朝日ラバー List of Products and Services

The "Soft Protective Cover" is a product that firmly protects sensing components and electronic circuits from harsh usage environments due to the softness of silicone rubber. Thanks to the flexibility of silicone rubber, it protects internal components such as circuit boards, batteries, and antennas from impacts caused by drops and vibrations. Additionally, it is environmentally friendly and can be bent even when covered, thanks to the inherent flexibility of rubber. 【Features】 ■ Excellent shock resistance ■ Flexible ■ High waterproof and dustproof properties ■ Consideration for the environment *For more details, please download the PDF or feel free to contact us.

• Rubber

The "Rubber Phantom" is a durable silicone phantom that can be used for a long time. It is resistant to damage and easy to handle, and because it is made of rubber, it is shock-resistant, reducing the risk of breaking or chipping when knocked over. Additionally, we can create not only blocks, sheets, and spherical shapes but also individual parts such as heads and arms. 【Features】 ■ Freely control electrical characteristics ■ Resistant to damage and easy to handle ■ Stable characteristics over a long period ■ Customizable shapes *For more details, please download the PDF or feel free to contact us.

• Rubber

"F-TEM" is a flexible thermoelectric module that possesses the unique flexibility of rubber. By changing from ceramic to rubber, various features are created, allowing for attachment to two-dimensional curved surfaces and adhesion with soft materials. It can be used for both temperature control applications and power generation applications. [Features] ■ Can be attached to two-dimensional curved surfaces ■ Shock resistant ■ Vibration resistant ■ Lightweight ■ Adhesion with soft materials *For more details, please download the PDF or feel free to contact us.

• Other electronic components and modules

We offer "Rubber for In-Vehicle Switches" that can be used in various locations within automotive interiors. Through our unique material formulation technology and precise mold design, we manufacture products tailored to your requirements for operating load, stroke, and click rate. Additionally, we maintain strict quality control even in mass production, keeping load variation within ±15%. 【Features】 ■ Fast and accurate molding technology ■ Extensive mass production experience ■ Compatible with short strokes *For more details, please download the PDF or feel free to contact us.

• Interior parts

Our company handles "functional materials" such as silicone rubber, which excels in heat resistance, cold resistance, and processability. While utilizing the elasticity, resilience, and flexibility of rubber, we discover new functions of rubber tailored to your needs and propose suitable materials. We respond to your requests with soft materials and compounding technology. 【Features】 ■ Conductivity ■ Thermal conductivity ■ Heat resistance ■ UV resistance ■ High transparency ■ Re-sealability *For more details, please download the PDF or feel free to contact us.

• Rubber

"Super hydrophilic silicone rubber" is a silicone rubber that allows for partial control of hydrophilic and hydrophobic properties. Through our core technologies, "surface modification technology" and "material modification technology," we can transform hydrophobic silicone rubber into hydrophilic rubber and maintain these properties stably over a long period. Additionally, it is possible to manufacture products using transparent materials. [Features] - Minimal changes over time - Sterilization resistance - Low toxicity - Partial control of hydrophilic and hydrophobic properties - Capability to produce products using transparent materials *For more details, please download the PDF or feel free to contact us.

• Rubber

The "AR Ultra-Thin Silicone Sheet" is a high-precision PDMS rubber sheet that can be used for various applications. It features waterproof and dustproof properties, high gas permeability, flexibility, and adhesiveness, with a solvent-free and low-toxicity composition and a high transparency of 94% light transmission. It can be used for applications such as cell culture, microfluidic devices, simulated skin, and sealing. 【Features】 ■ Waterproof and dustproof ■ High gas permeability ■ Solvent-free and low toxicity ■ Flexibility and adhesiveness ■ High transparency with 94% light transmission *For more details, please download the PDF or feel free to contact us.

• Rubber

The "AR Check Valve" is a naturally dripping check valve produced in factories that use environmentally friendly, CO2-free electricity. Thanks to reliable quality control made in Japan, all units undergo functional testing. It is mainly used in medical circuit products, various analytical devices, and various dispensers, and small lot production is also possible. 【Features】 ■ Safety for medical use ■ Clean production environment ■ Small lot production is also possible *For more details, please download the PDF or feel free to contact us.

