Research and Development of Technologies to Improve Construction Efficiency and Safety and Expand into New Fields

「For cable-yarding operations, the Company developed a new method that simplifies preparatory work such as installing and removing cables and enables timber to be collected over a wide area in a single setup, by introducing the “Taihei Cable-Yarding Method,” which uses poles improved from the Company’s proprietary “Safety Stage” product. In 2025, the Company conducted trial operations by a local forestry operator in Murakami, Niigata Prefecture, the site of a Green Project, and verified the volume of timber collected, productivity and profitability.」

「Total R&D expenses for the six-month period ended the first half were ¥31 million. There were no material changes in the status of R&D activities.」

「The Company has filed the 2 patents listed below in connection with this matter.」

「Total R&D expenses for the six-month period ended the first half were ¥26 million. There were no material changes in the status of R&D activities.」

「To address the labor shortage and meet customer expectations, the Company is developing standardized methods for bending electrical conduits. It aims to create an environment in which conduit-bending work, which normally requires the experience and expertise of skilled workers, can be performed easily by workers other than licensed electricians. During the fiscal year, the Company developed a conduit-bending machine and accessories and a supporting application, conducted demonstration tests and improvements for standardizing the bending work, and established the method. In the following fiscal year, it will roll out the method at work sites for actual operation and introduce it into future construction projects to address the labor shortage.」

「Total R&D expenses for the nine-month period ended the third quarter were ¥152 million. There were no material changes in the status of R&D activities.」

「We worked to establish a new method specializing in the dismantling of onshore wind power generation facilities and a new method for collecting timber as part of the Company's Green Project.」

「During the current consolidated fiscal year, in the onshore wind power field, we began developing the jack-down dismantling method, a patented construction method (new method) obtained by the Company, with the aim of reducing costs, enabling construction in limited space, and shortening construction periods by eliminating the need for large cranes. The development of this method was selected for a grant program of NEDO (New Energy and Industrial Technology Development Organization), and from October to December we conducted demonstration tests in Muroran, Hokkaido, using a full-scale jack-up platform and a simulated tower for a 1.5 MW-class wind turbine.」

「We are also advancing new initiatives, including the development of new construction methods that apply our technology to forestry and the replacement of wind power generation facilities.」

「We are also advancing new initiatives, including the development of new construction methods that apply our technology to forestry and the replacement of wind power generation facilities.」

「Total research and development expenses for the first quarter of the current consolidated cumulative period were ¥45 million.」

「During the current consolidated fiscal year, we obtained a patent for a new offshore wind construction method that applies and further improves our Taihei Jack System. To assess the feasibility of this new method, we conducted design and structural analyses, wind tunnel tests, and design verification.」

「Research and development expenses for the consolidated cumulative third quarter were ¥45 million. There were no material changes in the status of research and development activities.」

「Total R&D expenses for the cumulative first quarter of the current consolidated fiscal year were ¥14 million.」

「During the current consolidated fiscal year, we obtained a patent for a new offshore wind construction method that applies and further improves our Taihei Jack System. To assess the feasibility of this new method, we conducted a mock-up test using a 25 m simulated tower, confirmed construction performance, and evaluated safety. The method received high evaluations from various wind power generation operators.」

「Research and development expenses for the consolidated cumulative third quarter were ¥127 million. There were no material changes in the status of research and development activities.」

「We began work toward securing a new earnings base, including filing patent applications for new construction methods.」

「During the current consolidated fiscal year, we obtained a patent for a new construction method based on our construction technology.」

「Research and development expenses for the consolidated cumulative third quarter were ¥7 million. There were no material changes in the status of research and development activities.」

「Research and development expenses for the consolidated cumulative second quarter were ¥4 million. There were no material changes in the status of research and development activities.」

「Using the “ultrasonic phased-array flaw detection system capable of inspecting temperatures of up to 150°C,” we conducted simulated verification and collected data at our factory through the previous fiscal year, establishing the method. During the current fiscal year, we confirmed the validity of the method in actual welding work targeted by the method.」

「Research and development expenses for the consolidated cumulative third quarter were ¥9 million. There were no material changes in the status of research and development activities.」

「Total research and development expenses for the second quarter of the current consolidated cumulative period were ¥5 million. There were no significant changes in the status of research and development activities.」

「Total research and development expenses for the first quarter of the current consolidated cumulative period were ¥6 million. There were no significant changes in the status of research and development activities.」

「During the current fiscal year, we obtained 3 patents for “a method and apparatus for extracting shrink-fitted components” related to this development.」

「Total research and development expenses for the second quarter of the current consolidated cumulative period were ¥59 million. There were no significant changes in the status of research and development activities.」

「Total research and development expenses for the first quarter of the current consolidated cumulative period were ¥32 million. There were no significant changes in the status of research and development activities.」

「During the current fiscal year, we introduced an ultrasonic phased-array flaw detector and completed research into high-temperature applications for the sound-absorbing materials used in detectors (probes and wedges), bringing them into practical use. Going forward, we will conduct repeated demonstration tests to establish flaw-detection procedures and contribute to improved welding quality.」

「At the same time, we are promoting technology development in response to customer needs, reviewing our personnel systems, and developing personnel to lead the next generation,」

「At the same time, we are promoting technology development in response to customer needs, reviewing our personnel systems, and developing personnel to lead the next generation,」

「The Group's research and development primarily consists of developing and improving machinery, tools, and other equipment to increase construction efficiency and safety, and researching and acquiring technologies in new fields to expand the scope of orders it can undertake.」