Awarded the "Minister of Economy, Trade and Industry Award for the 2024 Industrial Standardization Project"! [JIS standardization of the thermal diffusivity measurement method for graphite sheets]

Introducing devices for measuring the thermal diffusivity of sheet-like and plate-like materials, as well as thermal evaluation devices for fiber orientation distribution!

Introducing Bethel's thermal property measurement devices. The "Thermo Wave Analyzer TA33/35" is a measurement device for the thermal diffusivity of sheet and plate materials, capable of measuring the thermal diffusivity of functional materials. The "Thermal Microscope TM" has been commercialized through joint development with the National Institute of Advanced Industrial Science and Technology's Measurement Standards Division, allowing for measurements in micro-regions and thin films. Additionally, we offer the "Thermal Imaging Scope TSI," which visualizes thermal conduction paths using infrared cameras and lasers, as well as the "Fiber Orientation Evaluation System TEFOD." 【Features of the Thermo Wave Analyzer TA33/35】 ■ High freedom of sample shape ■ Dynamic range from organic films to diamonds ■ Anisotropy evaluation through measurements in horizontal and vertical directions ■ Evaluation of defects and irregularities through distribution measurements *For more details, please refer to the PDF document or feel free to contact us.

• Other measurement, recording and measuring instruments

The anisotropy of the graphite sheet (in-plane direction and thickness direction) has become measurable!

○ Anisotropy of graphite sheets (in-plane direction and thickness direction) ○ Thermal diffusivity ○ Thermal conductivity

• Optical microscope

Non-contact measurement of thermal diffusivity using a laser. Measurement of resin-based materials is also possible.

The ThermoWave Analyzer TA measures thermal diffusivity using a non-contact method with a laser. Since the thermal conductivity of composite materials made of fillers and resins varies significantly with the mixing ratio, measuring thermal diffusivity is essential. Measurement of resin-based materials is also possible. Please contact us for more details.

• Logic Analyzer

It will help in the development of high thermal conductivity materials! 【Cooling of semiconductor devices / heat sinks】

■Measurement of thermal properties of carbon nanotube (CNT) applied materials ■Surface treatment is unnecessary (in the case of carbon-based materials) ■Essential for the development of high thermal conductivity materials! ■Non-contact measurement

• Composite Materials

Thermal conductivity distribution measurement and the anisotropy of thermal diffusivity in each part can be evaluated.

Here is an example of evaluating thin polyimide sheets. Polyimide sheets are resin materials primarily used as insulating substrates and insulating layers in electronic circuits. This time, we measured the thermal diffusivity in the thickness direction using a ThermoWave Analyzer TA on a sheet with a thickness of 7.5 μm. Even with the same polyimide sheet, there are significant thermal differences depending on the thickness. When comparing examples of 25 μm and 7.5 μm using the measure of thermal diffusion time, there is nearly a tenfold difference. The thinner sheet diffuses heat in one-tenth the time. For in-plane measurements, it is relatively easy to achieve time resolution since the distance between the heating point and the detection point can be established. However, for thickness direction measurements, it is necessary to detect rapid temperature changes, which affects the basic performance of the equipment. Traditional measurement methods make the measurement itself difficult. Additionally, at a thickness of 7.5 μm, the thermal effects of surface blackening treatment cannot be ignored, so we have devised methods to minimize these effects during sample preparation and measurement. The measurement results are as follows: Thermal diffusivity in the thickness direction: 0.103 × 10^-6 m²s^-1. This value is approximately 30% lower compared to the 25 μm thick polyimide.

• Other physicochemical equipment

Non-contact measurement of thermal diffusivity using a laser. Measurement of materials with high thermal conductivity is possible.

The ThermoWave Analyzer TA3 measures thermal diffusivity using a non-contact method with a laser. It is capable of measuring materials with high thermal conductivity. Measurements can be taken without worrying about the shape. For more details, please contact us.

• Logic Analyzer

Bulk, thin film, micro areas, plate-shaped, sheet-shaped, almost all materials can be accommodated. Please consult us once.

Supports various thermal conductivity measurement methods such as steady-state method, periodic heating method, and thermoreflectance method. Compatible with plate-shaped, sheet-shaped, soft samples, fibrous materials, and various shapes. Please consult us even for samples that have been rejected by other companies.

• Contract measurement

Thermal evaluation of gallium nitride, known for blue LEDs and semiconductor materials!!

■Evaluation of particles with a micro size (3μm and above) ■Evaluation of thermal conductivity of thin films ■Measurement possible at submicron order

• Microscope

Thermal conductivity distribution measurement and the anisotropy of thermal diffusivity in each part can be evaluated.

In recent years, the miniaturization and high output of electronic devices have rapidly advanced, and as a result, thermal management (heat dissipation) has become a very important issue. Traditionally, heat dissipation has been maintained by using metals, but in recent years, it has begun to be replaced by "high thermal conductivity resins." High thermal conductivity resins are "lightweight" and have "moldability" compared to traditional metals, are "corrosion-resistant," and above all, have the advantage of being "low-cost." However, there is also the disadvantage of low thermal conductivity, and many material manufacturers are actively developing solutions to address this issue. It is expected that "high thermal conductivity resins" will become mainstream in the future. On the thermal properties blog, we introduce examples of thermal conductivity measurements of "high thermal conductivity resins." http://blog.thermal-measurement.info/archives/cat_50051425.html

• Other physicochemical equipment

Understanding the mechanism of heat transfer and effectively dissipating heat is important! Here we introduce various methods for measuring thermal properties.

