吉光組 List of Products and Services

The "TNF Method" is a low-cost special foundation construction method that integrates the slab and building foundation with improved ground using solidifying materials, supporting the building across the entire improved ground surface without the use of piles. By dispersing soil stress in multiple directions, it suppresses one-directional extrusion of the soil. It allows for construction while protecting historical heritage and other underground assets. Additionally, it significantly reduces the use of materials such as rebar, concrete, and formwork. 【Features】 ■ Suppresses differential settlement ■ No uplift steps that occur in pile-supported buildings ■ The improved ground shields against surface outflow of soil and mitigates liquefaction directly beneath the building ■ Minimal impact on underground natural environments such as groundwater ■ Protects underground buried objects ■ Reduces CO2 emissions *For more details, please refer to the PDF materials or feel free to contact us.

The "TNF-D method" disperses the stress under the foundation by shaping the foundation into a trapezoidal form. It reduces stress on the underlying ground and supports the foundation with a strong TNF improved ground. By minimizing the foundation volume, it can reduce the amount of concrete, excavation, and rebar used. Additionally, it contributes to reducing environmental impact through labor-saving construction. 【Features】 ■ Reduction of foundation structure costs ■ Shortening of foundation structure construction time ■ Resolution of labor shortages ■ Reduction of environmental impact *For more details, please refer to the PDF materials or feel free to contact us.

The "T-BAGS Seismic Isolation Method" involves laying two layers of T-BAGS, sandwiched with a special sheet, beneath the floor slab and under the foundation. During an earthquake, the sliding of the T-BAGS absorbs the building's vibrations. Due to its extremely high durability, regular maintenance is not required. Additionally, by combining it with the TNF method, it is possible to construct on soft ground and reduce installation costs. 【Features】 ■ Two layers of T-BAGS sandwiched with a special sheet laid beneath the floor slab and under the foundation ■ Applicable to soft ground ■ Low cost ■ Maintenance-free ■ Vibration reduction: from 300gal–800gal to below 200gal–250gal *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce our "TNF Hybrid Method." After ground improvement using the "TNF Method," we install log piles from the improved layer. This compacts the loose sandy ground that causes liquefaction, improves the ground, and provides stable support for buildings. Additionally, the use of log piles (wood) contributes to carbon storage, helping to reduce CO2 emissions. 【Features】 ■ Low-cost liquefaction countermeasures ■ CO2 emission reduction ■ Compacts loose sandy ground and improves the foundation ■ Provides stable support for buildings *For more details, please refer to the PDF document or feel free to contact us.

The "TNF+ (Plus) Method" enhances the "TNF Method (a shallow improvement method with a grid-like structure)" by applying columnar improvements to the bottom layer, making the ground even more solid and protecting buildings from weak ground. The improved layer can be formed into various shapes, allowing for the free installation of underground structures. At the time of land return, a pipe water jet is injected into the installed pipes, instantly crushing the improved body using water pressure. 【Features】 ■ The columnar improvement section encloses the soil in the lower part of the improved layer, achieving a solid ground. ■ A new method applicable to mid-rise and high-rise buildings. ■ The improved layer can be formed into various shapes, allowing for the free installation of underground structures. ■ By installing pipes in the columnar section, geothermal utilization such as heat pumps is possible. ■ High-pressure water is injected from the pipes installed in the columnar section to crush the improved body. ■ The improved body can be dismantled in a short period, reducing the cost of restoring the land to its original state. *For more details, please refer to the PDF materials or feel free to contact us.

The "WT Method" is a construction technique that improves underground areas such as parking lots using the TNF method to create a reservoir consisting of walls on four sides and a bottom slab. By forming the contact surface between the bottom slab and the underlying ground in a grid pattern, it maintains the stability of the structure even on soft ground. Additionally, since the improved ground serves as a container, construction work such as rebar and concrete is almost unnecessary. It allows for construction in a shorter period compared to conventional storage facilities. 【Features】 ■ Easy to construct even on soft ground or ground with a high water table ■ Almost no need for construction work such as rebar and concrete since the improved ground acts as a container ■ Allows for construction in a shorter period compared to conventional storage facilities ■ Can be freely shaped, enabling the installation of oil tanks and piping systems *For more details, please refer to the PDF materials or feel free to contact us.