• valve

The "medical gasket" is a gasket (cap) for pre-filled syringes. It is possible to freely change the hardness and color, and we develop and propose materials according to the filling solution. Additionally, it complies with USP, EP, and JP standards, and has a track record of obtaining drug master file numbers. 【Features】 ■ Customizable materials ■ Compliance with global standards ■ Achieves low sliding ■ Extensive mass production experience *For more details, please download the PDF or feel free to contact us.

• Other medical supplies and cosmetic manufacturing materials

We offer silicone rubber color filters for lighting color conversion. The main features are heat resistance and minimal color fading, taking advantage of the properties of silicone rubber, making them suitable for various lighting applications such as store interiors and outdoor floodlights. Additionally, thanks to our unique color matching technology, we can also create custom colors, dimming filters, and diffusion filters. 【Features】 ■ Highly durable and long-lasting ■ Easy to process ■ Custom color production is possible ■ Color conversion sheets with minimal color fading *For more details, please download the PDF or feel free to contact us.

• Filters

The "White Silicone Ink" is a high-reflective paint that utilizes the weather resistance of silicone, maintaining reflectivity while suppressing yellowing caused by heat and ultraviolet rays. Various application methods such as screen printing, coating, and spray spraying are possible to suit different uses. Additionally, our unique formulation technology has achieved a maximum visible light reflectance of 95%. 【Features】 ■ Heat and UV resistant ■ High reflectivity ■ Various application methods available ■ High diffusion ■ Can be wiped with water ■ Strong against impact, making the painted surface less likely to crack *For more details, please download the PDF or feel free to contact us.

• paint

"ASA COLOR LENS" is a highly reliable lens for LEDs that meets the specifications required for automobiles. It transmits wavelengths from near ultraviolet to near infrared (350 to 1000 nm), achieving an average transmittance of 95.4%, which is characterized by high transparency. In addition to the design of light distribution, we also handle the design of shapes related to installation, as well as the optical design of plastic and glass lenses. [Features] ■ Strong against heat and UV ■ High transparency ■ Wide freedom of shape ■ Easy prototyping *For more details, please download the PDF or feel free to contact us.

• lens

The "ASACOLOR LED-EMMO" is an LED light source that combines Asahi Rubber's technology for converting light wavelengths with the measurement technology of Saitama University, enhancing its functionality. It offers a study light source that makes text easy to read and promotes alertness, as well as a work light source that minimizes drowsiness and fatigue. Additionally, it includes a sleep-inducing light source that has a calming effect, suitable for bedside lamps and reading lights before sleep. 【Product Lineup】 ■ Study Light Source ■ Work Light Source ■ Sleep-Inducing Light Source *For more details, please download the PDF or feel free to contact us.

• LED

"ASA COLOR LED" is a high-quality LED with a rich variety of over 10,000 colors. All production is conducted domestically, and since the start of sales, the total sales have reached approximately 2.8 billion units. Additionally, we establish color standards based on chromatic coordinates, correlated color temperature, and color temperature deviation, and we propose specifications tailored to your needs. 【Features】 ■ Suppression of color and brightness variation ■ Abundant color variations ■ Color mixing by specialized technicians ■ "Light-blocking technology" to reduce brightness ■ Stable quality *For more details, please download the PDF or feel free to contact us.

• LED

We would like to introduce Asahi Rubber Co., Ltd.'s "Energy Harvesting." F-TEM generates electric power when a temperature difference is applied to the top and bottom surfaces of the product. Our company proposes a battery-less system utilizing F-TEM's environmental power generation for sensing applications and the growing use of IoT. [Overview] ■ Developed Product: F-TEM Environmental Power Generation *For more details, please refer to the related links or feel free to contact us.

