Oscillation control experiments using an ultrasonic sound pressure measurement analysis system.

Technology for controlling nonlinear phenomena of ultrasound.

The Ultrasonic System Research Institute has developed a technology to control nonlinear ultrasonic phenomena by utilizing the interactions generated from simultaneously oscillating two types of ultrasonic probes from one oscillation channel of a function generator. (Note: Nonlinear (resonance) phenomena refer to the resonance phenomenon of ultrasonic vibrations that occurs due to the generation of harmonics resulting from original oscillation control, achieving high amplitudes through resonance.) By optimizing the ultrasonic propagation characteristics of various materials to suit specific purposes, efficient ultrasonic oscillation control becomes possible. Through the measurement and analysis of sound pressure data from ultrasonic testers, this system technology allows for the dynamic changes of surface elastic waves to be controlled according to their intended use. In practical terms, the use of multiple (two types of) ultrasonic probes for multiple (two types of) oscillations (sweep oscillation, pulse oscillation) generates complex vibration phenomena (original nonlinear resonance phenomena), achieving high sound pressure propagation states at high frequencies, or low frequency propagation states with high sound pressure levels tailored to the desired natural frequency.

• Non-destructive testing
• Vibration and Sound Level Meter
• others

Technology for optimizing the resonance and nonlinear phenomena of ultrasonic vibrations through megahertz oscillation control of an original ultrasonic oscillation control probe.

The Ultrasonic System Research Institute has developed a technology to control the nonlinear vibration phenomena of surface acoustic waves through ultrasonic oscillation control techniques. By confirming the basic acoustic characteristics of ultrasonic waves (response characteristics, propagation characteristics) for various targets (water tanks, transducers, probes, fixtures, objects, etc.), we realize ultrasonic propagation states tailored to specific applications through oscillation control. Using two or more types of nonlinear resonant ultrasonic oscillation control probes, we dynamically control high-frequency propagation states above 900 MHz through the setting of oscillation conditions for sweep oscillation and pulse oscillation (note), resulting in high sound pressure level resonance phenomena and the generation of harmonics (nonlinear phenomena of 10th order and above). Note: Precision cleaning examples Sweep oscillation: 700 kHz – 20 MHz, 15 W Pulse oscillation: 13 MHz, 8 W Ultrasonic propagation characteristics: 1) Detection of vibration modes (changes in autocorrelation) 2) Detection of nonlinear phenomena (changes in bispectrum) 3) Detection of response characteristics (analysis of impulse response) 4) Detection of interactions (analysis of power contribution rates) Note: "R" statistical processing language autcor: autocorrelation analysis function bispec: bispectrum analysis function

• Non-destructive testing
• Vibration and Sound Level Meter
• others

-- Ultrasonic System (Sound Pressure Measurement Analysis, Oscillation Control) --

The Ultrasonic System Research Institute manufactures and sells a system that combines the "Ultrasonic Tester NA (recommended type)," which allows for easy measurement and analysis of ultrasound, and the "Ultrasonic Oscillation System (20 MHz)," which enables easy control of ultrasonic oscillation. We propose system configurations (custom-made ultrasonic probes) tailored to the intended use (price and performance: cleaning, processing, stirring, inspection, etc.). Original Products: System Overview (Standard System) - Ultrasonic System (Sound Pressure Measurement and Analysis, Oscillation Control 10 MHz Type) - Ultrasonic Tester NA 10 MHz Type - Oscillation System 20 MHz Type Price: 281,050 yen (including tax: 10% consumption tax)

• Non-destructive testing
• Vibration and Sound Level Meter
• others

Ultrasonic Sound Pressure Measurement Analysis System - Measurement, Analysis, and Evaluation System Using Original Ultrasonic Probes - (Ultrasonic System Research Institute)

This is a measurement system using an ultrasonic probe. The ultrasonic probe is attached to the target object for oscillation and measurement. The measured data is analyzed considering position, state, and elastic waves, and is detected as various acoustic performances. Features (Specifications) - Measurement (Analysis) Frequency Range: 0.1 Hz to 200 MHz - Ultrasonic Oscillation: 1 Hz to 1 MHz - Capable of measuring surface vibrations - Continuous measurement for 24 hours is possible - Simultaneous measurement of any two points - Measurement results displayed in graphs - Software for time series data analysis included Ultrasonic Propagation Characteristics 1) Detection of vibration modes (changes in autocorrelation) 2) Detection of nonlinear phenomena (changes in bispectrum) 3) Detection of response characteristics (analysis of impulse response) 4) Detection of interactions (analysis of power contribution rate) Note: "R" is a free statistical processing language and environment - autcor: autocorrelation analysis function - bispec: bispectrum analysis function - mulmar: impulse response analysis function - mulnos: power contribution rate analysis function

• Vibration and Sound Level Meter
• Scientific Calculation and Simulation Software
• others

Technology to control low-frequency resonance phenomena and high-frequency nonlinear phenomena.

