Announcement of the establishment of the Audio Business Division

We will measure and evaluate how loud the standard floor impact is heard in the room below.

Using lightweight and heavyweight impact sound sources (tapping machine and banging machine), the floor being measured is excited to generate impact sound, and the lightweight equivalent sound pressure level and heavyweight maximum sound pressure level are measured directly below. The floor impact sound level is then determined. From these results, the L value is calculated and evaluated.

• Contract measurement

We measure and evaluate how much sound is blocked by the building's partition walls and floors.

Generate pink noise in the sound source room, measure the sound pressure levels on the source side and the receiving side, and calculate the inter-room sound pressure level difference. From the results, calculate and evaluate the D value.

• Contract measurement

We will design the necessary sash grades for the indoor target values.

It predicts the noise level exposed on the window surface based on frequency data of the sound source, position, size, and occurrence frequency, and calculates the necessary sound insulation required to meet the target value indoors.

• Contract measurement

It is possible to easily conduct sound insulation performance tests of building materials at a low cost.

"I want to know the sound insulation performance of building materials under development," "I can't spend too much on costs," "I want to know the results as soon as possible." If you have such needs, please consult us. Our acoustic laboratory can easily conduct sound insulation performance tests for building materials. (The data is not official. Please use it as reference data only.)

• Contract measurement

We measure and evaluate the indoor quietness in buildings.

We measure the road noise that penetrates from outside, as well as the noise generated during the operation of elevators and mechanical parking systems indoors, and evaluate the indoor quietness based on the analysis results (such as NC curves).

• Contract measurement

Experts in "sound" provide total support from measurement to countermeasures. Leave the noise control construction for factories to us.

In factories and similar settings, the issue of "sound" has become inseparable. At Environmental Research, we provide comprehensive support from noise control measures for equipment to the design and construction of soundproof walls, solving sound-related problems.

• Contract measurement

We will measure the reverberation time of the music room, gymnasium, conference room, and so on.

Sound sources are generated from the speakers, and data is recorded from microphones installed in several locations within the room. From the analysis results, the reverberation time of the room is calculated.

• Contract measurement

The Hyper CLT flooring is not only used on-site but also aims for further performance improvements through industry-academia collaboration with universities. To utilize wood in outdoor civil engineering sites, it is important to verify various challenges such as durability and water resistance. Therefore, Kaitaku Co., Ltd. continues research and development in collaboration with various universities. The goal is to connect research results to actual product improvements and new applications, evolving into more user-friendly and high-value wooden flooring. The Hyper CLT flooring is registered with the Ministry of Land, Infrastructure, Transport and Tourism under the NETIS technology "TH-250021-A." In addition to this NETIS registration achievement, research and development through industry-academia collaboration is ongoing. By combining the technologies of wood, NETIS, civil engineering, and universities, the Hyper CLT flooring further expands the possibilities of new civil engineering CLT.

In public works, not only construction quality but also safety measures, environmental considerations, and unique site-specific innovations are important. One proposal that is easy to suggest is the civil engineering CLT "Hyper CLT Mats" utilizing wood. These can be used for temporary roads, access routes, worker pathways, and material yards, improving the site environment from a different perspective than steel plates. It is also characterized by the ease of explaining the purpose of implementation to clients, such as measures against summer heat reflection, noise reduction, CO2 fixation, and consideration for the landscape. Furthermore, being a **NETIS registered technology "TH-250021-A"** by the Ministry of Land, Infrastructure, Transport and Tourism is a significant point when proposing in public works. It can be considered as one of the new technology applications and creative innovations. Clearly communicating "why this material is used" is also important when making proposals to government offices. The Hyper CLT Mats, which combine wood, NETIS, and civil engineering, are expanding their use in public works as a new civil engineering material that balances practicality and environmental consideration.

Metal cracks are one of the concerns in equipment maintenance operations. Conventional welding methods for repairs often change the base material around the crack due to heat, leading to residual stress and deformation, which constantly carries the risk of "crack recurrence" and "secondary damage." Hinode Waterworks Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material at all. Repairs can be made even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.

Metal cracks are one of the concerns in equipment maintenance operations. Conventional welding methods for repairs can cause changes in the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" and "secondary damage." Hinode Water Supply Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material at all. Repairs can be made even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.

Metal cracks are one of the concerns in equipment maintenance operations. Repairs using conventional welding methods often change the base material around the crack due to heat, leading to residual stress and deformation, which constantly carries the risk of "crack recurrence" and "secondary damage." Hinode Waterworks Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material at all. Repairs can be carried out even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.