• others

"F-TEM" is a thermoelectric module that possesses the unique flexibility of rubber. It achieves shock and vibration absorption, as well as significant weight reduction. You can obtain two effects with a single device. Please feel free to contact us when you need assistance. 【Features】 ■ Can be mounted on curved surfaces ■ Absorbs shock ■ Absorbs vibration ■ Significant weight reduction ■ Follows contours due to soft material *For more details, please refer to the related links or feel free to contact us.

• Rubber

We would like to introduce our "products for wind turbine blades." Our lineup includes: - "Plasma Actuator" to improve the efficiency and lifespan of wind turbine blades - "Diverter Strip" to protect blades from severe lightning in Japan Please feel free to contact us when you need assistance. 【Product Lineup】 ■ Plasma Actuator ■ Diverter Strip ■ Protective Sheets and Protective Shells *For more details, please refer to the related links or feel free to contact us.

• Actuator

The "CA Trainer" is a miniature for learning and observing coronary angiography. It allows intuitive understanding and learning of how the three coronary arteries of the heart—the "left anterior descending artery," "left circumflex artery," and "right coronary artery"—are oriented and how they appear. It is used in medical schools, nursing schools, and clinical engineering technician programs. 【Features】 - Compact and lightweight for easy handling and viewing from different angles - Good visibility with color-coded coronary arteries by type - Clear explanations of actual appearances and common names used in hospitals *For more details, please refer to the related links or feel free to contact us.

• others

"Rebel Up" is a puncture simulator that reproduces the sensation of human skin, blood vessels, and muscles by combining multiple materials and circulating simulated blood, closely mimicking the feel of a human arm. The durable arm model with a realistic feel increases the frequency of training sessions and significantly improves puncture techniques. The "pop" sensation is recreated, providing realistic puncture practice. 【Features】 ■ Average of 30 punctures at 100 mmHg pressure with a 16G puncture needle ■ The "pop" sensation is recreated, offering realistic puncture practice ■ Simulated blood is less likely to leak ■ Unique materials are used for simulated blood vessels and skin ■ Compact design allows for practice anywhere *For more details, please refer to the related links or feel free to contact us.

• simulator

Our company can transform silicone rubber, which is water-repellent, into super-hydrophilic using our unique new technology. It is possible to achieve hydrophilicity not only in sheet shapes but also in three-dimensional shapes. It has low toxicity and can be used in various applications. Please feel free to contact us when you need assistance. 【Features】 ■ Minimal aging changes ■ Freedom of shape ■ Low toxicity *For more details, please refer to the related links or feel free to contact us.

• Rubber

We would like to introduce the medical rubber products handled by Asahi Rubber Co., Ltd. These include rubber stoppers for intravenous infusion bags, rubber stoppers for vacuum blood collection tubes, and rubber stoppers for drug mixing, which are used in disposable products in medical settings. Since they are used in medical devices and medical supplies, these products comply with various regulations and meet strict quality standards regarding material safety and functions to prevent medical accidents. [Applications] ■ Rubber stoppers for intravenous infusion bags ■ Rubber stoppers for vacuum blood collection tubes ■ Rubber stoppers for drug mixing *For more details, please refer to the related links or feel free to contact us.

• Rubber

This product is an AR check valve used to prevent backflow of liquids/gases, incorporated into circuits of medical devices and life science-related equipment/instruments. It is produced safely and securely in Japan, in an environment equivalent to ISO Class 7/US Class 10000. It is provided with annealing treatment to prevent dimensional changes. Please feel free to contact us when you need it. 【Features】 ■ Safety for medical use ■ Clean production environment ■ High versatility ■ Minimal aging changes *For more details, please refer to the related links or feel free to contact us.

• valve

This product is a gasket used in syringes that have been pre-filled with medication. It allows for improved initial sliding and suppression of pulsation. We also offer customization of rubber materials according to the filling medication using our unique formulation technology. Please feel free to contact us when you need assistance. 【Features】 ■ AR coating ■ Abundant mass production track record ■ Compliance with global standards ■ Flexible prototyping and mass production support *For more details, please refer to the related links or feel free to contact us.

