利昌工業 List of Products and Services

This is a printed circuit board material with high dielectric constant (Dk=11.3) and low dielectric loss tangent (Df=0.003). It is a type reinforced with glass cloth using PPE resin (polyphenylene ether), allowing the use of existing machinery and know-how for processing glass epoxy type printed circuit boards (FR-4). We also have prepreg for multilayering (ES-3346) and interlayer adhesive sheets (AD-3396).

• Composite Materials

This is an FR-4 type printed circuit board material with a white appearance designed to accommodate LED elements and LED components.

• Composite Materials

EN 45545-2 is a standard that summarizes the requirements for the combustion behavior of parts and materials used in European railway vehicles. Depending on the application, there are requirements ranging from R1 to R26, and hazard levels (HL1 to HL3) are defined based on the operation and structural classification of the vehicles. The Risholite glass fabric-based epoxy resin laminate ES-3751SH is composed of resin and glass fabric that minimizes smoke generation. As a result of tests conducted based on EN 45545-2 / R23 (for exterior applications), it was found to meet the criteria for hazard level 3 (HL3) across all combustion behavior classifications.

• Engineering Plastics

Glass fabric substrate epoxy resin printed circuit board materials are referred to as FR-4 in the industry. The thermal conductivity of standard FR-4 is about 0.3 W/mK. In contrast, Risholite high thermal conductivity FR-4 offers a lineup with thermal conductivities of 1.8 W/mK, which is six times that of standard products, and 3 W/mK, which is ten times higher. Since heat dissipation substrates can be manufactured using existing equipment, we have received many adoptions.

• Composite Materials

It is designed to handle harmonic currents emitted by thyristors and inrush currents associated with repeated power supply activation.

• Other energy equipment

We have a lot of delivery experience in accident current measures for facilities that generate electricity using renewable energy sources such as solar power, wind power, biomass, and small hydropower.

• Other energy equipment

●Dk=3.01 / Df=0.0019 @80GHz ●High resin fluidity and excellent circuit embedding properties ●Composite substrate with PTFE substrates or MPI substrates is possible ●Can be laminated at a relatively low temperature of 180°C due to thermosetting properties ●Suitable for skew prevention without including glass cloth ☆This material is for manufacturers of printed circuit boards.

• Other polymer materials

This product consists of a thermosetting resin blended according to its intended use, stretched to approximately 120 micrometers, and provided sandwiched between release films. This material is intended for printed circuit board manufacturers and is not something that can be adhered at room temperature and atmospheric pressure like commercially available double-sided tape. The resin is delivered in a semi-cured (B-stage) state. Depending on the season, thermal curing may begin due to outdoor or room temperatures, so we may deliver it using a so-called "cool delivery" service after consulting with the customer.

• plastic

It is a substrate material that experiences minimal signal attenuation and speed reduction even when high-frequency signals flow through the circuit of a printed circuit board. 5G communication exchanges large amounts of data using high-frequency signals such as 28 gigahertz. Substrates used in devices like antennas, servers, and switches require this characteristic of "low transmission loss."

• Composite Materials

When surface mount components are soldered onto an aluminum base printed circuit board, the aluminum plate repeatedly expands and contracts due to heat, causing stress to accumulate at the solder joints, leading to fatigue failure (solder cracks). The insulation layer of AC-7302 is very soft (low elasticity), which can help alleviate the stress on the solder joints.

• Composite Materials

Once upon a time, there was a comedy routine that asked, "Where do you bring in the subway trains?" However, there are often cases where the delivery route is blocked when adding or replacing transformers in the electrical room. When the electrical room is underground, issues such as weight limits on the delivery elevator can also arise. In such cases, Rishou Kogyo can respond by delivering the transformer in parts, such as the "core" and "coil," and then assembling it on-site. This is made possible by the Rishoucast transformer, which features a robust molded coil reinforced with fiberglass instead of using insulating oil. Here is one example of this.

