KELLER will exhibit at the International Space Business Expo SPEXA! July 30 to August 1, 2025, at Tokyo Big Sight, South Hall 3, S4-2.

Small pressure sensor with welded structure covering from 0 to 10 kPa up to 0 to 100 MPa!

The welded structure small pressure sensor 23SY/25Y is designed to meet the advanced and diverse requirements of industrial applications, including pressure range, pressure connection, output signal, and electrical connection (25Y features a flush diaphragm structure). The modular concept allows for high flexibility in specifications and enables quick response times. A temperature sensor is integrated into the circuit, correcting errors caused by temperature changes and contributing to improved overall accuracy. We can also offer intrinsically safe explosion-proof types 23SYEi and 25YEi. 【Features】 - Wide temperature compensation: ± 0.7 %FS @ -10 ~ 80℃ - Minimum pressure range starting from 10 kPa - Excellent long-term stability - Robust SUS housing - Option: Intrinsically safe explosion-proof type (23SY-Ei) 【Technology】 - Piezo-resistive pressure sensor - Welded structure without internal seals - Analog output: 4 ~ 20 mA, 0 ~ 5 V, 0 ~ 10 V, etc.

• Pressure

Ultra-compact pressure sensor with a minimum diameter of 17mm, covering from 0 to 200kPa up to 0 to 100MPa!

The pressure sensor series 21Y features a welded structure that does not use internal seals. It has an insulation voltage of 300VDC, making it less susceptible to disturbances. A temperature sensor is integrated into the circuit to correct output errors caused by temperature changes, resulting in improved overall accuracy and TEB. 【Features】 • Wide range of temperature compensation • Ultra-compact, ideal for applications with limited installation space • Robust SUS housing • Excellent long-term stability 【Technology】 • Piezo-resistive pressure sensor • Welded structure without internal seals • Compact with analog output: 4–20mA, 0–10V, etc.

• Pressure

High-precision pressure sensor with RS485 digital output. Atmospheric pressure range (800 to 1200 hPa) is also available!

The pressure sensor 33X achieves an extremely high accuracy of 0.05% full scale (FS) in the temperature range of 10 to 40°C through a mathematical correction method. An additional option for high precision of 0.01% FS is also available. In addition to a digital RS485 interface, analog current or voltage outputs can be obtained. 【Features】 - Accuracy of ±0.05% FS in the temperature range of 10 to 40°C - Standard dual outputs of digital RS485 and analog output - Analog output can be range-adjusted via digital RS485 - Available in barometric range type (800–1200 hPa) and differential pressure range type (from 0–30 kPa to 0–3 MPa) - Temperature range of -20 to 125°C (optional -40°C also available) - Excellent long-term stability 【Technology】 - Piezo-resistive pressure sensor - Correction technology using a mathematical model to produce accurate pressure values

• Pressure

Ideal for measuring pulsations and unsteady behavior with a bandwidth of 50 kHz, temperature-resistant up to 180°C, built-in amplifier (0-10V output) high-precision pressure sensor.

The ultra-high-speed pressure sensor M5HB can measure not only static pressure but also pressure changes within a bandwidth of 0 to 50 kHz. This is achieved by the digital circuit continuously adjusting the analog signal in real-time, with an output of 0 to 10V. The compact sensor head with M5 fine thread can be used at temperatures up to 180°C. It has a pressure resistance of up to five times the measurement range and is an excellent model for vibration resistance. 【Features】 - Temperature resistance of the sensor head: 180°C - Output is an analog signal of 0 to 10V (with built-in amplifier) - Wide temperature compensation range: -20 to 125°C or -40 to 180°C - Bandwidth of 50kHz, ideal for measuring pulsations and unsteady behavior - Resistant to impacts and vibrations - Compact design, pressure connection is M5×0.5 fine thread

• Pressure

±0.05% accuracy / Digital pressure gauge with logging function, explosion-proof type available

