Hiroshi Hasegawa

Designs, constructs, maintains and repairs bridges & manufactures and sales composite and steel structures

Miyaji Engineering Co., Ltd. is a Japanese company specializing in steel structures, with a focus on bridge construction, building projects, maintenance, and fiber-reinforced plastic products. The company is based in Tokyo, Japan. The company is involved in major infrastructure projects and integrates advanced technologies and diverse construction methods, offering products such as composite deck slabs, inspection walkways, and monitoring systems for efficiency and safety. Miyaji Engineering operates equipment centers for rapid nationwide deployment and provides equipment leasing services. It conducts maintenance and seismic retrofitting of roads, railway bridges, and steel structures using specialized techniques. The company has expanded into the power generation sector by operating a solar power plant that reduces CO2 emissions and fossil fuel consumption. Miyaji Engineering aligns its operations with the United Nations Sustainable Development Goals, promoting sustainable infrastructure, quality education, decent work environments, and renewable energy.

Part of MIYAJI ENGINEERING GROUP, INC., MM Bridge Co., Ltd. is a Japanese comprehensive engineering company specializing in the design, construction, and maintenance of bridges and steel structures. The company is based in Hiroshima, Japan. MM Bridge Co. operates in five main areas: bridges, coastal structures, disaster prevention, environmental technologies, and public-private partnership/private finance initiative projects. The company manages all aspects of bridge construction, including design, fabrication, installation, and maintenance, utilizing advanced technologies for seismic and vibration control, wind resistance, and ICT. Its coastal structures incorporate shipbuilding technology to produce floating piers, breakwaters, caissons, jackets, and immersed tunnels for marine facilities. MM Bridge Co. develops disaster prevention solutions such as seismic dampers, vibration control devices, and tsunami countermeasures. The company also pursues environmental initiatives like coral reef regeneration and clean energy projects, including wave power generation. Recent projects include the Kesennuma Bay Crossing Bridge, restoration of the Daiichi Shirakawa Bridge, the Tate Elevated Bridge, and renovation of the Dojima Bridge.