• Other energy equipment

The transformers installed in wind power generation systems are exposed to changes in current and voltage far more frequently than those installed in general power distribution equipment, and the extent of these changes is also significantly greater. Furthermore, they are often installed in mountainous areas, coastal regions, or offshore, operating under the influence of wind, rain, temperature changes, humidity, and salt air. With Rishokycast molded transformers, we can address these issues faced by transformers used in wind power generation. The photo shows a 2300 kVA self-cooling step-up transformer installed inside the tower of a floating offshore wind turbine.

• Other energy equipment

Paper-based phenolic resin laminated sheets are thermosetting fiber-reinforced plastic sheets that are highly regarded as excellent insulating materials. PS-1571 is designed to have a surface resistivity of approximately 10^6 ohms/sq. This surface resistivity allows for relatively quick dissipation of static electricity without causing intense discharges (sparks) when in contact with charged electronic components.

• Engineering Plastics

This is a printed wiring board material (copper-clad laminate) developed for electronic devices related to the rapid advancement of automotive electrification and electronic control. It is a printed wiring board material equipped with the necessary performance for various in-vehicle devices such as LED lamps, engine control units, power control units, and millimeter-wave radars. [Contents] - High thermal conductivity copper-based printed wiring board material for inverter/converter substrates [CC-7210] - Long-term high heat resistance CCL for engine control unit substrates [CS-3305A] - Low transmission loss CCL for millimeter-wave radar substrates [CS-3379M] - Solder crack resistant aluminum-based substrate material for LED headlight substrates [AC-7303] - High heat-resistant black CCL that does not transmit light for optical sensor substrates [CS-3667B] - High thermal conductivity white CCL for LED substrates [CS-3945] - High thermal conductivity adhesive sheet/copper foil with resin For more details, please download the PDF or contact us.

• Other polymer materials

The printed circuit board materials for millimeter-wave radar substrates require the performance of "low transmission loss," which has led to the prevalence of expensive PTFE (polytetrafluoroethylene) and LPC (liquid crystal polymer) based materials. CS-3379M is based on the more affordable PPE (polyphenylene ether) and achieves low transmission loss. It is expected to offer low transmission loss performance comparable to PTFE substrates while being available at about half the price.

• Other polymer materials

This is a printed circuit board material (copper-clad laminate) developed for electronic devices related to the rapid advancement of automotive electrification and electronic control. It is a printed circuit board material equipped with the necessary performance for various in-vehicle devices, such as LED lamps, engine control units, power control units, and millimeter-wave radars.

• Other polymer materials

"Woodlight" is a type of plywood or laminated veneer lumber (LVL). It is made by impregnating thin sheets (veneers) of wood that have been peeled in a "katsura" style with phenolic resin, then stacking a specified number of these sheets and pressing them under high temperature and high pressure. Recently, cellulose nanofibers have been gaining attention, but "Woodlight" is a unique FRP board reinforced with natural wood, meaning it is made from full-size cellulose. ■ Features 1. There is no degradation in its electrical and mechanical properties, whether in oil or air. 2. Even after long-term immersion in water, the recovery of insulation resistance is quick, and unlike ordinary plywood, there are no concerns about delamination, warping, twisting, or cracking. 3. Compared to insulating wood injected with natural wood oil or paraffin, it not only significantly outperforms in electrical, mechanical, and water resistance properties but is also stable due to its uniform composition. 4. It is rich in moisture resistance, heat resistance, and chemical resistance. 5. The unique appearance created by the wood grain and layers is further enhanced by a buff finish, giving it a more elegant luster.

• Engineering Plastics
• wood

"Woodlight" is a type of plywood or laminated veneer lumber (LVL). It is made by impregnating thin sheets of wood (veneer) that have been peeled in a "katsura" style with phenolic resin, and then pressing them together under high temperature and high pressure in a specified number of layers. Recently, cellulose nanofibers have been gaining attention, but "Woodlight" is a unique FRP board reinforced with natural wood, meaning it is made from full-size cellulose.

