Side Ditch Comprehensive Catalog Additional Publication

Achieving economy, strength, and durability, the two-row drainage channel and slit holes capture rainwater!

The "Win Side Ditch" is a new free-gradient side ditch that combines economic efficiency with strength and durability as a product. It features two rows (double) of drainage channels and slit holes arranged in the main beam and cover, effectively capturing rainwater. Thanks to its super drainage capacity, a collection grating is unnecessary. The slit holes are flared, making them less prone to clogging. 【Features】 ■ Two rows of drainage channels and slit holes effectively capture rainwater ■ Suppresses road surface subsidence ・ The side walls have a flat shape without irregularities ■ Lightweight cover significantly reduces construction costs ・ Excellent drainage function minimizes the need for grating ■ Prevents water accumulation on roads and rainwater runoff to residential areas *The sales area is limited to the Kinki region (2 prefectures and 4 counties) and the Kanto region. For more details, please contact us or download the catalog.

• Gutters and U-shaped gutters
• Dam construction

Commercializing optimal drainage structures based on experimental data from industry, government, and academia. A circular waterway that maximizes the functionality of drainage pavement.

This is a circular drainage channel that demonstrates the drainage function of permeable pavement. It features a design structure with optimal drainage capabilities based on rainfall experiments. The inlet structure pursues the thinning of the permeable pavement layer at the collection area of the circular drainage channel. The circular drainage channels are strongly connected to each other with bolts. It is a design structure that comes as a set with the circular drainage channel and a dedicated catch basin. For more details, please download the catalog or contact us.

• Secondary paving products

Based on the consensus of member companies nationwide, the waterway developed by the association, incorporating the know-how accumulated over the past 30 years, has become the "Unified Circular Waterway."

【Rich Variations】 ○ Type I → This is the most standard circular drainage channel with a 500mm wide apron. ○ Type II → A circular drainage channel with an upper slit designed for automobile-exclusive roads. ○ Type III → Designed for general roads. Comes with a dedicated grating. ○ Type IV → Designed for general roads. A boundary block is installed at the top of the main body. ○ Type V → Used for the crossing sections of general roads. ○ Urban Type → Used in areas where aesthetics are prioritized, featuring L-shaped angles and grating. For more details, please download the catalog or contact us.

• Drainage and water removal
• Earthworks
• Paving of sidewalks, roads, parking lots and stadiums

It has a double safety structure to prevent the lid from popping up and scattering.

The FD drain, which serves as a curb and drainage channel for bridges, features a double safety structure that prevents the cover from bouncing up and scattering. The underlying SG (melted zinc-aluminum alloy) coating has several times the corrosion resistance of standard hot-dip galvanized coatings, providing excellent rust prevention. Additionally, it has superior adhesion to various types of paint, ensuring that there is no concern about peeling over time. The nylon 12 coating maintains an average thickness of over 300μm, effectively blocking moisture from the iron substrate and underlying coating, thus achieving a long lifespan. Its excellent wear resistance means that even in harsh environments like road shoulders, it is less likely to chip or peel. For more details, please contact us or refer to the catalog.

• Drainage and ventilation equipment
• Gutters and U-shaped gutters

We will introduce examples of smart drains installed in roads, sidewalks, parking lots, and parks.

The steel side ditch for shoulder drainage, Smart Drain, ensures safety and allows for road width expansion. It also excels in water flow capacity and features a compact and space-saving design. Smart Drain is available in three types: S-type, E-type, and C-type, which can be selected according to the shape of the road. It can eliminate puddles on sidewalks and shoulders, allowing for manual installation with minimal excavation. This significantly shortens construction time and minimizes the impact on the surrounding area. For more details, please contact us or refer to the catalog.

• Gutters and U-shaped gutters
• Dam construction

Simple structure and high durability. Steel side ditches with a reduced cross-section design.

It is lightweight and does not require heavy machinery for installation. Its smart design does not compromise the landscape. It is also compatible with permeable pavement. The C-type, designed to be light enough to be held with one hand, comes in a wide range of sizes from 50□ to 200□. The S-type, which allows for adjustable angle heights, ranges from 50mm to 110mm depending on conditions. The slit width can also be selected as either 15mm or 9mm based on collection conditions. For more details, please download the catalog or contact us.

• Gutters and U-shaped gutters
• Dam construction

There are no gradient breaks, and the safety of the road shoulder is improved! The water flow capacity is about twice that of the conventional L-shaped drainage channel.

The "Smart Drain E-100 Type" is a steel side ditch that maintains a constant slope, ensuring safety. By having a consistent cross slope, the need for a street apron is eliminated, allowing for a 40 cm increase in the width of the roadway and sidewalk. Additionally, despite its lightweight and compact structure, its water flow capacity is approximately twice that of conventional L-shaped street ditches. 【Features】 ■ Improved safety ■ Increased road width ■ Approximately double the water flow capacity ■ Lightweight and strong compact design ■ Cost-effective *For more details, please refer to the PDF or feel free to contact us.

• Drainage and ventilation equipment
• Gutters and U-shaped gutters

12% cost reduction compared to conventional methods! Achieving a large-capacity and reliable wide collection slit!

"Good Rain" achieves significant cost reduction and high-performance slit drainage by adopting a 'comb-like interlocking structure' between the curb integrated lid and the U-shaped water channel. It allows for safe shoulder driving, making it ideal for bicycle-only roads. We can also accommodate region-specific specifications. 【Features】 - Can be addressed by replacing only the upper curb lid components - Smooth construction - Abundant variations - Achieves low cost This product is limited to the Kinki region (2 prefectures and 4 counties). Thank you for your understanding. For more details, please download the catalog or contact us.