The Ultrasonic System Research Institute has developed technology to manufacture ultrasonic probes that can control ultrasonic propagation states from 500 Hz to over 500 MHz, tailored to specific applications. Ultrasonic Probe: Overview Specifications Measurement Range: 0.01 Hz to 200 MHz Oscillation Range: 1.0 kHz to 25 MHz Propagation Range: 0.5 kHz to over 900 MHz (confirmed through acoustic pressure data analysis) Materials: Stainless steel, LCP resin, silicon, Teflon, glass, etc. Oscillation Equipment: Example - Function Generator By understanding the acoustic properties of metals, resins, glass, etc., and through oscillation control, we achieve propagation states tailored to specific purposes regarding acoustic pressure levels, frequencies, and dynamic characteristics. This is a new foundational technology for precision cleaning, processing, stirring, and inspection based on measurement, analysis, and evaluation techniques for ultrasonic propagation states. By utilizing the acoustic properties of various materials, ultrasonic stimulation can be controlled for structures and machine tools weighing several tons, even in a 3000-liter water tank, with ultrasonic output below 20 W. It was developed as an application method for nonlinear phenomena through an engineering (experimental and technical) perspective on elastic waves and an abstract algebraic ultrasonic model.

• Water Treatment
• Other measuring instruments
• others

An ultrasonic system that easily controls the oscillation of megahertz ultrasound—applying technology to evaluate the propagation characteristics of ultrasonic probes.

The Ultrasonic System Research Institute has developed a technology to control the nonlinear phenomena of surface elastic waves (ultrasonic vibrations) that propagate through the target object, using an original ultrasonic system (sound pressure measurement analysis, oscillation control). **Technology for Controlling Nonlinear Ultrasonic Vibration Phenomena** 1) Control setting technology that adjusts the oscillation output, waveform, and variations of the oscillation control using a function generator, tailored to the acoustic characteristics of the target object. 2) Manufacturing technology for an ultrasonic oscillation control probe that enables control of changes in ultrasonic oscillation voltage, including adjustments to the oscillation surface. 3) Manufacturing technology for an ultrasonic measurement probe that allows for the measurement of changes in ultrasonic vibrations at 100 megahertz, including adjustments to the oscillation surface. 4) Optimization technology for sweep oscillation conditions. Using the above technologies, we control (optimize) the propagation state of ultrasonic waves according to specific objectives. Note: The dynamic control of ultrasonic waves is performed based on the analysis and evaluation of sound pressure data related to nonlinear phenomena, considering the interaction between the acoustic characteristics of the target object and ultrasonic oscillation control. (Sound pressure measurement, analysis, confirmation, and evaluation are conducted using an ultrasonic tester.)

• Analysis and prediction system
• Other measuring instruments
• others

Ultrasonic control based on the classification of ultrasonic propagation conditions (measurement, analysis, and evaluation of sound pressure data) technology.

The Ultrasonic System Research Institute has developed manufacturing and utilization technologies for ultrasonic probes that control resonance phenomena and nonlinearity regarding surface elastic waves that propagate to objects above 100 MHz with oscillations below 20 MHz. We manufacture and develop original ultrasonic oscillation control probes tailored to specific purposes. The key point is the optimization of the propagation characteristics of surface elastic waves on the surface of ultrasonic elements according to the intended use. To achieve this, we adjust the surface of the ultrasonic probe based on the ultrasonic propagation characteristics through acoustic pressure measurement, analysis, and evaluation (acoustic pressure level, frequency range, nonlinearity, dynamic characteristics, etc.) to match the intended use. Ultrasonic Probe Measurement Range: 0.01 Hz to 100 MHz Oscillation Range: 1 kHz to 25 MHz Propagation Range: 1 kHz to over 900 MHz Materials: Stainless steel, LCP resin, silicon, Teflon, glass, etc. Oscillation Equipment Example: Function Generator By understanding the acoustic characteristics of the target object and installation conditions, we have achieved dynamic control of surface elastic waves (propagation state). We realize propagation states tailored to various purposes.