• Engineering Plastics
• wood

Glass cloth epoxy resin laminates are machined into various shaped parts and are applied in areas where metals are unsuitable, such as where electrical insulation, rust prevention, corrosion (electrolysis) prevention, or magnetization prevention is required. With the addition of L-shaped materials to the lineup, the variety of machining options will expand, and we hope that glass cloth epoxy laminates will be adopted in more industrial fields.

• Engineering Plastics

【Features of Ricocalm】 ○ Excellent vibration damping effect η = 0.41 ○ Excellent sound insulation TL = 30dB (4000Hz) ○ 40% weight reduction compared to steel plate-based damping materials ○ Obtained "Flame Retardant Covering Material" certification from the Nippon Kaiji Kyokai (ClassNK) ○ Obtained "Primary Deck Covering Material" certification from the Nippon Kaiji Kyokai (ClassNK)

• Composite Materials

Power devices, which are semiconductors for power conversion, and high-brightness LEDs generate significant heat, so they are mounted on printed circuit boards based on aluminum plates. In this case, when the aluminum plate expands or contracts due to heat, it puts stress on the solder joints of the components. If this stress accumulates, it can lead to "solder cracks." The newly developed 7303 series resin remains very flexible even after curing, allowing it to absorb dimensional changes caused by the expansion and contraction of the aluminum plate. As a result, the stress on the solder joints is alleviated, helping to prevent the occurrence of cracks.

• plastic

It is a black printed circuit board material that does not transmit or reflect light, even with a thickness of only 0.1mm. It absorbs not only visible light but also light from sensors, commonly used in the red to near-infrared range (wavelengths of 650 to 1310 nanometers). The glass transition temperature is 250°C, with a UL flammability rating equivalent to 94/V-0, and the coefficient of thermal expansion below the glass transition temperature is 34ppm/°C, making it a high-performance printed circuit board material.

• plastic

This is a plastic sheet designed with a surface resistivity of about 10^6 ohms/square, allowing for a gentle and rapid dissipation of static electricity without causing intense discharges (sparks) when touching components that are charged with static electricity. ★We will be exhibiting at JPCA Show 2016★ Dates: June 1 (Wednesday) to June 3 (Friday) Venue: Tokyo Big Sight Time: 10:00 AM - 5:00 PM Booth number: 2E-02

• Engineering Plastics

This is a plastic sheet designed with a surface resistivity of about 10 to the power of 6 ohms/square, allowing for a gentle and rapid dissipation of static electricity without causing intense discharges (sparks) when in contact with components that carry static electricity. ★Exhibiting at JPCA Show 2016★ Dates: June 1 (Wednesday) - 3 (Friday) Venue: Tokyo Big Sight Time: 10:00 AM - 5:00 PM Booth Number: 2E-02

• Engineering Plastics

〇 Punching Process This is a processing method where the material is sandwiched between the male mold (punch) and female mold (die), and then punched out using a press machine to obtain products or parts with a specified shape. Compared to machining processes that involve cutting the material, this method has the advantage of enabling mass production in a short time, which is why many thin products and parts are produced using this technique. 〇 Thermosetting Resin Laminates The thin plastic sheets for punching processing provided by Rishou Industry are referred to as "thermosetting resin laminates" according to JIS standards. These are made by stacking a specified number of base materials (called prepreg) that have been impregnated and partially cured with thermosetting phenolic or epoxy resins onto paper, cloth, or glass fabric, and then pressing them under high temperature and high pressure. Unlike plastic sheets made by extruding or pouring thermoplastic resins into molds, these are fiber-reinforced plastics (FRP) that are enhanced with fibrous base materials, providing excellent mechanical strength and resistance to punching processes. 〇 For Cost Reduction and Production Efficiency We would like to remind you that there are plastic sheets that can withstand press punching, and we encourage you to consider these for cost reduction and production efficiency.