We introduce a suitable construction method for the burial of tanks and piping at gas stations. By applying the "WT method," we form a container that houses buried facilities such as tanks in improved ground. By combining it with the "TNF method," we integrate the ground behavior of gas stations on soft ground, protecting buried facilities from earthquakes and ground subsidence. Additionally, it eliminates the need for sheet piles and supports, achieving a reduction in construction time and costs. 【Features】 ■ Suitable for soft ground - No uplift due to the absence of piles, preventing damage to piping - Applying the TNF method under buildings and in external areas prevents damage to underground facilities ■ Achieves low cost and reduced construction time - Eliminates the need for sheet piles and supports, resulting in reduced construction time and costs *For more details, please refer to the PDF materials or feel free to contact us.

The "Self-Propelled Soil Improvement Machine Litera" is a mobile recycling plant manufactured and sold by Komatsu Ltd. Being self-propelled, it recycles soil discharged from construction sites on-site using cement and lime. Due to the high volume of work, the quality is consistently good, leading to cost reductions. Please feel free to contact us when you need assistance. 【Features】 ■ Compared to conventional methods (backhoe mixing), it has a higher workload and consistently good quality. ■ It results in cost reductions compared to disposing of soil. ■ It contributes to CO2 reduction and carbon neutrality by eliminating deforestation caused by soil disposal. ■ It is suitable for "contaminated soil remediation projects" that require high quality. *For more details, please refer to the related links or feel free to contact us.

We would like to introduce the features of the mobile recycling plant "Self-Propelled Soil Improvement Machine Litera," manufactured and sold by Komatsu Manufacturing Co., Ltd. Since it is self-propelled, it recycles soil discharged from construction sites on-site using cement and lime. Compared to conventional methods (backhoe mixing), it has a higher workload and consistently delivers better quality. Please feel free to contact us when you need assistance. 【Features】 ■ Cost reduction compared to disposing of soil ■ Contributes to CO2 reduction and carbon neutrality by eliminating deforestation caused by soil disposal ■ Suitable for "contaminated soil remediation projects" that require high quality *For more details, please refer to the related links or feel free to contact us.

We would like to introduce the features of the mobile recycling plant "Self-Propelled Soil Improvement Machine Litera," manufactured and sold by Komatsu Manufacturing Co., Ltd. Since it is self-propelled, it recycles soil discharged from construction sites on-site using cement and lime. This results in cost savings compared to disposing of the soil. Please feel free to contact us when you need assistance. 【Features】 ■ Compared to conventional methods (backhoe mixing), it has a higher workload and consistently better quality. ■ It contributes to CO2 reduction and carbon neutrality by eliminating deforestation caused by soil disposal. ■ It is suitable for "contaminated soil remediation projects" that require high quality. *For more details, please refer to the related links or feel free to contact us.

We would like to introduce the features of the mobile recycling plant "Self-Propelled Soil Improvement Machine Litera," manufactured and sold by Komatsu Manufacturing Co., Ltd. By eliminating deforestation caused by soil disposal, it contributes to CO2 reduction and carbon neutrality. Being self-propelled, it recycles soil discharged from construction sites on-site using cement and lime. Please feel free to contact us when you need assistance. 【Features】 ■ Compared to conventional methods (backhoe mixing), it has a higher workload and consistently good quality. ■ It results in cost reduction compared to disposing of soil. ■ It is suitable for "contaminated soil remediation projects" that require high quality. *For more details, please refer to the related links or feel free to contact us.

The "Self-Propelled Soil Improvement Machine Litera" is a mobile recycling plant manufactured and sold by Komatsu Ltd. It is suitable for "contaminated soil remediation projects," which require high quality, and being self-propelled, it recycles soil discharged from the construction site on-site using cement or lime. Please feel free to contact us when needed. 【Features】 ■ Compared to conventional methods (backhoe mixing), it has a higher workload and consistently good quality. ■ It reduces costs compared to disposing of soil. ■ It contributes to CO2 reduction and carbon neutrality as there is no deforestation due to soil disposal. *For more details, please refer to the related links or feel free to contact us.

