Notice of Participation in the 1st High-Performance Materials Week [Nagoya] (Port Messe Nagoya)

A broadband electromagnetic wave absorption sheet that absorbs millimeter waves across a wide frequency range with this one sheet.

This is a sheet-type electromagnetic wave absorber that can be used for noise countermeasures in millimeter-wave radar, millimeter-wave sensing, information communication devices (Beyond 5G), and more. Unlike conventional products that absorb only specific frequencies, this sheet can absorb a wide range of millimeter waves extending to several tens of GHz, allowing it to accommodate multiple devices with different frequencies using just one sheet. The design of the sheet also allows for adjustment of the absorption frequency to the desired band. It is lightweight and flexible, making it possible to process into any shape, and can be attached to various locations by providing an adhesive layer.

• High frequency/microwave parts
• plastic
• Communications

A future film that can serve as an actuator, a sensor, and a power generation element all in one.

Dielectric elastomers are flexible polymer materials that deform under voltage. Our company laminates conductive elastomers with dielectric elastomers, allowing them to be used as is without the need for applying carbon grease. We are exploring a wide range of applications that leverage the deformation characteristics due to electrostatic forces. Furthermore, we are also considering applications for power generation using dielectric elastomers.

• Sensors
• Actuator
• Other energy equipment

Next-generation sheets that enrich the ocean. They create new seaweed beds and contribute to achieving carbon neutrality!

Once rich, the seagrass beds are decreasing year by year due to environmental changes and human impact. Seagrass beds serve as habitats for marine life and also play a role as "blue carbon" by absorbing and sequestering CO₂. Now, the restoration of seagrass beds is urgently needed for both ecosystem conservation and climate change mitigation. To tackle this challenge, we are developing a sheet that enables the easy construction of seagrass beds.

• Other polymer materials

Industry-leading functional anti-fouling film! Used in marine environments, it prevents contamination from marine organisms simply by being applied.

An anti-fouling film for marine organisms is a special film that has properties that make it difficult for marine organisms such as barnacles, crustaceans, mollusks, and algae (fouling organisms) to adhere in the ocean. By applying it to areas where marine fouling organisms are problematic, such as measuring instruments used in the ocean, marine sports equipment, fishing gear, boat bottoms, seawater intake areas, and structures where anti-fouling paint is difficult to apply, it becomes harder for fouling organisms to attach, and any minor adhesion can be easily wiped off, making maintenance easier. Additionally, since it has an adhesive film structure, you can choose between a strong adhesive type suitable for long-term use where peeling would be problematic, or a re-peelable type that can be applied and removed as needed, depending on the application.

• plastic
• Other measurement, recording and measuring instruments
• Water quality testing

We have newly installed a multi-layer extruder in our "Custom Made System," which supports the development and contract processing of customer-specific films, serving as the core of our small test equipment!

The "Custom Made System" supports film development and contract processing tailored to customer specifications, from planning and development to mass production. We have newly installed a multilayer extruder on our small-scale test machine line, which has an effective width of approximately 200mm, capable of handling 2 to 3 layers up to 5 layers. Until now, the development of multilayer films and laminates could only be verified on actual mass production lines during the initial consideration phase, but we expect that the possibilities for new development will greatly expand in the future. *The conventional single-layer extrusion test equipment can still be used as before. Please make use of our "Custom Made System" for the development of high-functionality and high-value-added new films.

• Other optical parts
• Contract manufacturing
• Engineering Plastics

Utilizing the T-die extrusion technology we have developed over many years, we accept everything from development to contract production, even for small lots! Please feel free to consult us about any special resins or soft materials!

Do you have any experience with wanting to form fine shapes on the film surface, wanting to create a special compound resin into a film, having resin pellets but no film grade available, being turned down due to small lot sizes, being able to prototype but not mass-produce, being unable to film due to soft materials or tacky materials, or being unable to laminate in a clean room? If you have any issues with T-die extrusion, please consult us first. From prototyping with a small test machine to production with mass production machines, we will do our utmost to meet your needs! <General Environment> - Small extrusion test equipment with an effective width of approximately 210mm (single-layer to multi-layer, up to 3 types and 5 layers) - Mass production machines for extrusion lamination processing with effective widths from 620mm to a maximum of 2,150mm (multiple units) *Additional equipment: Co-extrusion, sand feed device, double-sided tandem, corona treatment, after corona, frame treatment, detectors, etc. <Clean Room> - Medium mass production machine with an effective width of approximately 650mm (single-layer) - Large mass production machine with an effective width of approximately 1,300mm (multi-layer) - Mass production machines for extrusion lamination processing with effective widths from 800mm to 1,400mm (AC treatment, sand feed device, single-sided tandem)

• Processing Contract
• plastic
• Paper and pulp products

The "International Fermentation and Brewing Food Industry Exhibition" is Japan's only specialized exhibition that brings together ingredients, materials, research equipment, manufacturing facilities, testing equipment, and packaged products related to fermentation and brewing. In 2013, "Washoku" (Japanese cuisine) and in 2024, "Traditional Sake Brewing" were registered as UNESCO Intangible Cultural Heritage, increasing interest in Japan's fermentation and brewing industry. This exhibition will be grandly held at Tokyo Big Sight as a platform to promote the development of the industry and the richness of food culture to the world, and to spread Japan's proud fermented and brewed foods.

Gathering the wisdom of the DOWA Group towards the realization of a decarbonized society! We would like to introduce the initiatives of each DOWA Group company. We look forward to seeing you at our booth!

Heat pipes are passive heat transfer devices that utilize latent heat of vaporization in a two-phase system and do not require driving energy. Heat pipes have very high thermal conductance, with their equivalent thermal conductivity being several hundred times higher than that of a copper rod of the same size. The primary application of heat pipes is in the cooling of computers and electronic products. Recently, AI servers and data centers have gained attention; for example, nVidia's GPUs can reach heat generation of up to 1 kW, employing water-cooled cold plates and 3D vapor chambers. Air cooling is limited to 800 W, while nVidia's Ruben GPU can reach 2 kW, utilizing water-cooled microchannel cold plates, among others. In response to further increases in heat generation, vapor chamber composite cold plates, two-phase pump loop cooling, and impingement cooling have been developed. Additionally, recent cooling cases for batteries, motors, and IGBTs in electric vehicles will be discussed.

In the past, thermal design primarily focused on complex heat transfer through convection and radiation to the atmosphere. However, with the increase in surface-mounted components and power density, the heat dissipation pathways are gradually shifting to thermal conduction through substrates and enclosures. One of the key heat dissipation devices to promote heat transfer in limited spaces is TIM (Thermal Interface Material). A wide variety of TIMs have been developed in the market, and in recent years, key areas where TIMs are widely used include AI data centers and automotive equipment centered around electric vehicles (EVs). In this course, we will first explain the overview of heat dissipation design in AI data centers and automotive equipment, and in the latter half, we will provide a detailed explanation of the thermal and mechanical properties of TIMs in these two fields, as well as important considerations when selecting TIMs.

An explanation of the economic viability, technology, projects, and industry trends and outlook for thermal energy storage and thermoelectric batteries, which are attracting attention for their use in unused heat utilization, energy storage, and renewable energy load leveling. Part 1 Technological and business outlook for thermal energy storage and thermoelectric batteries both domestically and internationally Part 2 Fundamentals, components, technology, and application outlook of thermophotovoltaic (TPV) power generation systems