Due to factors such as "miniaturization = fanless design" and "widespread use of power devices = increased heat generation," thermal issues have become important. Thermal conductivity measurement can be broadly classified into two categories: "steady-state method" and "transient method." The steady-state method provides direct thermal conductivity values and requires relatively large samples. The transient method can measure thermal diffusivity and thermal effusivity, and it is possible to measure with relatively small samples. We provide further detailed explanations, so please take a look at the PDF download below. 【Characteristics of the "Steady-State Method" and "Transient Method"】 ■ Steady-State Method - Direct thermal conductivity can be obtained - Requires relatively large samples ■ Transient Method - Can measure thermal diffusivity and thermal effusivity - Can measure with relatively small samples - Requires specific heat capacity and density *For more details, please refer to the PDF document or feel free to contact us.

• Other measurement, recording and measuring instruments

Do you have any concerns or requests regarding wired bed exit sensors? × Tangling and tripping of wired cables × Cable disconnection or damage × Worry about forgetting to turn on the switch after temporarily stopping the sensor. × Want to be notified of bed exit even from a location away from the nurse call outlet. Such concerns can be resolved simply by connecting to a wireless set linked to the nurse call system! Our nurse call linked wireless set allows you to connect bed exit sensors like "Ugo-kun," "Foldable Thin Matta-kun," "Ayumi-chan," and "Just Place Pole-kun" to transmitters and receivers, reducing wiring around the bed, alleviating concerns about tripping and falling due to cables, and contributing to a tidier work environment. Furthermore, it enables the use of bed exit sensors even from locations away from the nurse call outlet, allowing for more flexible equipment placement.

The "Hotron Non-Contact Switch" allows you to open and close doors without directly touching door knobs or switches, making it hygienic! You can choose from two types: the "Hand Wave Sensor," which only requires you to wave your hand, and the "Foot Switch," which only requires you to place your foot in front of it. It reduces the risk of virus and bacteria transmission in places where hygiene is a concern, such as food factories, restaurants, hospitals, and nursing facilities. 【Features】 ○ Reduces the risk of virus transmission by allowing door operation without contact ○ A wide variety of options to choose from based on application and location ○ Ideal for places where hygiene is a priority, such as food factories and medical facilities ○ Prevents unnecessary detection due to the switch mechanism 【Product Lineup】 ■ Hand Wave Sensor Series ○ Exposed waterproof type, front, down, and side-facing types "PF-R5" ○ Exposed type, front-facing type "PF-R1" ○ Embedded type, front-facing type "PF-U2" ○ Exposed type, downward wide type "PF-R4" ■ Foot Switch Series ○ Slim type with wide opening, vertical beam type "PF-01S" ○ Slim type with wide opening, horizontal beam type "PF-03S" ○ Standard type, horizontal beam type "PF-05" ◎ For more details, please download the catalog or contact us.

Various greases are used for the lubrication of molds and machine parts, but in high-temperature environments, the performance of standard lithium greases significantly decreases, leading to issues such as seizure and galling. So, how should one choose "high-temperature greases"? First, the heat resistance temperature should be noted. Typical lithium-based greases have a limit of around 200°C, but in mold environments, conditions can reach 400°C to 800°C. In such cases, high-temperature greases that use heat-resistant additives or special base oils are essential. Second, oxidation stability is also important. When the oil oxidizes due to rising temperatures, the lubricating film is lost, and component wear progresses rapidly. Third, the initial break-in performance should not be overlooked. The ability to form a smooth film during startup at high temperatures can greatly affect the lifespan. For example, the "Golden Grease Series" can handle mold environments up to 800°C due to its hybrid design of inorganic and organic components. It allows for lubrication, release, and rust prevention all at once, leading to more efficient mold maintenance. In workplaces struggling with high-temperature environments, choosing such specialized greases can achieve both increased production efficiency and cost reduction.

The 2025 Osaka-Kansai Expo will feature the theme "Designing a Future Society Where Life Shines," showcasing numerous cutting-edge visual productions and experiential exhibits. Central to creating immersive video experiences that strongly engage visitors is projector technology. Supporting this performance at its core are optical thin films (optical filters) applied to lenses and optical components. As brightness and resolution increase, the quality of optical thin films directly impacts the clarity, color reproduction, and durability of the images. The "amazingness" of the video technology at this Kansai Expo has evolved beyond merely providing visual information to becoming a means of reconstructing the space itself. In particular, in the field known as "immersive video," stimulating multiple senses such as sight, hearing, and touch allows viewers to be drawn into the narrative, blurring the boundaries between reality and the virtual experience. 【1】The Power of Video Supporting Immersive Experiences 【2】What is a Three-Sided Screen? - The Key to Video Production Supported by Projectors 【3】What are the Representative Pavilions Where You Can Actually See a Three-Sided Screen at the Expo? 【4】What Optical Thin Films are Necessary for Projectors to Achieve a Three-Sided Screen? 【5】What is the Future Where Three-Sided Screens and Projectors are Introduced into Homes?

NTT TechnoCross Corporation (Headquarters: Minato-ku, Tokyo, President: Atsuko Oka, hereinafter referred to as "NTT TechnoCross") will start providing a new version of its health management system "HM-neo," which includes a meeting record summarization feature powered by generative AI, from April 1, 2025 (scheduled).