Product Categories
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Wi-Fi environment improvement measures, wireless LAN environment measures, Wi-Fi environment measures.
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RFID environmental measures, RFID shielding, electronic tag radio wave environmental measures
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RFID electronic tag shielding measures to resolve interference misreads adopted by apparel and specialty stores.
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Electromagnetic wave shielding, electromagnetic wave shielding construction
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Case studies and technical documentation on the introduction and utilization of electromagnetic wave shielding materials.
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Electromagnetic wave shielding fabric, electromagnetic wave shielding curtains, high-frequency wave absorption sheets.
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Radio wave absorber / transparent radio wave absorber, thin radio wave absorber, flat radio wave absorber
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Magnetic (magnetic field) environment measurement, electromagnetic wave (radio wave) environment measurement, on-site measurement.
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Magnetic shield, nano-crystalline alloy sheet, magnetic shielding sheet.
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Electromagnetic Wave Chamber: You can freely conduct EMC measurements using our company's site.
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Shield room / electromagnetic wave shield tent / electromagnetic shield door
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Conductive shield gasket, conductive caulking, shield caulking.
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Noise Suppression Sheet / NFC/RFID Countermeasure Sheet / Comprehensive Countermeasure Product Catalog
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Antiviral, antibacterial, and flame-retardant processed transparent roll screens and curtains.
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Environmentally friendly high-performance vibration control material "Neofade"
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Microbial testing device "Bioproller" "Filtration chip" "Reagents"
Featured products
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Electromagnetic wave shielding film, shielding film, radio wave shielding film
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Aluminum heat-insulating sheet, non-combustible aluminum heat-insulating sheet, aluminum non-combustible heat-insulating sheet.
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Electromagnetic wave shielding construction, radio wave shielding construction, magnetic shielding construction.
Products/Services(37items)
news list
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[Acquired SIAA dual certification mark for antibacterial and antiviral incorporation] Effectiveness lasts with just a water wipe on the surface! Implement long-term measures against the novel coronavirus with 'KOYO Air Pass Roll Screen & Air Pass Curtain'! Be sure to check for the 'flame retardant mark'!
Guidelines for business continuity have suggested infection prevention measures for restaurants, such as partitioning customer seating and installing barriers between cash registers and customers in retail stores. Antibacterial vinyl curtains have been available for a long time, but for virus protection, "antiviral" properties are necessary. Additionally, acrylic panels placed on floors and tables can obstruct ventilation, so measures using vinyl sheets are recommended. For infection control in residences, care homes, nursing, and welfare facilities, installing roll screens at entrances, hallways, halls, and living rooms allows for ventilation when in use and one-touch raising when passing through. We also provide hanging curtain types for reception areas and bedside in medical institutions. The flame-retardant transparent vinyl does not create a sense of pressure, blocks droplets at close range, significantly reduces infection risk, and allows for face-to-face communication. The fire from a stove can reach vinyl curtains or disinfectants... News of wooden two-story stores being completely burned down has been frequent, and there have been many fires in restaurants and homes since last year. Many may have installed non-flame-retardant vinyl sheets, but from a fire safety perspective, there is a growing possibility of receiving warnings from the fire department in the future.
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A "high-frequency compatible electromagnetic wave absorption sheet" and "electromagnetic wave shielding fabric" designed for the 5G era, featuring a new absorption sheet that is compatible with millimeter-wave radar bands. The materials, mixing ratios, and film thickness of the electromagnetic wave absorption layer and metal reflection layer can be customized to match the frequencies emitted by electronic devices.
【High-Frequency Electromagnetic Wave Absorbing Sheet】 This is a thin sheet that absorbs high-frequency electromagnetic waves. We propose product forms tailored to your needs, including laminated adhesives. This product excels in electromagnetic wave absorption performance at oblique angles, is easy to process and install due to its thin sheet form, and has excellent durability. It is ideal for countermeasures against TX-RX coupling in modules such as ETC (5.8GHz), X-band (8-12GHz), ship radar (3GHz, 9GHz), proximity radar (24GHz), high-speed wireless transmission (38GHz), high-speed wireless LAN (60GHz), and vehicle-to-vehicle radar (76GHz), as well as for absorbing unwanted radiated noise, addressing misoperation due to ETC multipath reflection, and ghosting issues caused by nearby metal structures in radar applications. 【Electromagnetic Wave Shielding Fabric】 ● Compared to shielding measures using metal, it is lightweight and easy to handle. ● Ventilation holes: High breathability conductive fabric allows for shielding at the hole areas. ● It shields low-frequency magnetic fields, has excellent high-frequency shielding performance, and offers outstanding breathability and flexibility typical of fibers/fabrics. It is lightweight and has excellent processability for sewing and cutting, using polyester threads that do not generate dust.
