Continuation of Research and Development Activities

「The company invested ¥641 million in R&D during the fiscal year. This environmentally considerate concrete uses expanded waste-glass aggregate as coarse aggregate, making it easier to demolish. It newly developed a simplified version of AI Diagnostician that can perform assessments using only images taken with a smartphone camera. It has also begun operating an assistant AI to reduce the burden on site managers.」

「Research and development expenses ¥565 million ¥641 million」

「The company invested ¥565 million in R&D during the fiscal year. To address concrete deterioration, it developed a concrete protection coating method using an environmentally considerate water-based paint. It developed and rolled out an iPad version of AI Diagnostician, which uses AI to assess deterioration in concrete structures and propose repairs. It also newly developed a simplified version of AI Diagnostician that can perform assessments using only images taken with a smartphone camera.」

「The company invested ¥626 million in R&D during the fiscal year. It developed and commercialized a gel product containing lithium nitrite after verifying its effectiveness at the company's research institute and in the field. Internal implementation of AI Diagnostician, which assesses deterioration in concrete structures and proposes repairs using AI, has been completed. The company has begun developing an assistant AI to reduce the burden on site managers.」

「Total R&D expenses for the cumulative third quarter were ¥464 million. There were no material changes in the status of the Group's R&D activities during the cumulative third quarter.」

「Total R&D expenses for the cumulative second quarter were ¥312 million. There were no material changes in the status of the Group's R&D activities during the cumulative second quarter.」

「Total R&D expenses for the cumulative first quarter were ¥140 million. There were no material changes in the status of the Group's R&D activities during the cumulative first quarter.」

「The company invested ¥690 million in R&D during the fiscal year. It completed development of a water-based concrete surface-coating method that requires fewer construction steps, can be completed in less time and is easy to handle. Internal implementation of AI Diagnostician, which was trained through deep learning on the company's extensive repair-case data, has also been completed.」

「Total R&D expenses for the cumulative second quarter were ¥335 million. There were no material changes in the status of the Group's R&D activities during the cumulative second quarter.」

「Total R&D expenses for the cumulative first quarter were ¥133 million. There were no material changes in the status of the Group's R&D activities during the cumulative first quarter.」

「The company invested ¥668 million in R&D during the fiscal year. In the past, identifying the causes of deterioration in concrete structures and designing repairs required detailed surveys and material analysis of collected samples. The company developed an AI system for deterioration assessment and repair-method selection as a productivity tool for this process.」

「Total R&D expenses for the cumulative third quarter were ¥476 million. There were no material changes in the status of the Group's R&D activities during the cumulative third quarter.」

「Total R&D expenses for the cumulative first quarter were ¥168 million. There were no material changes in the status of the Group's R&D activities during the cumulative first quarter.」

「The company invested ¥675 million in R&D during the fiscal year. It has begun developing a system that uses AI image diagnostics to identify the causes of structural deterioration and propose repair methods, with the aim of improving repair-design productivity, as well as a safety-management support system that uses AI voice diagnostics to improve health and safety standards at construction sites.」

「Total R&D expenses for the cumulative third quarter were ¥450 million. There were no material changes in the status of the Group's R&D activities during the cumulative third quarter.」

「Total R&D expenses for the cumulative second quarter were ¥310 million. There were no material changes in the status of the Group's R&D activities during the cumulative second quarter.」

「Total R&D expenses for the cumulative first quarter were ¥140 million. There were no material changes in the status of the Group's R&D activities during the cumulative first quarter.」

「The company invested ¥676 million in R&D during the fiscal year. It is currently conducting joint research with relevant organizations and construction companies on proprietary repair methods tailored to the specific needs of each organization, and has confirmed their effectiveness through trial construction at actual facilities. To further improve productivity, the company has begun developing an AI slab deterioration assessment system that uses image processing to determine the service life of road bridge deck slabs.」

「Total R&D expenses for the cumulative third quarter were ¥411 million. There were no material changes in the status of the Group's R&D activities during the cumulative third quarter.」

「Total R&D expenses for the cumulative second quarter were ¥276 million. There were no material changes in the status of the Group's R&D activities during the cumulative second quarter.」

「Total R&D expenses for the cumulative third quarter were ¥470 million. There were no material changes in the status of the Group's R&D activities during the cumulative third quarter.」

「Total R&D expenses for the cumulative second quarter were ¥339 million. There were no material changes in the status of the Group's R&D activities during the cumulative second quarter.」

「Total R&D expenses for the cumulative first quarter were ¥164 million. There were no material changes in the status of the Group's R&D activities during the cumulative first quarter.」

「Total R&D expenses for the cumulative third quarter were ¥274 million. There were no material changes in the status of the Group's R&D activities during the cumulative third quarter.」

「Total R&D expenses for the cumulative second quarter were ¥187 million. There were no material changes in the status of the Group's R&D activities during the cumulative second quarter.」

「Total R&D expenses for the cumulative first quarter were ¥93 million. There were no material changes in the status of the Group's R&D activities during the cumulative first quarter.」

「The Group invested ¥364 million in research and development during the current consolidated fiscal year. The Group's research and development activities primarily relate to domestic construction and are not presented by segment. The Group is currently conducting joint research into proprietary repair methods tailored to the specific needs of individual institutions, and is verifying their effectiveness through trial construction at actual facilities. The Company's Repair Engineering Research Institute has long had a rubber-tire wheel-load testing machine capable of reproducing fatigue deterioration in road bridge deck slabs caused by wheel loads. The Company is currently planning to install a steel-wheel wheel-load testing machine that will enable more pronounced testing, as well as the latest composite-cycle testing machine capable of accelerating and reproducing coating deterioration on steel bridges.」

「Total research and development expenses during the first nine months of the current consolidated fiscal year were ¥256 million. There were no material changes in the status of the Group's research and development activities during the first nine months of the current consolidated fiscal year.」

「Total research and development expenses during the first six months of the current consolidated fiscal year were ¥168 million. There were no material changes in the status of the Group's research and development activities during the first six months of the current consolidated fiscal year.」

「Total research and development expenses during the first six months of the current consolidated fiscal year were ¥78 million. There were no material changes in the status of the Group's research and development activities during the first six months of the current consolidated fiscal year.」