鳴海製陶 List of Products and Services

Reduces the occurrence of cracks due to thermal expansion differences at the joints when using quartz glass as a cover glass. The yield during sealing is improved. The airtightness of the package is also enhanced due to material properties and metallization processing. The through-via structure improves heat dissipation, which is expected to extend the lifespan of the device. 【Features】 ■ The expansion coefficient of the package is about 1/4 that of aluminum nitride, resulting in good bonding compatibility with quartz glass and improved reliability. ■ The porosity is small, comparable to ceramics, and the airtightness of the package is enhanced by metallized sealing. ■ The reduction in the difference in expansion coefficients improves the yield during the production process (during sealing). 【Application Examples】 ■ Glass-ceramic package for sealing deep ultraviolet (UVC) LEDs ■ Glass-ceramic package for sealing deep ultraviolet (UVC) sensors

• Ceramics
• LED Module
• Sensors

We also accept the production of products not listed in the catalog. By applying the frit technology developed through ceramic and glass painting, as well as functional paste development, we can provide proposals tailored to your needs. We also have a track record of supplying major manufacturers. 【Features】 ■ Elimination of harmful substances in glass frit ■ Small lot production of glass frit ■ Improvement of functionality in glass frit ■ Customization of glass frit ■ Proposals tailored to your needs ■ Customization of particle size, etc. 【Examples of Applications】 ■ For sintering (grinding stones, glass bonds) ■ For electronic materials (sealing, adhesion, conductive paste) ■ Elimination of harmful substances in various types of glass, etc.

• Grindstone
• Ceramics
• Other abrasives

We also accept the production of products not listed in the catalog. By applying frit technology developed through ceramic and glass painting, as well as functional paste development, we can offer proposals tailored to your needs. We have a track record of supplying to major manufacturers. 【Features】 ■ Fritting of high-viscosity, high-melting-point glass that is difficult to handle ■ Fritting of colored glass that is undesirable to handle with existing equipment ■ Making currently used glass free of harmful substances ■ Flexibility for small quantities ■ Customizing glass ■ Proposals tailored to needs ■ Customization of particle size, etc. 【Examples of Applications】 ■ For sintering (grinding wheels, glass bonds) ■ For electronic materials (sealing, adhesion, conductive paste) ■ Making various glasses free of harmful substances, etc.

• Grindstone
• Ceramics
• Other abrasives

We have prepared a fine powder grade made from crushed low-expansion crystallized glass, as well as a powder that transforms into low-expansion crystallized glass powder upon heating. Utilizing its properties, it is used in various applications such as low-expansion fillers, abrasives/abrasive grains, and resin additives. 【Features】 ■ Standard products are granulated ■ Customizable particle size ■ Used in various applications leveraging its properties 【Properties】 <N-0> ■ Coefficient of thermal expansion: -4×10^-7/K ■ Density: 2.5g/cm² ■ Thermal conductivity: 1.6W/mK ■ Vickers hardness: 700Hv(0.2) <N-11> ■ Coefficient of thermal expansion: 10×10^-7/K ■ Density: 2.5g/cm² ■ Thermal conductivity: 1.6W/mK ■ Vickers hardness: 800Hv(0.2) 【Applications】 ■ Low-expansion fillers ■ Abrasives/abrasive grains ■ Glass flux additives ■ Resin additives *For more details, please refer to the PDF document or feel free to contact us.

• Grindstone
• Ceramics
• Other abrasives

This document introduces temperature simulations for crystallized glass transparent heaters by size. It includes information on "electrode width size," "electrode gap direction size," and "simulation conditions." Please take a moment to read it. [Contents] ■ Guidelines for the size of crystallized glass transparent heaters and their achievable temperatures (100V) *For more details, please refer to the PDF document or feel free to contact us.

• Glass
• Other air conditioning equipment

At Narumi Seito Co., Ltd., we utilize screen printing technology and thin film formation technology to provide customized products by freely combining substrates and heating elements, such as transparent heaters and 3D transfer heaters. Our substrates include "ultra-heat-resistant crystallized glass," various "ceramics," "quartz glass, various types of glass," and "PET, (PP)." We also offer "thick film type" and "thin film type" heating elements. Please feel free to contact us when you need assistance. [Substrates] ■ Ultra-heat-resistant crystallized glass ■ Various ceramics ■ Quartz glass, various types of glass ■ PET, (PP) *For more details, please refer to the PDF document or feel free to contact us.

• Glass
• Other air conditioning equipment

"Super Heat-Resistant and Heat-Reflective Glass" is a product that features a special heat-reflective coating on super heat-resistant crystallized glass. It is suitable for use in industrial furnaces, observation windows of experimental furnaces, and the front glass of commercial ovens, allowing for direct observation of the interior conditions due to its excellent heat resistance and visible light transmittance. Additionally, it is effective in maintaining the temperature inside the furnace as it does not easily transmit heat. 【Features】 ■ Excellent heat resistance ■ Visible light transmittance ■ Allows direct observation of the interior conditions ■ Effective in maintaining the temperature inside the furnace *For more details, please refer to the PDF document or feel free to contact us.