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[Over 1000 measures implemented] A method to solve radio interference and reading errors of electronic tags (resolved through store renovations in apparel, specialty stores, supply chains, etc.) is explained with photos. The construction points of non-combustible aluminum SS sheets (essential under interior restrictions) are clearly visible at a glance.
●One day, if the electronic tag (RFID) is affected by interference, I think it would be good to use this guide to take countermeasures. ●Improvements implemented based on issues are published with photos. ●The construction procedure for the wall includes explanations with photos on the overlap of aluminum sheets, the pitch for tacker fixation, and the method of fixing with aluminum tape. ●Measures for leakage from outlets and embedded lighting fixtures that occurred during actual construction are also noted. Due to the recent pressure on radio waves leading to frequency shifts and reorganization, as well as the increase in RFID users and other wireless devices, it is not uncommon for issues such as radio wave interference to occur as a result of these influences. UHF band IC tags have a long communication distance of about 3 to 5 meters, which can lead to interference when multiple IC tag readers are installed in close proximity. In particular, in Japan, the bandwidth allocated to UHF band IC tags is narrow at 2 MHz (for high-output types, while low-output types like handheld devices have 3 MHz), making it difficult to avoid interference. Wireless sensor networks utilize the high radio reach of the 920 MHz band and, through high reliability via multi-hop communication, are accelerating wireless IoT solutions.
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Countermeasures against RFID mutual interference: The 'non-combustible (mandatory under interior restrictions) aluminum SS sheet' that shields radio waves resolves issues of radio wave interference and misreading of tags in apparel, specialty stores, and supply chains, making it possible to conduct inventory segregation in the same area, which has been considered difficult with RFID until now.
【Over 1000 successful measures】●Before the measures, the electronic tags (RFID) on the apparel store side were being read by the reader on the back-end side, causing disruptions to operations. To resolve this, we spatially separated the areas with a non-combustible SS sheet partition (constructed on the back-end wall to prevent multi-path interference, with ceiling construction depending on the environment), thereby reducing the impact of mutual interference. The non-combustible aluminum electromagnetic wave shielding sheet we used has obtained 'F☆☆☆☆ certification and fire prevention certification (non-combustible: NM-1776)'. With the reinforcement material made of sturdy glass cloth, it exhibits strength that has not been seen before, making it less prone to holes or cracks due to bending during installation, unlike conventional products. The joints and holes are reinforced with SS tape of the same material, enhancing workability and providing excellent shielding performance. It has been used after passing installation performance tests at our EMC experimental building. We receive inquiries and consultations such as "I want to use it in this kind of place?" and "I'm having trouble utilizing it effectively," and we implement and measure the improvements discussed and proposed, reflecting them in our products. 'Smiring Company,' which continuously evolves to meet the diverse needs of this era, is Koyo Sangyo Co., Ltd.

About光洋産業
We provide a good radio environment for the 5G x IoT society with our original functional composite material, born from the corporate philosophy of 'Effort + Inspiration + Persistence = Creation.'
Our mission is to add our unique ideas and know-how to the new materials that are continuously emerging, in order to meet the needs of various industries, and to propose them as new products with added functionalities. Our functional composite materials exhibit excellent and original features across various fields, including home appliances, precision equipment, medical devices, construction, and transportation, as well as in areas such as equipment parts, special rooms, and architectural panels, thereby serving everyone effectively. "Reflecting the times and exploring the next generation" is our pride in our continuous development capabilities that lead the industry. We offer a variety of electromagnetic wave countermeasure products. Furthermore, to carry out these measures effectively and efficiently, we have established a system that allows us to conduct electromagnetic wave environment measurements, field surveys, construction advice, and shielding work consistently. Technology is not born overnight. Our employees cherish a proactive attitude towards "technologies that no one is doing," "technologies that are deemed impossible," and "unique technologies." In development, not everything is successful; in fact, failures are more common. However, it is also true that the byproduct technologies born from challenges support our company today.