M.WATANABE & CO.,LTD. Product Lineup

Molded products, mainly silicone rubber, are manufactured by one of our group companies, Wacom Manufacturing Co., Ltd.. Silicone rubber moldings are manufactured in a clean environment to prevent contact with foreign matter. Furthermore, the dimensional accuracy of the molded products is greatly improved and suitable for semiconductor manufacturing systems, and medical device parts. 【Features】 ■Suitable for semiconductor manufacturing systems and medical equipment. ・The product is manufactured in a clean environment free of foreign substances from material kneading to packaging. ■Capable of obtaining the original dimensional values of products. ・The general measurement of the product is by contact "Measuring rubber by crushing and deforming" but we can obtain the original dimensional values of products by non-contact measurement using an optical measuring instrument. ■Providing high quality products ・We continue to provide high-quality products to satisfy our customers by performing qualitative and quantitative analysis using analysis equipment (infrared spectroscopy), 3D laser scanning confocal microscope, rubber universal automatic hardness tester, and physical property measuring instruments. ■Waterproof parts that pass IPX7* (protection class against inundation) 　・Integral molding of different materials is also possible (resin material + silicone rubber, metal + silicone rubber, etc.) *For more details, please contact us or download the catalog.

• Other machine elements
• Food and pharmaceutical standard seals and packing products
• Rubber

In the food industry, measures to prevent foreign matter contamination in the materials used for molding are crucial to ensure food safety. Particularly in molding molds that come into direct contact with food, the presence of foreign substances can lead to serious issues. Our silicone rubber sheets are manufactured in well-cleaned factories, reducing the risk of contamination. They contribute to maintaining food quality. 【Usage Scenarios】 - Food molding molds - Food transport belts - Food packaging seals 【Benefits of Implementation】 - Reduced risk of foreign matter contamination - Maintenance of food quality - Increased efficiency in the molding process

• Rubber

In the automotive industry, seal materials with high durability, heat resistance, and weather resistance are required. Seals used in harsh environments, such as around engines and vehicle bodies, prevent leaks and deterioration, contributing to the maintenance of vehicle performance. Our silicone rubber sheets are manufactured through a process that minimizes the risk of foreign material contamination, and by providing products with various characteristics tailored to customer needs, we contribute to the improvement of automotive quality. 【Application Scenes】 - Engine gaskets - Door seals - Window glass seals - Other automotive sealing applications 【Benefits of Implementation】 - High sealing performance - Improved durability - Reduced risk of foreign material contamination - Usable over a wide temperature range

• Rubber

In the medical device industry, the safety and reliability of products are of utmost importance. Seals are essential components that maintain the airtightness of devices and prevent foreign matter contamination. Particularly in equipment used in medical settings, the leaching of substances from seals or contamination by foreign matter can have serious implications for patient health. Our silicone rubber sheets are manufactured in a well-maintained factory, minimizing the risk of foreign matter contamination. Silicone rubber sheets produced under strict quality control contribute to ensuring the safety of medical devices and protecting patient health. 【Application Scenarios】 - Seals for medical devices - Sealing materials for analytical equipment - Use in clean rooms 【Benefits of Implementation】 - Reduced risk of foreign matter contamination - Improved safety due to high airtightness - Stable performance across a wide temperature range

• Rubber

In the aerospace industry, protection of components and sealing performance under high-temperature environments are required. In particular, areas exposed to extreme temperature changes, such as around engines and the exterior of the aircraft, necessitate materials with excellent heat resistance. Improper material selection can lead to deterioration of components or malfunction, potentially compromising safety. Our silicone rubber sheets excel in heat resistance and meet the stringent demands of aerospace applications. 【Application Scenarios】 - Seals around engines - Protective materials for the exterior of the aircraft - Component cushioning materials in high-temperature environments 【Benefits of Implementation】 - Stable performance maintenance under high-temperature environments - Extended lifespan of components - Improved safety

• Rubber

In the semiconductor industry, high insulation properties are required to ensure product quality and reliability. Particularly as miniaturization progresses, contamination by foreign substances can lead to insulation failures, potentially resulting in decreased product performance or malfunctions. Our silicone rubber sheets are manufactured in a clean factory, minimizing the risk of foreign substance contamination. This ensures the insulation of semiconductor devices and contributes to improved product reliability. 【Usage Scenarios】 - Insulation applications in semiconductor manufacturing processes - Protection of electronic components - Use in cleanroom environments 【Benefits of Implementation】 - Reduction of defect rates due to foreign substance contamination - Improvement in product reliability - Assurance of stable quality

• Rubber

The silicone rubber sheets manufactured by one of our group companies, Wacom Manufacturing Co., Ltd., are produced in a well-sterilized facility with almost no contamination such as foreign matter. 【Specifications】 　・Thickness: 0.5mm, 1mm, 1.5mm, 2mm, 3mm, 4mm, 5mm 　・Size: 300mm x 300mm, 500mm x 500mm In addition to general-purpose products listed above, we can also provide silicone rubber sheets with special specifications such as conductivity, flame retardance, heat resistance, heat dissipation, and high tear resistance. Please contact us for details, thicknesses, and sizes other than the above. *For details and inquiries about thicknesses and sizes not listed above, please contact us.