• others

We would like to introduce "ASA COLOR Applied Products" from Asahi Rubber Co., Ltd. We offer a lineup that includes "ASA COLOR LAMPCAP," which incorporates coloring agents and pigments into silicone rubber, and "Phosphor Sheets/Phosphor Tubes," which incorporate phosphors into silicone rubber. Please feel free to contact us when you need our products. 【Features】 ■ ASA COLOR LAMPCAP - Incorporates coloring agents and pigments into silicone rubber - Allows for various colors by covering small light bulbs (lamps) - Adopted as a light source for automotive interior lighting ■ Phosphor Sheets/Phosphor Tubes - Molded products incorporating phosphors into silicone rubber *For more details, please refer to the related links or feel free to contact us.

• Rubber

This product is a silicone rubber cap that converts the light of a highly directional bullet-type LED into diffused light by attaching it to the LED. It complies with RoHS2 and is available for φ3, φ5, and φ10 sizes. Additionally, there are colored caps available in bulb color, red, blue, green, and more. Please feel free to contact us if you need any assistance. 【Lineup】 ■AM-2805L ■A-29038L ■A-48068L ■A-48076L ■A-4910 ■A-10013 *For more details, please refer to the related links or feel free to contact us.

• Rubber

This product is a deep ultraviolet silicone lens that has passed a heat resistance test at 150°C for 1,000 hours. It is also compatible with lead-free reflow at 275°C. Using accumulated mold technology, we can also mold complex shapes. Please feel free to contact us when you need assistance. 【Features】 ■ Light resistance ■ High transmittance ■ Heat resistance ■ Capable of achieving complex shapes *For more details, please refer to the related links or feel free to contact us.

• lens

The "ASACOLOR LED-EMMO" is a new series of light sources developed in collaboration with Saitama University as part of Asahi Rubber's flagship product "ASA COLOR LED." It provides light sources that make you feel less drowsy and allow for clear reading of text. By verifying functionality (effects) tailored to specific situations, we aimed to create products that easily reflect customer requests. 【Features: Study Light Source】 ■ Reduces text blurriness ■ Makes it easier to stay awake ■ No change in fatigue levels ■ No change in perceived color *For more details, please refer to the related links or feel free to contact us.

• LED lighting

The "SPC431J/550J" is a dustproof and waterproof IoT device that protects the main unit with a "soft protective cover" made of silicone rubber by Asahi Rubber, adding dustproof and waterproof functionality to the low-power wireless communication modules "STM431J" and "STM550J." The "soft protective cover," made from high-transparency grade silicone rubber, transmits 94% of sunlight. It contributes to the construction of an IoT system that can be used for long periods without power supply, without significantly reducing the power generation efficiency of the solar power components mounted on the module. 【Features】 ■ Flexible ■ Shock-resistant ■ UV-resistant ■ Waterproof ■ Dustproof ■ Dirt-resistant *For more details, please refer to the related links or feel free to contact us.

• Other PCs and OA equipment

Our company provides dry models of simulated organs, skin, and blood vessels that replicate structures and textures close to those found in living organisms, using "low hardness materials." We offer a uniquely developed material called "CRYSTAL GEL," which is transparent and has over 1,000% high extensibility, as well as a specialized silicone rubber called "TOUGHSILON," which significantly improves the strength of conventional silicone rubber. Additionally, we can manufacture ultra-low hardness urethane processed products primarily for medical simulated organs, greatly improving stickiness. 【Products (Excerpt)】 ■ Suturing Models - Small Intestine Model (2 layers): TAR-01 - Large Intestine Model (2 layers): TAR-02 - Intestinal Model (1 layer): TAR-03 - Suturing Technique Practice Kit: TAR-04 *For more details, please refer to the PDF document or feel free to contact us.

• Rubber
• Other laboratory equipment and containers

The "AR Ultra-Thin Film Silicone Sheet," made of ultra-thin silicone, is a high-precision rubber sheet that can be used for various applications. It boasts excellent flexibility and can be finely processed. It can be used in a variety of applications, including cell culture, medical use, and analytical instruments. Additionally, it has high transparency, making it suitable for observation under a microscope. 【Features】 ■ Achieves a thickness of 30μm without solvents ■ Excellent flexibility and capable of fine processing ■ Usable in various applications such as cell culture, medical use, and analytical instruments *For more details, please refer to the PDF document or feel free to contact us.

