Research and Development to Improve Construction Quality and Productivity and Meet Future Needs
First written in FY2016. 20 of 29 entries say "Restated". Latest entry: FY2026.
18 other companies' latest entry also says "Advanced".
- FY2026AdvancedAnnual report
「Total R&D expenses for the fiscal year were ¥24.2 billion, and the main results were as follows.」
R&D expenses of ¥24.2 billion were recorded. For A4CSEL, a series of embankment construction operations was automated through coordination among 4 types of equipment: backhoes, articulated dump trucks, bulldozers and vibratory rollers. AI-based bridge condition assessments and an automated rebar prefabrication method were also implemented. - 2026-06-03AdvancedGeneral Meetings of Shareholders
「Promote the use of AI in the automatic preparation of estimates and schedules, on-site safety management support, bridge condition assessments and other areas.」
The scope of research and development and digital technology implementation was specified as estimates, scheduling, safety management and bridge assessments. - FY2024AdvancedAnnual report
「Total R&D expenses for the fiscal year were ¥20.7 billion, and the main results were as follows.」
R&D expenses were ¥20.7 billion. The application of R&D results to actual construction projects and facilities progressed, including the first introduction of KaCLASS, approximately double the setting-out productivity using RoboPrin, and full automation from CSG production through placement using A4CSEL. - FY2024-Q1RestatedAnnual report
「The total R&D expenses of the Group for the first three months of the fiscal year were ¥3.7 billion.」
R&D activities continued, and total R&D expenses of ¥3.7 billion were reported for the first three months of the fiscal year. No material changes to the objectives or policies for R&D are reported. - FY2023AdvancedAnnual report
「Total R&D expenses for the fiscal year were ¥18.2 billion, and the main results were as follows.」
R&D expenses of ¥18.2 billion were recorded. The disclosed results included the first application of a fully automated tunnel lining concrete placement system in an actual construction project, a smart deck replacement system, and a domestic record monthly placement volume of 271,000 m³ for dam construction using A4CSEL, demonstrating the implementation of technologies and the setting of new records. - FY2023-Q3RestatedAnnual report
「The total R&D expenses of the Group for the first nine months of the fiscal year were ¥11.5 billion.」
R&D activities continued, and total R&D expenses of ¥11.5 billion were reported for the first nine months of the fiscal year. No material changes to the objectives or policies for R&D are reported. - FY2023-Q2RestatedAnnual report
「The total R&D expenses of the Group for the first six months of the fiscal year were ¥7.3 billion.」
The continuation of R&D activities and total R&D expenses of ¥7.3 billion for the first six months of the fiscal year are disclosed. No material changes to the objectives or policies for R&D are reported. - FY2023-Q1RestatedAnnual report
「The total R&D expenses of the Group for the first three months of the fiscal year were ¥3.4 billion.」
R&D activities continued, and total R&D expenses of ¥3.4 billion were reported for the first three months of the fiscal year. No material changes to the objectives or policies for R&D are reported. - FY2022-Q3RestatedAnnual report
「The total R&D expenses of the Group for the first nine months of the fiscal year were ¥10.8 billion.」
R&D activities continued, and total R&D expenses of ¥10.8 billion were reported for the first nine months of the fiscal year. No material changes to the objectives or policies for R&D are reported. - FY2022-Q1RestatedAnnual report
「The total R&D expenses of the Group for the first three months of the fiscal year were ¥2.8 billion.」
R&D activities continued, and total R&D expenses of ¥2.8 billion were reported for the first three months of the fiscal year. No material changes to the objectives or policies for R&D are reported. - FY2021AdvancedAnnual report
「Total R&D expenses for the fiscal year were ¥15.0 billion, and the main results were as follows. An autonomous mobility system equipped with AI technology was developed for robots used at construction sites, and the introduction of AI cleaning robots at sites in the Tokyo metropolitan area began. In addition, the digital twin platform Kajima Mirrored Construction was developed, and operation began of a program that quantifies and visualizes construction progress by component.」
R&D expenses of ¥15.0 billion were recorded. Implementation of next-generation construction production systems progressed, including the deployment of AI autonomous mobile robots at worksites, the development and launch of operations for a digital twin platform, and fully automated placement of tunnel lining concrete. - FY2021-Q3RestatedAnnual report
「The total R&D expenses of the Group for the first nine months of the fiscal year were ¥9.2 billion.」
The continuation of R&D activities and total R&D expenses of ¥9.2 billion for the first nine months of the fiscal year are disclosed. No material changes to the objectives or policies for R&D are reported. - FY2021-Q2RestatedAnnual report
「The total R&D expenses of the Group for the first six months of the fiscal year were ¥5.8 billion.」
The continuation of R&D activities and total R&D expenses of ¥5.8 billion for the first six months of the fiscal year are disclosed. No material changes to the objectives or policies for R&D are reported. - FY2021-Q1RestatedAnnual report
「The total R&D expenses of the Group for the first three months of the fiscal year were ¥2.5 billion.」
The continuation of R&D activities and total R&D expenses of ¥2.5 billion for the first three months of the fiscal year are disclosed. No material changes to the objectives or policies for R&D are reported. - FY2020AdvancedAnnual report
「Total R&D expenses for the fiscal year were ¥16.4 billion, and the main results were as follows. The automated construction technology A4CSEL was in the final development stage ahead of its full-scale introduction in fiscal 2020. In addition, labor hours per unit of construction area were reduced by 20% at a demonstration site for Kajima Smart Production.」
R&D expenses of ¥16.4 billion were recorded. A4CSEL reached the final development stage ahead of its full-scale introduction in fiscal 2020, and labor hours were reduced by 20% at a smart production demonstration site. - FY2020-Q3RestatedAnnual report
「The total R&D expenses of the Group for the first nine months of the fiscal year were ¥10.5 billion.」