• Rubber

The ultra-transparent silicone rubber has a transmittance of 95%, which is as transparent as glass or acrylic resin. It is available in thicknesses from 100 μ as the best buffer protection film for preventing scratches on LCD screens, operating touch panels, and other screens. 【Features】 　・Transparency is as good as glass with 95% transmittance. 　・Flexible and unbreakable. 【Applications】 　・Protective film (scratch protection for LCD screens and buffer protection for touch panels and 　 other screen operations) 　・Various parts for LED's 　・Substitute material for glass and acrylic 　・Materials for interiors, toys, and accessories 　・Materials for special lenses, etc. *For more details, please contact us.

• Rubber

This product consists of glass fiber placed between silicone sheets. *For more details, please contact us.*

• Rubber

Silicone is functional material used in a wide range of industries because it has excellent heat resistance, weather resistance, and electrical properties, and can be used in a wide variety of product forms such as rubber and resin. We have some of Momentive's silicone products in stock which we can supply in a very short period of time. 【Features】 ・Excellent scientific and thermal stability, weather resistance, and electrical insulation properties. ・Mold releasability ・Non-adhesive addition ・Defoaming property, etc 【Applications】 ・Room temperature curing type silicone rubber (RTV) is used as adhesives, potting agents, sealants, etc. *For more information, please contact us or download our catalog.

• Rubber

We provide one-stop service from the machining of precision jigs and parts, to surface machining and cleaning to improve quality, reduce cost, and shorten the delivery time of parts for our customer's facilities. 【Features】 ・We have introduced state-of-the-art equipment from design to machining and inspection. ・We can deal with special needs by installing an angle head on a 5-axis multitasking machine. ・High-precision automation from design to machining is achieved with programming to ensure high quality. 【Applications and Examples of Achievements】 ・Metal materials: Stainless steel, Titanium, Molybdenum, Invar, Aluminum, Brass, Ccpper ・Resin materials: Teflon, PVC, Acrylic, PP, PRS, PEEK ・Surface processing: Various surface treatments such as plating, anodizing, painting, coating, electropolishing, and ultrasonic cleaning *For more details, please contact us or download our catalog to view.

• Processing Contract

In addition to the general properties of carbon materials such as chemical resistance, corrosion resistance, heat resistance, and electrical conductivity, glass-like carbon has the characteristics of gas and liquid impermeability, isotropy, acid resistance, and no dust generation. Because of these excellent characteristics, glass-like carbon is mainly used as a component in a semiconductor manufacturing system. 【Common Characteristics of Glass-like Carbon】 ・Chemical resistance, corrosion resistance, heat resistance, electrical conductivity, and dust-free ・Impermeability to gases and liquids ・High purity (high purity is possible by a special treatment in the manufacturing process) ・High heat resistance, high X-ray permeability 【Characteristics of Glass-like Carbon Beads】 ・Spherical carbon material with a smooth surface, which can be used as filler or porous material for ceramics, etc. ・Low thermal expansion and high thermal shock resistance. ・Dense isotropic structure without pores ・Central grain size 100μm, 200μm *For more details, please contact us or download the catalog.

• Other polymer materials

Carbon adhesives are high-strength, heat-resistant adhesives developed for carbon materials (graphite materials, C/C composites, etc.). By carbonizing the adhesive itself, it is possible to bond carbon materials without impairing their excellent properties. 【Main Applications】 ・Adhesion of graphite jigs ・Adhesion of seed crystals for SiC wafer growth ・Bonding graphite and C/C composites in a high-temperature vacuum and inert gas atmosphere. *For more details, please contact us or download the catalog.

• Other polymer materials

【Features】 ・Can be used up to a maximum operating temperature of 1800 degrees. *approximately. 500-1800 degrees C. ・Long-life and repeatable use. ・Easy to install and remove. ・Easy to control temperature and quick response, so that a specific part of the furnace can be heated evenly. ・Can be designed to meet the specifications of the customer's furnace. *We have a proven track record with semiconductor and optical manufacturers. * For more details, please contact us.

