りけん List of Products and Services

This is a solar-powered self-luminous guidance marker that improves visibility through special optical design while reducing power consumption. It provides a safer and more comfortable traffic environment in areas (routes) where attention is needed.

• Dam construction
• Other civil engineering works

Our prefabricated composite pipe is based on a rigid polyurethane foam (foamed plastic insulation material) filled with foam, which complies with the Japanese Industrial Standards (JIS) for insulation and refrigeration construction standards (JISA9501). It is an insulated pipe that has been developed through research and development based on technology and experience, offering excellent insulation performance.

• Other civil engineering works
• Insulation work
• Prefab

To study natural conditions such as wind, snow, and terrain, and to utilize their properties with a deep understanding of the power of nature. Our company is based on the idea of controlling nature with nature itself, and we propose the installation of more effective snow and wind barriers.

• Waste treatment facilities
• Erosion control works
• Other civil engineering works