R&D activities continued, and total R&D expenses of ¥10.5 billion were reported for the first nine months of the fiscal year. No changes to the objectives or policies for R&D are reported. - FY2020-Q2RestatedAnnual report
「The total R&D expenses of the Group for the first six months of the fiscal year were ¥6.2 billion.」
The continuation of R&D activities and total R&D expenses of ¥6.2 billion for the first six months of the fiscal year are disclosed. No material changes to the objectives or policies for R&D are reported. - FY2020-Q1RestatedAnnual report
「The Group’s total R&D expenses for the three-month period ended in the first quarter of the current consolidated fiscal year were ¥2.6 billion.」
The continuation of R&D activities and total R&D expenses of ¥2.6 billion for the first nine months of the fiscal year are disclosed. No material changes to the objectives or policies for R&D are reported. - FY2019AdvancedAnnual report
「Total R&D expenses for the current consolidated fiscal year were ¥13.9 billion, and the main achievements were as follows. The Group has automated 3 types of construction machinery and introduced them into actual construction projects. In 2018, it used 7 automated construction machines to carry out fully automated placement of core material in the main construction work for the Koishihara River Dam in Asakura, Fukuoka Prefecture. For the next trapezoidal CSG dam construction project, the Group plans to introduce more than 20 automated construction machines and further develop the site’s conversion into a factory-like production system.」
In addition to ¥13.9 billion in R&D expenses, fully automated construction using 7 automated construction machines through A4CSEL was carried out on an actual project. A plan to introduce more than 20 machines in the next project was also reported, indicating progress in implementing a construction production system. - FY2019-Q3RestatedAnnual report
「The Group’s total R&D expenses for the nine-month period ended in the third quarter of the current consolidated fiscal year were ¥8.8 billion.」
Continued R&D activity and total R&D expenses of ¥8.8 billion for the nine-month period ended in the third quarter of the current consolidated fiscal year were reported. No material changes to the objectives or policy for R&D were reported. - FY2019-Q2RestatedAnnual report
「The Group’s total R&D expenses for the six-month period ended in the second quarter of the current consolidated fiscal year were ¥5.3 billion.」
Continued R&D activity and total R&D expenses of ¥5.3 billion for the six-month period ended in the second quarter of the current consolidated fiscal year were reported. No material changes to the objectives or policy for R&D were reported. - FY2019-Q1RestatedAnnual report
「The Group’s total R&D expenses for the three-month period ended in the first quarter of the current consolidated fiscal year were ¥2.4 billion.」
R&D activities continued, with total R&D expenses of ¥2.4 billion reported for the three-month period ended in the first quarter of the current consolidated fiscal year. No material changes to the objectives or policy for R&D were reported. - FY2018AdvancedAnnual report
「Total R&D expenses for the current consolidated fiscal year were ¥10.3 billion, and the main achievements were as follows. The resulting method made it possible to blast to depths approximately 5–6 times greater than previously in a single operation. Application to the demolition of large existing piles in an urban redevelopment project confirmed significant reductions in noise and vibration and a shorter demolition period.」
In addition to ¥10.3 billion in R&D expenses, results from applying a method for demolishing existing piles were reported. Other specific technological achievements related to quality and productivity improvements included a method enabling an approximately 90% reduction in the number of workers and an approximately 50% reduction in process time, as well as an automated rebar inspection system. - FY2018-Q3RestatedAnnual report
「The Group’s total R&D expenses for the nine-month period ended in the third quarter of the current consolidated fiscal year were ¥6.6 billion.」
Continued R&D activity and total R&D expenses of ¥6.6 billion for the nine-month period ended in the third quarter of the current consolidated fiscal year were reported. No material changes to the objectives or policy for R&D were reported. - FY2018-Q2RestatedAnnual report
「The Group’s total R&D expenses for the six-month period ended in the second quarter of the current consolidated fiscal year were ¥4.0 billion.」
R&D activities continued, with total R&D expenses of ¥4.0 billion reported for the six-month period ended in the second quarter of the current consolidated fiscal year. No changes to the objectives or policy for R&D were reported. - FY2018-Q1RestatedAnnual report
「The Group’s total R&D expenses for the three-month period ended in the first quarter of the current consolidated fiscal year were ¥1.8 billion.」
R&D activities continued, with total R&D expenses of ¥1.8 billion reported for the three-month period ended in the first quarter of the current consolidated fiscal year. No changes to the objectives or policy for R&D were reported. - FY2017-Q3RestatedAnnual report
「The Group’s total R&D expenses for the nine-month period ended in the third quarter of the current consolidated fiscal year were ¥5.5 billion.」
Continued R&D activity was confirmed, with total R&D expenses of ¥5.5 billion reported for the nine-month period ended in the third quarter of the current consolidated fiscal year. No changes to the objectives or policy for R&D were reported. - FY2017-Q2RestatedAnnual report
「The Group’s total R&D expenses for the six-month period ended in the second quarter of the current consolidated fiscal year were ¥3.5 billion.」
R&D activities continued, with total R&D expenses of ¥3.5 billion reported for the six-month period ended in the second quarter of the current consolidated fiscal year. - FY2016First statedAnnual report
「To address the increasingly diverse needs of society and customers and contribute to order intake and production, the Group conducts R&D efficiently across a broad range of areas, from technologies that improve the quality and productivity of its construction business to technologies that anticipate future needs. It also promotes joint research with universities, public institutions and other companies.」
The purposes of R&D were described as contributing to order intake and production, improving quality and productivity, and addressing future needs. Joint research with universities, public institutions and other companies was also mentioned.