• Engineering Plastics

Glass fiber reinforced plastic (GFRP) not only has excellent electrical insulation properties but also possesses heat resistance, mechanical strength, and chemical resistance, all while being a type of plastic. 【Features】 - The bending strength of a 1mm thick specimen is 450 megapascals, and the tensile strength is 350 megapascals. - The heat resistance temperature is 130°C. *Even after heat treatment at 180°C for 2 hours, there is no significant change in strength or dimensions. - The insulation resistance per 1mm of material is 28,000 volts. (JIS K 6911) - This plastic exhibits extremely low discoloration and dimensional changes due to aging. - Excellent chemical resistance to oils, solvents, acids, and alkalis. 【Applications】 - Machined into parts that require mechanical strength. - Areas where metals are unsuitable. - Areas requiring electrical insulation, thermal insulation, rust prevention, corrosion (electrolytic) prevention, and magnetization prevention. By replacing other materials you have been using with this, you can achieve improved functionality and cost reduction! *For more details, please download the catalog or contact us directly.

• Engineering Plastics

This is a distribution transformer with excellent energy-saving performance that significantly reduces "no-load loss," which corresponds to standby power. The capacity of the transformer is determined based on the peak power consumption expected at the facility. Therefore, there can be a significant deviation from this capacity during nighttime, holidays, or certain seasons. In particular, in office buildings, the average load factor of the transformer, which is the ratio of average power to maximum power, is estimated to be around 30 percent, indicating that the time periods when standby power is at its maximum likely account for a considerable proportion. Thus, if you replace the 30-year-old transformer that has reached its renewal period with a Risho amorphous molded transformer, you can achieve a 50 percent energy saving and an annual reduction of 8 tons of carbon dioxide.

• Other energy equipment

The winding is reinforced with glass fiber, and after setting it in a mold, it is produced using the "mold method vacuum impregnation method," where epoxy resin is impregnated while "vacuuming." The epoxy resin is endowed with self-extinguishing properties, so there is no concern about combustion, secondary fires, or explosions. The epoxy resin is a low-viscosity type that does not contain fillers such as silica. Therefore, the resin penetrates even into the interior of the winding. Due to the vacuuming process, no air bubbles enter the resin, making it a highly reliable insulation method with no concern for partial discharge (corona) that could arise from this. The winding has a monolithic molded structure, making it resistant to moisture and preventing moisture absorption. The glass fiber-reinforced winding has excellent mechanical strength, allowing it to withstand stress during voltage switching. It can be made smaller and lighter than oil-insulated transformers, and maintenance inspections are also easy. *For more details, please download the catalog or contact us directly.*

• Other energy equipment

"Paper-based phenolic resin laminate" is a resin material (FRP) that has been sold for over 80 years at Rishou Industry, maintaining strength and insulation properties while keeping costs low. It can be produced at a lower cost than FRP made from glass fibers or carbon fibers. Additionally, it excels in machinability, allowing for significant cost reductions when used as an alternative material. ■ High resistance to solvents and oils, and strong against bending ■ Excellent machinability ■ Heat resistance up to 130℃ ■ High insulation performance (44,000 volts per 1.0 mm) *For more details, please download the catalog or contact us.

• plastic
• Engineering Plastics

These are custom-made bolts and nuts designed and manufactured according to your requests. We offer types processed from "laminated rods" with a standard diameter of up to 20mmφ and types processed from "laminated pipes" that can standardly accommodate sizes from M10 to M100. We may also be able to accommodate special sizes, so please feel free to consult with us.

• nut
• bolt

■Features ○Excellent electrical properties There are no air bubbles inside, and it has particularly outstanding through-layer dielectric strength. It can be used safely even under high voltage. ○Excellent airtightness Due to the good adhesion between the substrate and the resin, it is optimal as an insulating component where airtightness and oil tightness are required. ○Excellent mechanical strength It is manufactured using a method that does not compromise the strength of glass fibers, resulting in excellent mechanical strength. ○Usable at extremely low temperatures It can also be used in liquid helium.