• Gutters and U-shaped gutters
• Secondary paving products

Measures against guerrilla rainstorms, enhancing road surface drainage functions. Minimally invasive and non-destructive small cross-section ditches "Smart Drain."

The steel side ditch "Smart Drain" is lightweight, can be installed without heavy machinery, and allows for shortened construction periods and cost reductions. Compared to traditional concrete road ditches, it can be installed in a space-saving manner. The exposed surface of the top plate is minimal, making the ditch less noticeable and preserving the landscape. With a wall thickness of 4.5mm, it is designed to withstand harsh conditions (T-25 rating) and is adopted in various scenarios. It can be easily introduced in areas where puddles quickly form during sudden heavy rain! 【Benefits of Introduction】 ○ Shortened construction period and reduced installation costs ○ Improved drainage function of the road surface ○ Lightweight and compact ○ Significant reduction in cross-section compared to traditional ditches For more details, please download the catalog or contact us.

• Gutters and U-shaped gutters
• Dam construction

A slit-type full collection structure suitable for barrier-free drainage treatment. We offer a rich lineup. We have 20 years of experience and achievements.

【Main Body Lineup】 ○ Drainage pavement dedicated longitudinal type E and EL → This type is specially designed for drainage pavement developed based on experimental data from industry, government, and academia. ○ Longitudinal type K and KL → The structure integrates boundary blocks with bolts, achieving a reduced cross-section for street gutters. ○ Access type B ○ Barrier-free compatible type AF ○ Longitudinal type A ○ Cross-sectional type CD ○ Urban type M For more details, please download the catalog or contact us.

• Gutters and U-shaped gutters
• Dam construction

The "HA-T Series" is an energy-saving automatic door sensor that opens only for those who want to enter, whether on a busy street or in a narrow passageway. The automatic door opens simply by bringing your hand close, addressing hygiene concerns even in facilities used by a large number of people. Depending on the application and installation location, you can choose between "Non-vision Mount Type/HA-T401" and "Non-vision Built-in Type/HA-T520." 【Recommended for such places!】 ☑ Entrance facing a busy passageway ☑ Presence of counters or signs near the door ☑ Buildings facing narrow passageways ☑ Buildings that prioritize aesthetics ☑ Hospitals and facilities that consider hygiene ☑ Large facilities with many doors 【Features】 ● Adaptable to various door types with four detection spot settings ● Reduces unnecessary opening and closing to minimize power consumption, contributing to energy-saving effects ● Equipped with a light touch function, allowing the door to open and close simply by waving your hand, ensuring hygiene ● Can also be used as a wide detection range non-vision infrared sensor ◎ For more details, please download the materials or contact us.

Our seminar, “Back-Office DX in the Era of Digital Salary Payments,” was featured on HAB News Squash (Hokuriku Asahi Broadcasting) This seminar was co-hosted by Kort Valuta Inc. and Schult Social Insurance & Labor Consultant Office, and was held on January 19, 2026, for companies based in Ishikawa Prefecture https://www.hab.co.jp/news/article/202601217724.php As cashless payments continue to expand, digital salary payments are gaining attention across Japan. The coverage highlights current challenges faced by regional SMEs, including limited information and know-how, as well as key considerations and benefits for implementation. ▶️The seminar video featured in the news is now available on YouTube https://www.youtube.com/watch?v=GlHcFSTrFHM

Starting from January 2026, we are pleased to announce that by linking the measurement data collected on the "Fieldroid Cloud" with the BIM/CIM cloud "KOLC+" provided by Cork Inc., it has become possible to centrally display measurement data summaries on the digital twin. (Examples) Measurement of various environmental data using Cloud Logger LTE Forecasting wind speed, rainfall, and heat index using Signroid 2 Temperature and humidity measurement during concrete curing using Ondroid Slope monitoring using Guraloid Displacement measurement using the shape displacement measurement system "G-Gauge" The data measured by the above services is sent to the cloud, enabling graph displays and alert email notifications. With the implementation of the data linkage function, it is now possible to visualize the latest measurement data from the Fieldroid Cloud on the digital twin constructed in "KOLC+". For more details, please check the content on the linked page.

Regarding the "quotation" used at the forefront of sales activities: "Do we need to save everything when we revise it to Ver.1, Ver.2, etc., every time the amount or specifications change?" "Should we also keep the data from other companies that were not selected in competitive quotations?" Have you ever wondered about these questions? The Electronic Bookkeeping Act strictly demands the "authenticity" of data, but saving all processes is a significant burden for the field. This time, we will clearly explain the boundaries of the preservation obligation in a case study format, incorporating interpretations from the latest National Tax Agency Q&A. *You can read the full text from the note in the "Related Links." [Contents of this article] 1. The boundary of the preservation obligation lies in "sending to external parties." Items sent externally are "generally required to be preserved." Items that have not been sent externally have "no preservation obligation." 2. Judgment from the sending side: "Is it linked to a transaction?" 3. Judgment from the receiving side: "The perspective of the 'Corporate Tax Act' is important." ■ Note! "Version revisions" and "corrections/deletions" are different things. ■ A smart way to ensure reliable "version management." ■ Summary.

We plan to exhibit at the Disaster Prevention Industry Exhibition 2026, which will be held at Tokyo Big Sight in the last week of January. We will showcase products such as the "Electric Stair Climbing Human Cart," an electric stair climbing device that allows people to ascend and descend stairs while seated in a wheelchair. Please be sure to visit our booth. ------------------------------- Our booth number: 7B-38 ------------------------------- 【Dates】January 28 (Wednesday) to January 30 (Friday), 2026, 10:00 AM to 5:00 PM 【Venue】Tokyo Big Sight, East Hall 【Admission Fee】Free for registered attendees, those with invitations, and junior high school students and younger. *For others, an admission fee of 1,000 yen will be charged.