• Rubber

The thermoelectric module (power generation module) "Flexible Thermoelectric Module" is a power generation module that has the flexibility unique to rubber. It can generate electricity from temperature differences (Seebeck effect) and reuse waste energy. Additionally, by using electricity for heat dissipation/absorption (Peltier effect), it operates silently and without vibration, accommodating both heating and cooling. 【Features】 ■ Can be mounted on curved surfaces ■ Absorbs shocks ■ Absorbs vibrations ■ Significant weight reduction ■ Follows contours due to soft materials *For more details, please refer to the PDF document or feel free to contact us.

• Generators and transmission motors
• Other energy equipment

Our company produces "rubber for automotive switches" using our unique material formulation technology and precise mold design, tailored to your requirements for operating load, stroke, and click rate. By simply specifying the F-S target values and key dimensions, we can provide samples with characteristics close to your needs from dozens of stock options. In mass production, we maintain strict quality control, keeping load variation within ±15%. We have a proven track record of being installed in numerous vehicles. 【Features】 ■ Capable of keeping load variation within ±15% ■ Supports short strokes ■ Proven stroke range of 0.6 to 1.4 mm ■ Usable in various locations within automotive interiors *For more details, please refer to the PDF document or feel free to contact us.

• Other Auto Parts
• Mold Design

Our company handles "functional materials." Through our material modification technology, we discover new functions of rubber that meet your needs while utilizing the elasticity, resilience, and flexibility inherent in rubber, and we propose suitable materials. We offer "silicone rubber," which excels in heat resistance and cold resistance and has good processability, as well as "natural rubber" products that leverage the material's inherent mechanical strength, characterized by high strength and high resilience. [Main Materials] ■ Silicone Rubber: General-purpose silicone rubber / High-durability silicone rubber, etc. ■ Synthetic Rubber: Nitrile rubber / Ethylene propylene rubber / Neoprene rubber, etc. ■ Natural Rubber ■ Medical Materials: Medical silicone rubber / Isoprene rubber, etc. *For more details, please refer to the PDF materials or feel free to contact us.

• Rubber

"White Silicone Ink" is a high-reflective paint with excellent heat resistance and UV resistance. It surpasses general white resin materials in terms of UV resistance and heat resistance. By applying it to LED printed circuit boards, it is possible to enhance the light extraction efficiency of the LEDs. It can also be used as a reflective layer for both rigid substrates and flexible substrates that can be bent. 【Features】 ■ High reflectivity of over 95% ■ Particularly excellent heat resistance, suitable for use on ceramic substrates ■ A lineup of products that not only includes ink but also products coated with ink on materials such as film and aluminum, as well as aerosol spray products *For more details, please refer to the PDF document or feel free to contact us.

• paint

"ASA COLOR LENS" is a silicone lens for LEDs that accommodates ultraviolet light, visible light, and infrared light. Due to its UV resistance and weather resistance, it can also be used for near-ultraviolet LEDs and blue LEDs at a wavelength of 365nm. It has high transparency and transmits wavelengths in the near-ultraviolet to near-infrared range (350 to 1000nm), achieving an average transmittance of 95.4% (as measured by our company). 【Features】 ■ Heat resistance - Compatible with lead-free reflow at 275°C ■ High molding freedom - Accommodates shapes that are difficult to mold with plastic - Prototyping is possible from the optical design stage *For more details, please refer to the PDF document or feel free to contact us.

• lens
• Processing Contract
• Mold Design

The "Color Filter" is a product made of silicone rubber for lighting color conversion. It has a heat resistance temperature of 150°C, with continuous LED lighting lasting 10,000 hours, and has been proven to withstand 1,000 hours of outdoor exposure testing. Its main features are heat resistance and minimal color fading, taking advantage of the properties of silicone rubber, making it suitable for various lighting applications such as store interiors and outdoor floodlights. 【Features】 ■ Custom cutting to desired shapes (strip, circular, etc.) ■ Support for adhesive tape processing ■ Our unique color matching technology ■ Capable of producing original colors, dimming filters, and diffusion filters *For more details, please refer to the PDF document or feel free to contact us.