• Engineering Plastics

With the spread of smartphones and tablet devices, the equipment that makes up broadband systems is required to process large amounts of data at high speeds. Additionally, to enhance "connectivity" and expand coverage areas, the installation and upgrading of base stations are being advanced. In response to this, Rishou Industry has prepared printed circuit board materials that have a fast signal propagation speed (low dielectric constant) and a function to minimize transmission loss (low dielectric loss tangent).

• Composite Materials

It is an insulating tube that combines the strength of resin pipes with the oil-impregnability of pressboard.

• cylinder

The "Industrial Winding Core" is a core made of thermosetting resin "FRP" reinforced with fibrous substrates such as paper and glass cloth. It features excellent mechanical strength, heat resistance, chemical resistance, and dimensional stability, contributing not only to increased production efficiency but also to the reduction of defects and waste. It is being showcased at the Converting Technology Comprehensive Exhibition. 【Features】 ■ Many applications with high-performance films and metal foils ■ Lighter than metal winding cores ■ Superior recovery from deflection compared to metal winding cores ■ Service life can be extended with proper maintenance ■ Custom options available *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• plastic

The substrate glass fabric uses general-purpose E-glass, which offers excellent cost performance.

• Other polymer materials

Reduces warping during reflow.

• Other polymer materials

In addition to excellent electrical insulation properties, it possesses heat resistance, mechanical strength, and chemical resistance, despite being made of plastic. Utilizing these characteristics, it is often machined into parts that require mechanical strength and installed in places where metals would be unsuitable, such as areas needing electrical insulation, thermal insulation, rust prevention, corrosion (electrolysis) prevention, and magnetization prevention. Given its reasonable price, it offers a well-balanced combination of excellent properties, allowing for potential improvements in functionality and cost reduction by replacing other materials previously used, depending on the application. Furthermore, with a specific gravity of about 1.8, for example, in situations where stainless steel (specific gravity ≈ 8.0) parts are used for rust and corrosion prevention, replacing them with this material can achieve nearly 80% weight reduction.

• Engineering Plastics

Electronic materials for heat dissipation design include high thermal conductivity materials that feature a high thermal conductivity insulating layer on the surface of aluminum or copper plates, as well as products such as copper foil laminated materials and white printed circuit board materials that excel in UV discoloration resistance and heat discoloration resistance. We support the heat dissipation design of substrates equipped with high-brightness LEDs and power semiconductors. *For more details, please download the catalog or contact us directly.

• Other polymer materials

The insulation layer contains glass cloth, which provides excellent insulation reliability. The breakdown voltage is... 5kV for an insulation layer thickness of 60μm 7kV for an insulation layer thickness of 120μm ...that is.

• aluminum

In addition to excellent thermal conductivity, it has flexibility that is so great it can bend like a crane, making it easy to handle.

• Other polymer materials

Excellent thermal conductivity

• plastic

It was developed to incorporate LED components. It is a printed circuit board material that is white and has excellent thermal conductivity (1.3W/mk). It has obtained UL94/V-0 certification.

• plastic

This is a highly thermally conductive printed circuit board material designed to accommodate components that emit high heat during operation, such as high-brightness LEDs and power semiconductors. It has been on the market for 20 years, and the lineup has been enriched, receiving many adoptions.

• aluminum

The heat emitted by high-brightness LEDs and power devices destabilizes their operation and accelerates the degradation of surrounding materials such as substrates and encapsulating resins. Therefore, substrate materials are required to efficiently transfer heat to the casing and heat sinks. High thermal conductivity printed circuit board materials support the heat dissipation design of substrates equipped with high-brightness LEDs and power semiconductors, with a thermal conductivity that is ten times greater than that of standard printed circuit board materials (FR-4). ------------------------------【Features】--------------------------------- ■ Achieves a thermal conductivity of 3.0 W/mK with glass cloth ■ Can be made thin, thus supporting thermal management from the aspect of "reducing thermal resistance" ---------------------------------------------------------------------------

• plastic

It is an adhesive thermal conductive material with high thermal conductivity and insulation reliability.

• Other polymer materials