• Silicon Heater

This product is used as a sensor for temperature control and temperature measurement in heat treatment processes of high-temperature furnaces. 【Features】 ・We can manufacture new thermocouples as well as recast thermocouples as needed. ・We manufacture in a dedicated clean room. ・We achieve high precision. 　We use wires (high-purity materials) carefully selected, conducting all temperature tests, and ship them in special packing boxes. ・We accurately measure the temperature inside the high-temperature furnace. ・Our products are installed in a state-of-the-art system. ・Calibration and traceability certificates can be issued. 　We also perform temperature calibration to confirm accuracy based on ISO control standards and issue traceability and calibration certificates. *For more details, please contact us.

• Other semiconductor manufacturing equipment

【Features】 ■Energy saving 　Warms internal fluids and powders, and can be expected to reduce the power consumption of extra electricity and air conditioning equipment. ■Safety 　Protects workers from burns and collision injuries by covering hot areas. ■Custom-made 　Can be made in quantities as minimum as one piece. We can make products from 250-1000 degrees C using materials suited for the application. ■Easily detachable 　Hook and loop tape, belts, and strings (to cover high-temperature parts) make it easy to perform periodic inspections, repairs, and replacements. *For more details, please download the PDF or feel free to contact us.*

• Other safety and hygiene products
• Glass
• Other factory equipment and parts

Ceramic Fiber is an inorganic fiber composed mainly of alumina and silica. 【Features】 ・Lightweight and low heat storage properties. ・Resistant to rapid heating and cooling. ・Excellent heat resistance (up to 1800 degrees C), heat insulation, and sound absorption. ・Stable chemical properties. ・Easy to cut and process. ・Can be used as a thermal insulation cover by covering it with a heat-resistant cloth. 【Recommended for the Following Applications!】 ■The temperature inside the furnace rises slowly and it takes time to start up the furnace. ■The site conducts melting and heat treatment, but energy efficiency is poor and something must be done. *For more details, please contact us directly.

• Ceramics

Siliglas is a heat-resistant and heat-insulating material woven with high-purity, high-silicate glass fiber with a silica (SiO2) content of 96% or higher. 【Features】 ・No asbestos or refractory ceramic fiber (RCF) ・Heat resistance to continuous operation at 1000 degrees C for a long period of time. ・The flexibility of thermal shock resistance is kept against rapid cooling and heating. ・Excellent abrasion resistance and electrical insulation properties ・Excellent workability (small heating shrinkage) *We handle materials as an agent of Nippon Muki Co., Ltd. We also offer processing and sewing services according to the application. *For more details, please contact us or download the catalog to view.

• Other polymer materials

Carriers used as wafer holders in the lapping and polishing process of silicon wafer manufacturing can be produced using various metals (SUS, SK) and resins.. 【Features】 ■Can be produced using various metals (SUS, SK) and resins. ■Scratch prevention on the interior of the work holder ・Resin injection molding is utilized to prevent scratches on the interior of the work holder. ■Providing higher quality products ・We offer higher quality products by proposing specifications based on our many years of experience and by proposing products that meet customers' needs. ■High quality and stable cost ・We can provide high quality, stable cost, quick delivery, and small lot quantity (trial production) due to domestic manufacturing *For more details, please contact us.

• Other semiconductor manufacturing equipment

We are handling oxygen-free copper and phosphorus-deoxidized copper which contain more than 99.9% copper. Both types of copper have excellent electrical and heat conductivity and workability such as rolling, spreading, bending and corrosion resistance, and weather resistance. 【Features of Copper】 ・Excellent heat conductivity ・Good workability ・It has been confirmed to have bacteria resistant properties. ・Round and irregularly shaped tubes can be manufactured as products. ・Tubes can be drawn or shaped to the required size according to the customer's application. 【Main Applications】 ・Air conditioning and heat transfer tubes for refrigerator and refrigerant piping ・Copper tubes for piping and others: Copper tubes for propane, tap water, gas water heaters, circulation pipes for bath heater, etc. ・Special order products: Copper-coated steel rods (electrolytic beams), various types of irregularly shaped tubes, copper tube terminals, sleeves, etc. ・Water supply and drainage pipes (sanitary metal pottery tools)

• Piping Materials

Copper and zinc alloy tube, 65% copper and 35% zinc, is the most common proportion. It has excellent extensibility, bendability, drawability, and plating properties. We also produce alloy tubes made from 70% copper and 30% zinc, and alloy tubes made from 85-90% copper and10-15% of zinc for special applications. ◆Faucet spouts and drainpipes. (we have delivery records for major manufacturers) 【Main Applications】 ・Water supply and drainage pipes (sanitary pottery attached metal tools) ・Electrical components (solenoid actuators for automobiles, etc.) ・Air supply pipes and other conveying machinery and equipment ・Various parts for daily sundries and stationery printing ・Building and Decoration Fixtures (door handles, arm rails, etc.) *For more details, please contact us.