• Other filters

The "ASA COLOR LED" is a high-quality LED that features a silicone cap blended with phosphors, placed over a blue LED. We establish color standards based on chromaticity coordinates, correlated color temperature, and color temperature deviation, and propose specifications that meet your requirements. We will respond quickly to align with your design schedule, so please feel free to consult with us. 【Features】 ■ Suppression of color and luminous intensity variation - By classifying LEDs by wavelength rank and applying a color cap tailored to each rank, we suppress variations in color and luminous intensity. ■ Light-shielding technology to control brightness - Allows for simultaneous color matching and light shielding. - Avoids unstable lighting under low current conditions, enabling brightness adjustment while maintaining rated operation. *For more details, please refer to the PDF document or feel free to contact us.

• LED Module

Our company offers "optical design contracting." From the development of "lamp caps for lighting" to "ASA COLOR LED" and "ASA COLOR LENS," we leverage the experience and achievements we have cultivated over many years in the lighting field to solve our customers' problems. We not only provide optical design for lenses but also accept design requests related to mounting shapes. 【Main Design Achievements (Partial)】 ■Shapes - Aspherical lenses - Fly-eye lenses - Fresnel lenses - Cylindrical lenses - Freeform lenses *For more details, please refer to the PDF document or feel free to contact us.

• lens
• Processing Contract
• Other contract services

Our company offers proposals and contract services for the 'ASA COLOR LENS', a lens for UV to infrared LEDs made from highly transparent silicone rubber. We can provide engineering design tailored to your desired LED. We also offer integrated LED light source solutions. Additionally, we provide total coordination from engineering design to silicone lens assembly, which can lead to reductions in parts and labor costs. 【Features of ASA COLOR LENS】 ■ Heat resistance: Passes heat resistance tests of over 150°C for 1,000 hours ■ UV resistance: Usable with various types of LEDs ■ Molding flexibility: Capable of accommodating shapes that are difficult to mold with plastic or glass ■ High safety: Resistant to breakage and lightweight *For more details, please refer to the PDF document or feel free to contact us.

• lens
• Contract manufacturing

Here are some representative items that utilize our unique blending and coloring technologies: ■ ASA COLOR LED Compared to standard LEDs, we can custom create original colors even in small quantities. It has features such as minimal color change during long-term use and less color variation both within and between batches compared to 3-in-1 type LEDs. ■ ASA COLOR LENS These are silicone lenses that excel in light resistance and heat resistance compared to typical resin lenses. They have excellent wavelength transmission rates from near ultraviolet to infrared and do not deform at Pb-free reflow temperatures. We have a strong track record of supplying these to LED manufacturers. ■ ASA COLOR LAMP CAP This is a color cap that changes the emitted color of small bulbs (lamps). Our unique technology reduces the siloxane contained in silicone rubber. We have over 40 years of experience in automotive interior lighting. ■ Color Filter This is a colored rubber sheet that changes the lighting color of LED lighting fixtures. Compared to standard filters, it has excellent light resistance and heat resistance, making it less prone to discoloration.

• Chip type LED
• lens
• Rubber

■ Utilizing stretchability, elasticity, and flexibility, various functions such as conductivity, thermal conductivity, heat resistance, UV resistance, transparency, and resealability can be incorporated. ■ We also offer custom formulations tailored to your needs. ■ Through material modification technology, we discover and propose new functions.

• Rubber
• Other machine elements

■ Utilizing stretchability, elasticity, and flexibility, various functions such as conductivity, thermal conductivity, heat resistance, UV resistance, transparency, and resealability can be incorporated. ■ We also offer custom formulations tailored to your needs. ■ Through material modification technology, we discover and propose new functions.

• Rubber
• Other machine elements
• Other physicochemical equipment