Power Transmission Division
The Power Transmission Department, since its establishment in 1971, has been engaged in the construction of transmission line towers to supply electricity, which is essential to our daily lives. We are committed to supplying electricity safely to our customers and helping them live with peace of mind by quickly responding to natural disasters such as earthquakes and typhoons and restoring power outages. We also place great importance on the safety of our staff, and each member of our team continually strives to further improve their skills.
Telecommunications Division
The Telecommunications Department has been engaged in the installation, design, construction, and maintenance of cellular radio base stations in the Kanto and Tohoku regions. We conduct our daily operations by drawing on our extensive knowledge and the technologies we have developed over the years. We respond promptly to requests ranging from small-scale installations, annexations, and expansions to large-scale new projects, as well as indoor installations in subways and large buildings. As new technological innovations emerge, we will continue to make dedicated efforts and refine our expertise as professionals in the field of telecommunications engineering.
Wireless Base Station Construction
We provide one-stop services for cell phone base station installation from negotiation to construction management, regardless of the size of the project.
We are flexible and work with expertize.
Land stations (towers)Construction of steel towers and installation / replacement of attached radio equipment and antennas
Building StationsInstallation and replacement of new radios and antennas on building rooftops and indoor commercial facilities
Land station (concrete pillar)Construction of concrete pillars and installation / replacement of attached radios and antennas
Maintenance and inspection of wireless base stations
We provide inspection and maintenance services for cellular radio base stations at the request of businesses. In addition to normal inspections and maintenance, we also provide infrastructure maintenance for quick and early restoration in the event of a disaster, based on our experience from the Great East Japan Earthquake.
MaintenanceMaintenance of existing stations
Periodic InspectionPeriodic inspections of installed stations are performed throughout the year.
Environment Division
Our company is engaged in the construction and maintenance of meteorological observation towers for wind power plants, operating across Japan from Hokkaido to Kyushu.
As Japan strives to achieve carbon neutrality by 2050, and wind power adoption is expected to expand further, the specialized and advanced technologies required for constructing observation towers over 60 meters in high are becoming increasingly important.
In 2025, our team will complete the Basic Safety Training (BST) established by the Global Wind Organisation (GWO).
We will continue to refine ourselves as experts supporting the energy industry that leads to a sustainable future, striving not only to enhance our technological capabilities but also to improve safety standards.
List of Certified Personnel
※（Number of Foreign Employees among Certificate Holders）
| Training for Foremen and Safety and Health Managers | 26 |
|---|---|
| technical supervisor | 2 |
| 1st Class Electrical Work Enginee | 6（1） |
| 2nd Class Electrical Work Engineer | 11 |
| 1st Class civil engineering works execution managing engineer | 2 |
| 1st Class electrical construction management engineer | 1 |
| 1nd Class Telecommunications Construction Management Engineer | 1 |
| 2nd Class Telecommunications Construction Management Engineer | 1 |
| Explosives Handling and Safety Engineer | 1 |
| Skill training course for operations chief of erection, etc., of steel frame of buildings, etc. | 22 |
| 1st Class Land Special Radio Engineer | 11 |
| 1st Class Health Manager | 1 |
| Skill training course for operations chief of excavating natural ground | 12 |
| Skill training course for operations chief of shoring | 11 |
| Skill training course for operations chief of assembling, etc., of scaffolding | 17 |
| Special training course for operations chief of assembling, etc., of scaffolding | 25 |
| Skill Training Course for Work Supervisors in Oxygen Deficiency and Hydrogen Sulfide Hazard Operations | 10 |
| Special Education for Work Involving Oxygen Deficiency Hazards | 3 |
| Special Education for Work Involving Oxygen Deficiency and Hydrogen Sulfide Hazards | 9 |
| Skill Training Course for Handling Powder Material Work Supervisors | 1 |
| Skill training course for operations chief of gas welding | 2 |
| Skill training course for light capacity mobile crane operation | 16 |
| Special training for derrick operation | 24 |
| Special training for crane and mobile crane operation | 2 |
| Special training for operators of mobile cranes under 5t | 6 |
| Safety training for crane assembly and disassembly operation supervisors (related to climbing cranes) | 8 |
| Special training for tower elevators | 3 |
| Special training for high voltage and special high voltage electricity handling operations | 22 |
| Special training for low voltage electricity handlers | 23 |
| Skill training course for operation of vehicle-type construction machines (for leveling ground) | 9 |
| Skill training course for operation of vehicle-type construction machines (demolition) | 6 |
| Skill training course for operation of transporting vehicle on rough terrain | 6 |
| Special training course for operation of transporting vehicle on rough terrain | 13 |
| Skill training course for operation of vehicle for work at height | 12 |
| Skill training course for forklift operation | 2 |
| Special training for hoisting equipment | 25 |
| Skill training course for sling work | 31 |
| Special training for arc welding operations | 6 |
| Special training for grinding and test operation of grinding wheels | 21 |
| Special training for full harness fall arrest equipment | 30 |
| Skill Training Course for Specific Chemical Substances and Tetraalkyl Lead Work Supervisors | 5 |
| Skill Training Course for Asbestos Work Supervisors | 4 |
| 1st Class construction accountant | 1 |
| 2st Class construction accountant | 2 |
| Skill training course for operations chief of lining of tunnel, etc. | 2 |
| Special training for logging (large diameter trees, etc.) | 5 |
| Safety and health training for brushcutter operators | 18 |
| Special on-site training on the use and handling of key-lock safety ropes | 19 |
| Hot-dip galvanized high torque bolt joint installation technician | 8 |
| Personnel engaged in patrol and inspection work | 2 |
| Heavy machinery safety inspector | 1 |
| Engineer specializing in portable power generation equipment | 2 |
| Power transmission line construction work team leader (foundation, assembly, overhead wire) | 18 |
| Decontamination Worker | 17 |
| Regular overhead power transmission line patrol contractor | 4 |
| Machinery and tools for overhead transmission line | 2 |
| Engineer for private power generation equipment | 1 |
| Occupational Health Education for Heat Stroke Prevention Managers | 8 |
| Specialist in portable power generation equipment | 1 |
| Lifesaving training | 4 |
| 500㎸275㎸Faulty insulator detection and other work | 1 |
| Protector Pass-through type overhead transmission line Overhead line machine tools for overhead lines (R5A23T-K) | 1 |
| Mt, liner operator training (900,1500 series) | 1 |
| Mt, liner operator training (700 series) | 2 |
| Tower lift operators Tower lift operators in charge of start-up inspection | 2 |
| Skill training course for gas welding | 1 |
| Heavy equipment safety inspectors | 2 |
| Gondola special training | 3 |
| Fiber optic fiber connection skills training | 1 |
| Unmanned Aerial Vehicle Operation Skills | 1 |
| Team leader supervisor training | 1 |
| Post-construction anchor training | 1 |
| Kanto Tohoku Industrial Safety Supervision Department (Certified Electrician) | 1 |
| Global Wind Organisation Basic Safety Training (GWO BST, 4 Modules) – Completed | 6 |
| Japanese-Language Proficiency Test（JLPT）N1 | 2（2） |
| Japanese-Language Proficiency Test（JLPT）N2 | 1（1） |