• Glass

We develop heaters that combine various substrates and heating elements according to your application and desired basic specifications, using screen printing technology and thin film formation technology. *Please refer to the list below for the substrates and heating elements that can be combined. 　　　【Substrate】　　　　　【Substrate Shape】　　　　　【Heating Element】 ■Ultra-heat-resistant crystallized glass　　■Plate, sheet　　■Thick film (screen printing) ■Various ceramics　　　　■Cylindrical　　　　　■Thin film (screen printing) ■Various glasses　　　　　　■3D shape　　　■Thin film (CVD) ■Resin sheet ■Micro and ultra-thin substrates 【Application Examples】 ■Ultra-heat-resistant crystallized glass + thick film printed heating element ... Far infrared heater panel ■Transparent type ultra-heat-resistant crystallized glass + FTO thin film heating element ... Transparent heater ■AlN thin substrate + thin film heating element ... Thin heater ■Resin sheet + heating element ... 3D transfer heater ■Curved processed substrate + thin film heating element ... Curved surface heating element *For more details, please refer to the PDF document or feel free to contact us.

• Glass
• Other air conditioning equipment

We would like to introduce our "Crystallized Glass Desk Mat and Countertop." It does not dissolve in organic solvents, and any oil-based paint that adheres can be completely removed. It also has excellent acid and alkali resistance. Additionally, it has outstanding resistance to thermal shock, so there is no worry of breaking when placing hot items directly on it, and it will not burn even if molten solder or a soldering iron comes into contact with it. 【Features】 ■ Easy to clean ■ Hard and scratch-resistant ■ Heat-resistant *For more details, please refer to the PDF document or feel free to contact us.

• Other laboratory equipment and containers
• Office supplies and stationery
• Office furniture

We would like to introduce our "Crystallized Glass Transparent Heater." A transparent conductive film is formed on heat-resistant crystallized glass. Since it is transparent, you can see the condition of the heated object through the heater. The maximum size is 1200×900mm. For sizes larger than this, please consult us. 【Features】 ■ Transparent conductive film (FTO) formed on crystallized glass ■ Rapid heating up to 350℃ ■ Far infrared rays are emitted from the crystallized glass (more emitted from the non-film forming surface) ■ Transparent, allowing visibility of the heated object through the heater ■ Maximum size 1200×900mm (for larger sizes, please consult) *For more details, please refer to the PDF document or feel free to contact us.

• Food Processing Equipment
• Industrial Furnace
• Heating device

Far infrared rays have the property of being absorbed by the body and warming it from within, and they are utilized in many heating devices. When heat is applied to a plate of ultra-heat-resistant crystallized glass, it generates wavelengths of far infrared rays during the heat dissipation process. We have developed a heater panel that applies this characteristic. We will design the circuit according to the required wattage and area. We also offer heating simulation services. Please feel free to contact us when you need assistance. 【Features】 ■ Uses crystallized glass panels with good emissivity ■ Emits infrared rays at wavelengths that are easily absorbed by the body ■ Suitable for drying food and other items ■ Directly forms the heating element on the crystallized glass for better heat transfer (energy-saving) ■ Circuit design according to the required wattage and area * For more details, please refer to the PDF document or feel free to contact us.

• Glass
• Other air conditioning equipment

The "TOP PLATE" is a cooking plate product that features various color prints applied using Narumi's special printing technology on transparent crystallized glass "N-0" and white crystallized glass "N-11." In particular, the establishment of decoration technology on crystallized glass "N-0" has made it widely compatible as a top plate for cooking equipment using radiant heaters and halogen heaters, allowing the crystallized glass "N-0" to transmit heat and light effectively. By enabling direct printing, it can accommodate products of any size. Additionally, the transfer printing technique allows for even more multicolored printing. 【Features】 ■ Special printing technology ■ Heat resistant ■ Direct printing and transfer printing techniques ■ Compliant with high-level UL standards (USA) *For more details, please refer to the PDF materials or feel free to contact us.

• Glass
• Other food machinery

"Super heat-resistant crystallized glass" is glass that has been heat-treated with a special composition to precipitate extremely small microcrystals within the glass, resulting in minimal thermal expansion. It excels in high-frequency characteristics and electrical insulation, and allows for the printing and baking of electrical circuits using conductive paints (Ag). It also has good electromagnetic wave transparency. Additionally, it has excellent acid and alkali resistance, with no leaching of harmful components (Pb and As) according to food sanitation law tests. 【Features】 ■ Excellent heat shock resistance ■ High infrared transmission rate ■ High mechanical strength ■ Superior electrical properties ■ Strong chemical resistance ■ Smooth surface *For more details, please refer to the PDF document or feel free to contact us.

• Glass
• Ceramics

The predecessor of Narumi Seito, the Imperial Porcelain Company, was established in 1911 with the aim of manufacturing porcelain for domestic and overseas export. It started as Narumi Seito in 1950. Since then, in addition to porcelain manufacturing, the company successfully developed ceramics for the electronics industry in 1958, followed by the creation of "Cookmaster," a super heat-resistant crystallized glass tableware in 1962, and the development of "Narumi Bone China" in 1965. These developments have led to the birth of new products that support our company. Currently, while focusing on the origin of "food," we are aiming to become a "lifestyle space creation company" with a broader perspective, taking on further new challenges. 【Business Activities】 ■ Household tableware, commercial tableware, heat-resistant glass, glass products ■ Glass for top plates ■ Clean heater-related products ■ Interior-related products *For more details, please refer to the PDF materials or feel free to contact us.

• Other energy equipment
• Glass
• Ceramics