The high-precision digital pressure gauge LEO Record can record pressure and temperature for extended periods thanks to its memory function. The data logger can be connected to a computer via an RS485 interface for reading the recorded data. The current pressure value can be displayed in multiple pressure units. It is powered by a 3.6V lithium battery. An intrinsically safe explosion-proof type is also available. 【Features】 - Can record pressure and temperature for long periods - High precision (±0.05%FS @ 20–25 °C) - Ultra-low power consumption, long battery life - Can display in various pressure units (bar, mbar, hPa, kPa, MPa, PSI, kg/cm2, cmH2O, mH2O, etc.) - Zero point calibration via button - Intrinsically safe explosion-proof type available

• Pressure

We will be exhibiting at the joint company information session hosted by Mynavi on the following schedule. We will clearly explain the four core businesses of Takaya. If you are interested in "monozukuri" (manufacturing), please come to our booth!

At this exhibition, we will introduce our materials equipped with new functions and values that contribute to solving our customers' challenges. Our mid-term management plan includes "securing competitive advantage through technology leadership" as one of its basic strategies, and our engineers, who embody this strategy, will explain and propose the exhibited products in their own words. We would love to hear your feedback, so please feel free to stop by our booth.

[Speaker] Naoki Toda, Chief Economist, Management Strategy Research Office, Tokyo Electric Power Company Holdings, Inc. [Key Lecture Content] Since the 1990s, the global advancement of power system reforms has aimed for efficiency and optimization in both the operation and investment of facilities through active market competition. However, with the progress of DX/GX, the anticipated scenarios for electricity demand have led to the emergence of underinvestment issues worldwide. The IEA's report "Electricity Market Design," published last year, provides a comprehensive review of the reform situations in various countries and indicates that the underinvestment problem is a common issue across the globe. In this lecture, I will explain the current state of the underinvestment issue and potential responses from a business system perspective, referencing the IEA report and others. [Lecture Items] 1. Background of power system reforms and the underinvestment issue 2. About IEA "Electricity Market Design" 3. Reflecting on the thoughts of Akihiro Sawa on the 10th anniversary of his passing 4. Possible solutions to the Tenor Gap issue 5. Outlook for Japan's power system 6. Q&A / Business card exchange

[Instructor] Shinichiro Takiguchi, Senior Specialist, Innovation Strategy Center, Japan Research Institute, Inc. [Key Lecture Content] With the increase in renewable energy, the introduction of energy storage systems has progressed in two forms: renewable energy co-located systems to adjust power generation fluctuations, and demand co-located systems to secure electricity during grid outages. However, the landscape is changing significantly. The "Supply and Demand Adjustment Market" has been established by OCTTO (Organization for Cross-regional Coordination of Transmission Operators), and particularly due to the continued high pricing agreements in the short-term response market (primary adjustment power responding within 10 seconds), there have been numerous cases where battery storage profits are secured through market transactions. In the grid energy storage business, two capabilities are required: "trading power" and "financial power." This lecture will explain the business structure and key points of profitability. Additionally, based on this business structure, we will classify the companies entering the grid energy storage business and organize the market structure of this sector. As this business is influenced by regulatory trends, we will also discuss regulatory outlooks. Finally, we will talk about future prospects.

[Lecturer] Professor Yoshiharu Nishimura, Senior Researcher, Kansai Electric Power Co., Inc. Graduate School of Engineering, Osaka University, Business Engineering Program [Key Lecture Content] The examination of the next-generation power infrastructure conducted in 2025 has entered the implementation phase, including amendments to the Electricity Business Act, towards a new power policy standard (a sustainable framework by responsible players) in 2026. This lecture will outline the content and related policy adjustments for businesses involving renewable energy and storage batteries, and consider the correct business concepts, necessary timelines, and how to create business models moving forward. [Lecture Items] 1. What is the 2026 Next-Generation Power Infrastructure Reconstruction? 2. Renewable Energy and Decarbonization Policies and Issues with Chinese Products 3. The Latest Status of Storage Batteries and the Timeline and Vision for DER Business 4. Q&A / Business Card Exchange