At Yoshimitsu Corporation, we carry out ground improvement work to create artificial bedrock in soft ground across the country, tailored to the specific buildings. Compared to pile foundations, we achieve approximately 30% cost reduction. Since pile work, formwork work, and ground preparation work are not required, the construction period is shortened by 50%. Please feel free to contact us when you need our services. 【Features】 ■ Approximately 30% cost reduction compared to conventional methods (pile foundations) (for a floor area of 1000 m² and pile length of 30 m) ■ Construction period shortened by 50% compared to conventional methods, as pile work, formwork work, and ground preparation work are not required (for a floor area of 1000 m² and pile length of 30 m) ■ No piles used, resulting in reduced demolition costs when dismantling the building *For more details, please refer to the related links or feel free to contact us.

We would like to introduce the features of the "TNF Method," implemented by Yoshimitsu Corporation, which has over 1,300 achievements nationwide. In soft ground across the country, we perform ground improvement to create an artificial bedrock suitable for the building. Compared to conventional methods (pile foundations), we can achieve approximately 30% cost reduction (for a total floor area of 1,000 m² and pile length of 30 m). Please feel free to contact us when you need our services. 【Features】 - Compared to conventional methods, there is no need for pile work, formwork work, or ground preparation work, resulting in a 50% reduction in construction time (for a total floor area of 1,000 m² and pile length of 30 m). - Since no piles are used, the demolition costs during building dismantling are also reduced. *For more details, please refer to the related links or feel free to contact us.

We would like to introduce the features of the "TNF Method," implemented by Yoshimitsu Corporation, which has over 1,300 successful projects nationwide. We carry out ground improvement to create an artificial bedrock suitable for buildings on soft ground across the country. Compared to conventional methods, there is no need for pile work, formwork, or foundation work, allowing for a 50% reduction in construction time (for a total floor area of 1,000 m² and pile length of 30 m). Please feel free to contact us when you need our services. 【Features】 ■ Approximately 30% cost reduction compared to conventional methods (pile foundation) (for a total floor area of 1,000 m² and pile length of 30 m) ■ No piles are used, which also reduces demolition costs when dismantling buildings *For more details, please refer to the related links or feel free to contact us.

We would like to introduce the features of the "TNF Method," implemented by Yoshimitsu Corporation, which has over 1,300 achievements nationwide. We carry out ground improvement to create an artificial bedrock suitable for buildings on weak ground across the country. Since we do not use piles, the demolition costs during building dismantling are also reduced. Please feel free to contact us when needed. 【Features】 ■ Approximately 30% cost reduction compared to conventional methods (pile foundation) (for a total floor area of 1,000 m² and pile length of 30 m) ■ Construction period shortened by 50% compared to conventional methods, as pile work, formwork work, and ground preparation work are not required (for a total floor area of 1,000 m² and pile length of 30 m) *For more details, please refer to the related links or feel free to contact us.

This document is a record of construction achievements by Yoshimitsu Corporation. It includes various items such as "Date," "Client," "Volume of Soil Improvement," and "Solidifying Agent." Our company started in 1924 (Taisho 13) with gravel extraction from the Tedori River. Since then, we have begun civil engineering projects such as road improvement works, and from the 1990s, we have expanded our business into soil improvement, construction, and housing projects. We invite you to read it. 【Included Items (Partial)】 ■ Date ■ Client ■ Project Name ■ Project Location ■ Contractor *For more details, please refer to the PDF document or feel free to contact us.

This document is a shipping list for "Metal Shut and Oil Shut" handled by our company. We introduce items such as "Shipping Date," "Product Name," and "Target Substance." Our company started in 1924 (the 13th year of the Taisho era) with gravel extraction from the Tedori River. Since then, we have expanded into civil engineering projects such as road improvement works, and from the 1990s, we have broadened our business to include soil improvement, construction, and housing projects. Please take a moment to read through it. 【Listed Items】 ■ Shipping Date ■ Client ■ Product Name ■ Target Substance ■ Construction Location ■ Shipping Quantity *For more details, please refer to the PDF document or feel free to contact us.