• Non-destructive testing
• Vibration and Sound Level Meter
• others

Feedback analysis using multivariate autoregressive models for time series data: autocorrelation, power spectrum, bispectrum...

The Ultrasonic System Research Institute has developed a completely new technology for controlling the propagation state of surface elastic waves using its original product (ultrasonic tester). The ultrasonic sound pressure measurement and analysis technology developed so far will apply measurement, analysis, and evaluation techniques related to nonlinear phenomena in ultrasonics. It has become possible to implement new countermeasures based on vibration phenomena concerning vibrations and noise from buildings and roads, equipment, devices, walls, pipes, desks, handrails... as well as the vibrations at the moment of metal melting during welding and instantaneous vibrations during machining. Consulting services are available for this technology. Note: The following tools will be used for analysis Note: OML (Open Market License) Note: TIMSAC (TIMe Series Analysis and Control program) Note: "R," a free statistical processing language and environment autcor: autocorrelation analysis function bispec: bispectrum analysis function mulmar: impulse response analysis function mulnos: power contribution rate analysis function

• Vibration and Sound Level Meter
• Scientific Calculation and Simulation Software
• others

Kort Valuta Inc. (Head Office: Shibuya, Tokyo; CEO: Hideki Shibata) is pleased to announce that we will hold our next recruitment event, “Kort Valuta Night,” on November 26, 2025. This recurring event offers an opportunity for potential candidates to casually learn about our company culture and team atmosphere before applying. By lowering the barrier to entry and providing authentic insights from current employees, the event helps participants gain a more concrete sense of what it’s like to work at Kort Valuta. Since the event’s launch, approximately ten attendees have gone on to join the company in a range of roles — including marketing, customer support, and backend engineering.

Kort Valuta Inc. (Headquarters: Shibuya-ku, Tokyo; President & CEO: Hideki Shibata; hereinafter “the Company”) announces that it has renewed the user interface (UI) of TwooCa, the Company’s digital employee ID with Visa payment functionality.

Kort Valuta Inc. (Headquarters: Shibuya-ku, Tokyo; CEO: Hideki Shibata) is pleased to announcethat NBS Logisol Co., Ltd. (Headquarters: Hita City, Oita Prefecture; CEO: Itsuro Kono) has introduced “TwooCa,”a Visa-enabled digital employee ID card, for approximately 1,100 employees.

An article about the resin-based lightweight formwork system "PERI DUO" has been published in the "Construction News" (November 7, 2025)! "PERI DUO" is a new system formwork made of resin that can be used for walls. It is made from a newly developed material called "Politec," which is high-strength and lightweight. With fewer components, it is easy to handle. It allows for increased reuse and is an environmentally friendly lightweight formwork that is flexible on the construction site! 【DUO Product Features】 ■ New system formwork made of resin ■ High strength and lightweight ■ Fewer components and easy to handle ■ 100% recyclable *For more details about this product, please feel free to contact us. PERI Japan Co., Ltd.

We are pleased to announce that the "Kuji Regional Renewable Energy Circulation Project" in Kuji City, Iwate Prefecture, has received an Excellence Award at the 2025 Solar Week Awards organized by the Japan Photovoltaic Energy Association. The "Solar Week Awards" recognize initiatives and projects that contribute to the community, are desired by the community, and serve as models for the expansion of solar power generation. On July 24, 2025, NGK Insulators, Ltd. issued a press release titled "Start of Operation of Solar Power Generation Equipment at Hybrid Storage Facility with Sharing Function - Ceremony Held at Solar Power Plant Operated by Iwate Bank Group Company." This demonstration of the hybrid storage facility with sharing function (StorageHub) is being conducted by manorda Iwate, a regional trading company fully funded by Iwate Bank, with development led by NR-Power Lab Co., Ltd. NR-Power Lab Co., Ltd. is leading the design, development, and system operation of the StorageHub in this project. We will continue to collaborate with our partner companies to engage in technological development and the creation of advanced services aimed at realizing a sustainable local community.