition of technical certificate for H-shaped PC piles
- Acquisition of technical certificate for Ducks Beam (Ultra high strength mortar)
- Practical application of Ducks Pole (Ultra high strength mortar)
- Practical application of pretensioned web
- Development of SPAD as a mass application system of Eco Tube
- Practical application of COR-T girder (Corrugated web T-girder)
- Development of underpass construction using H-shaped PC piles
- Development in underground construction (Micro method,PCNet segment, Press-in precast caisson)
- Entry to the maintenance field (PC confined, Titanium gird corrosion protection)
- Acquisition of technical accreditation for non-destructive diagnosis and repair of RC structure
- Architecture
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- Acquisition of technical assessment for the PSMIX building (RC-steel composite building)
- Construction of a 30-floor ultra high-rise seismic isolated RC residential building
- Acquisition of technical assessment for the PCaPC external framing seismic strengthening method
- Acquisition of technical assessment for the PreColumn method (jointly developed)
- Acquisition of technical assessment and the first construction of an ultra high-rise RC building
- Construction of the first CFT (Concrete filled steel tube) building
- Construction of the first ultra high-rise RC building
- Acquisition of performance certificate for the ATMOMiK composite wall (jointly developed)
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2010 |
- Civil Engineering
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- Completion of Colorado River Bridge
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