• tube

This material was developed by adding 0.2~2.5% lead to brass pipe to give it free-cutting properties. It boasts excellent free-cutting properties, but its extensibility, bendability, and drawability are slightly inferior. 【Features of Copper】 ・Excellent heat conductivity ・Good workability ・It has been confirmed to have antibacterial properties. ・Round and irregularly shaped tubes can be manufactured as products. ・Tubes can be expanded to the required size according to the customer's application. 【Main Applications】 ・Various parts for the precision industry (watches, measuring instruments, etc.) ・Parts for optical instruments (microscopes, telescopes, cameras, etc.) ・Daily sundries (stationery such as ballpoint pen, etc.) *For more details, please contact us.

• tube

We manufacture various types of special copper alloy tubes with higher strength, corrosion resistance, and polishability than that of copper and brass tubes. Our special copper alloy tubes include red copper tubes with high dezincification resistance and corrosion-resistant brass tubes with high corrosion resistance and strength. ♦We have a proven track record in the production of wind instruments for major musical instrument manufacturers. 【Main Applications】 ・Nickel silver tube: Musical instruments, chemical industry machinery ・Corrosion resistant brass tubes: Heat exchangers, condensate tubes ・Dezincification-resistant brass tubes: Water supply and drainage pipes, hot-water supply pipe faucet components, gas, and petroleum machinery ・Red copper tubes: Water supply and drainage pipes, hot-water supply pipes, faucet components *For more details, please contact us.

• tube

In addition to the cleaning and reconditioning technologies, that Tomco boasts a long track record of, we have achieved complete in-house production of thermal spraying, a surface modification technology in which powder is melted and coated on the surface of materials. 【Features】 ■ Achieving high densification, high insulation properties, wear resistance, and corrosion resistance ・We provide coating technologies that achieve high densification, high insulation properties, wear resistance, and corrosion resistance under thermal spraying conditions optimized for the materials and shapes of jigs and parts. ■High-quality reproduction of parts and jigs ・We provide high-quality reproduction of parts and jigs incorporated in vacuum chambers through our integrated production and management systems, from ultrasonic ultrapure water cleaning in our clean room to decompression drying and vacuum packing. ■We also support ultrapure water cleaning and vacuum packing. ・We support customers in the precision machinery field and other fields to improve their productivity through precision cleaning that removes invisible dirt and residual materials. ■Supporting productivity improvement ・We provide highly reproducible technical capabilities to always deliver products that are equivalent to evaluated products. *For more details, please contact us or download and view our catalog.

• Other cleaning machines

DLC (diamond-like carbon) coating deposits a low-friction DLC film using plasma ion implantation coating method. 【Features】 ■Capable of handling work with complicated shapes ・By using the work itself as a source of plasma, plasma is formed along the shape of the work and allows gas to flow around and deposit a film on complicated shapes and interiors. ■Excellent lubricity ・Excellent lubricity due to the formation of low coefficient of friction film ■Can deposit on resin and rubber as well as metal and aluminum. ・Low-temperature deposition is possible. ■Can deposit with the flexibility to follow the shape of the base material (even resin is resistant to film peeling). *Please contact us if you have any problems with life reduction due to friction of parts. *We can provide technical explanations and trial production. *We also sell DLC deposition system. * For more details, please contact us or download our catalog for more information.

• stainless

Electronic and industrial devices used in old facilities as well as systems are currently difficult to obtain, and even if they are available, the price is very high!. We can provide a stable supply at low cost by taking care of the device in use, identifying faulty parts, replacing the parts in question, and repairing the device. 【Features】 ■Identification of the faulty parts and replacement of the parts enables us to achieve low cost. Before repairing, we diagnose the failure of the device in advance, identify the faulty parts and the parts to be replaced, then inform you of the repair cost. ■Stable supply For parts that are difficult to obtain, we select equivalent or substitute parts to ensure a stable supply. ■The flow of repair completion Receive the failed device (Please inform us of the symptom of the problem) ↓ Acceptance, inspection, and submission of quotation (Please allow 1 week to 10 days after receiving the device) ↓ The repair will start as soon as we receive your order(Please allow 2 weeks to 2 months for repair completion) Repair time varies depending on the product, so we will inform you of the official delivery date after the failure diagnosis is completed. ↓ After completion of repair and operation check, delivery. * We also provide after-sales support, so please contact us if you experience any issues after delivery. * For more details, please inquire.

• Other electronic parts