Our 3 business fields to support Social Infrastructure
Manufacture, supply and piling construction for building foundation
Schools, Medium-size apartments, Large warehouses, Shopping centers
There are a lot of concrete piles used in the foundations of heavy buildings based on anti-earthquake design.Our engineers successfully developed piles with much strength than the previous line-ups.
Manufacture, supply and construction of concrete poles
Power lines, Telecommunications, Transportation, Leisure, Disaster prevention
We started R&D works of designing concrete utility poles instead of the one made by wood, responding to a tendency of preventing timber resources. We played a big role of a social mission by making evolutional invention "NC-Type" PC wire concrete utility pole which delivered much higher strength by applying tension to steel wires. Currently, we are achieving 30% of the domestic market share, which reflects 70% by total group.
Civil engineering product business
Manufacture and supply of civil engineering pre-cast products
PC Walls, Concrete segment of the tunnel, Soundproof walls.
As a comprehensive concrete product manufacturer, we manufacture and provide many kinds of precast products. As we present some showcase of the products lineup as PC Walls, Concrete segment of the tunnel, and Soundproof walls.
We contribute to a safe, secure, and affluent society
We may find concrete products all around us which has been playing a big role to our lives. Based on the corporate philosophy, “ We contribute to a safe, secure, and affluent society through concrete”, we are creating a foundation supporting the everyday life of people.
We provide products and construction services which meet all needs through a wide product range.
Based on research and development works focusing on the needs of society, we have a wide range of products and construction services for various types of applications, providing products and construction services which appropriately suit to our customer needs.
"NC poles" play a big role in city power lines, telecommunications, and railroads as utility. We maintain the highest market share in the industry. These poles are active in many kinds of use as concrete pillars in applications such as antennas, catch nets, and lighting, by taking advantage of their excellent concrete strength and durability.
We have been developing new technology of products and construction methods to meet a wide variety of construction needs to suit different buildings and soil conditions and have implemented much economic plan for construction cost reduction by using diverse products and piling construction methods.
Manufacturing in an advanced-equipped factory, precast concrete products deliver high precision and consistent quality, and also shorten construction period by reducing on-site work. We present a lineup of products that can be active in various applications of civil engineering and construction fields such as roads, rivers, and railroads.
Tireless pursuit of ultimate quality
We are at a time that corporate responsibility and evaluation is required for product quality than ever before. Our company ensures high compliance with JIS and internal standards through strict inspections of receiving raw materials, manufacturing, and shipping. Furthermore, we also provide an appropriate management service during construction work which is evaluated as much reliable from our customers.
We are engaging in factory operation based on quality first policy by supplying an assistance work of quality control and manufacturing improvement, and information sharing held on a regular basis.
We maintain a strict construction management through providing appointed engineers and various qualified personnel. Furthermore, we strive to improve customer satisfaction through quality patrols at construction sites.
We acquired ISO9001 certification in June 2000. We strictly comply with quality management systems, targeting on daily maintenance and improvement.
Comprehensive support through the combined power of total group
We have a strong company policy in operation as we don’t simply engage in manufacturing and supply of the products, but also in organizing consistent response to customer needs including a support after a sale, by unifying a total power of each specialty from our group companies of manufacturing, construction and various services.
Our manufacturing network consists to 17 production facilities in Japan, and we also supply production and construction technology for 13 concrete pole and pile manufacturers from Hokkaido to Okinawa, on purpose of constructing stable supply network of high quality products.
We have our pride as manufacturer which makes us responsible until construction work with appropriate procedure and methods.
We have built a concrete pole diagnostics engineering system and have started performing maintenance business on poles. We also engage in technical supporting work through maintenance or replacement idea suggested as specialist.
Expanding technical skills cultivated in Japan to the world
Being based on technology and knowhow obtained in Japanese domestic market, we organize NC brand quality also outside the country to contribute to local infrastructure development through establishment of production and supply facilities and technical assistance of piling construction, focusing on South East Asian market.MORE
Caring for the environment, and contributing to coexistence with the global environment
As a manufacturer that handles a variety of raw materials, we work in an industry on the cutting edge of environmental problems. We are contributing to building a sustainable society by recycling the sludge that is produced during the manufacturing process for concrete products, and reducing CO2 emissions by utilizing the National Certifying System.MORE
Technical tradition passed down repeatedly since our establishment
Ever since we took our first step towards innovation in our industry with the development of the "NC-type" PC wire concrete pole, we have made continuous work on research and development, to gain the highest trust from our customers, and to contribute to useful infrastructure development as a leading company in concrete products.
Revolutionary development in the industry
We started our business as a manufacturer of concrete troughs, supplying for the national railways in August 1948 in the midst of the postwar devastation. With the demand at the time to change to other materials due to the shortages of timber, we developed the "NC-type" PC wire concrete pole in 1951 and established our position at the top of the industry in the market.
Expanding our technology of poles into pile development
We extended into pile industry with the successful development of precast piles and ONA piles using technology of NC poles which also made us be listed on the second section of the Tokyo Stock Exchange in 1961, and then promote to the first section of the same exchange in 1967.
Challenge for invention of various precast products
We also made successful development of various concrete precast products for bridges, underground, and tunnels, led by NC precast wall which was originally expanded its manufacturing technology from concrete piles.
Change to a group business system
As we entered the 2000s, we expanded our production bases by utilizing the knowledge and technology in manufacturing facilities we had gained, although we responded to a market demand by two factory operations in east and west for many years. We also began working on development of construction methods that would meet the needs of the time. Though at present, we have established and operated by a group business system consisting of 17 consolidated subsidiaries and others, we have delivered sustainable growth based on passing down technology repeatedly since our company was founded.