Optimization techniques for the resonance phenomenon and nonlinear phenomena of ultrasonic cleaning machines—Analysis of ultrasonic sound pressure data: autocorrelation, bispectrum, power contribution rate, impulse response.

New ultrasonic dynamic control technology

The Ultrasonic System Research Institute has developed a completely new dynamic control technology for ultrasound using two function generators. This technology enables the control of ultrasonic nonlinear phenomena and resonance phenomena through different types of (sweep) oscillation using two different waveforms. By applying this technology, we are developing practical methods to relieve surface residual stress in components and various application technologies, and we provide consulting services. Standard settings: 1) Sweep oscillation control from 3 MHz to 20 MHz 2) Sweep oscillation control from 60 kHz to 13 MHz 3) Ultrasonic dynamic control using a 42 kHz 35W ultrasonic cleaner (realizing dynamic fluctuation-type ultrasonic propagation control) Note: Regarding the surface of the ultrasonic cleaner's tank, surface residual stress relief and uniform treatment are performed using an ultrasonic oscillation control probe and a degassing fine bubble generation liquid circulation device. As a result of the uniformization effect, ultrasonic control using harmonics above 200 MHz has been achieved.

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

Technology for evaluating the dynamic characteristics of original ultrasonic probes—self-correlation, bispectrum, impulse response characteristics, power contribution rate.

Technology for Evaluating the Dynamic Characteristics of Ultrasonic Probes We offer consulting services for this technology. If you are interested, please contact us via email. By utilizing the acoustic properties (surface elastic waves) of various materials (glass containers, etc.), we have confirmed the effects of ultrasonic stimulation on structures, machine tools, and various manufacturing lines, even in a 5000-liter water tank with ultrasonic output below 20W. This was developed as a method for controlling and applying nonlinear phenomena through an engineering (experimental and technical) perspective on elastic wave motion and an ultrasonic model from abstract algebra. The key point is the technology for utilizing surface elastic waves on ultrasonic element surfaces. By confirming the propagation characteristics of ultrasound based on the conditions of the target object (material, shape, structure, size, quantity, etc.), it is important to address it as an original nonlinear resonance phenomenon. Note 1: Propagation characteristics of ultrasound Propagation characteristics of ultrasonic probes: 1) Detection of vibration modes (changes in self-correlation) 2) Detection of nonlinear phenomena (changes in bispectrum) 3) Detection of response characteristics (analysis of impulse response characteristics) 4) Detection of interactions (analysis of power contribution rates)

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

Ultrasound consulting specialized in measurement and analysis of ultrasonic propagation conditions.

The Ultrasonic System Research Institute conducts consulting related to ultrasonic applications using a technology that measures, analyzes, and evaluates the propagation state of ultrasound, applying feedback analysis techniques based on multivariate autoregressive models. By organizing the measurements, analyses, and results obtained using ultrasonic testers in chronological order, we establish and confirm new evaluation criteria (parameters) that indicate the appropriate ultrasonic state for specific purposes. Note: - Nonlinear characteristics (dynamic characteristics of acoustic flow) - Response characteristics - Fluctuation characteristics - Effects due to interactions By developing original measurement and analysis methods that consider the acoustic properties of the target object and surface elastic waves, we deepen our understanding of the relationships between various effects related to vibration phenomena, drawing on the principles of statistical mathematics. As a result, there is an increasing number of cases demonstrating that new nonlinear parameters are highly effective regarding the propagation state of ultrasound and the surface of the target object. In particular, evaluation cases related to cleaning, processing, and surface treatment effects lead to successful control and improvement based on good confirmations.

• others

Control technology for acoustic flow (the main cause of ultrasonic effects: nonlinear phenomena) using ultrasound and fine bubbles.

The Ultrasonic System Research Institute has developed a method (system) for the <analysis and evaluation> of ultrasound, applying "measurement, analysis, and control" technology related to the nonlinearity of ultrasound. We provide consulting for a degassing microbubble generation liquid circulation system utilizing this technology. To utilize (control) the complex and changing conditions of ultrasound in a stable state, we conduct consulting to add the degassing microbubble generation liquid circulation system to specific tanks present on-site. 1: Explanation of principles 2: Specific proposals tailored to the cleaning machine (device) 3: Explanation of know-how 4: Explanation of verification methods, adjustment methods, and maintenance methods Development of nonlinear vibration control technology using fine bubbles and megahertz ultrasound Regarding this technology, we provide consulting as "vibration measurement technology utilizing ultrasound." Ultrasound propagation characteristics: 1) Detection of vibration modes (changes in self-correlation) 2) Detection of nonlinear phenomena (changes in bispectrum) 3) Detection of response characteristics (analysis of impulse response characteristics) 4) Detection of interactions (analysis of power contribution rates)

• pump
• Other analytical equipment
• others

Machining technology using ultrasonic systems (sound pressure measurement analysis, oscillation control).

The Ultrasonic System Research Institute has developed "ultrasonic oscillation control (processing) technology" that utilizes the acoustic characteristics (vibration response characteristics and nonlinear phenomena) of objects (tools, target items, etc.) through a sound pressure measurement analysis device (ultrasonic tester) and a megahertz ultrasonic oscillation control probe. With this developed technology, it has become possible to control nonlinear vibration phenomena in target objects through "ultrasonic oscillation and output control," achieving dynamic control of ultrasonic waves (changes in bispectrum). The original ultrasonic oscillation control probe allows for the utilization and control of nonlinear effects of ultrasonic vibrations. This is an effective ultrasonic utilization (control) technology tailored to applications such as processing, cleaning, surface modification, and promoting chemical reactions. There are interactions with the acoustic characteristics of cutting tools (drills, reamers, cutters, knives, etc.) and the size and material of cutting oils, jigs, and target objects, making the analysis (self-correlation, impulse response, contribution rate, bispectrum) complex. However, various optimizations based on the analysis results of sound pressure measurement data become possible.

• Other measuring instruments
• Scientific Calculation and Simulation Software
• others

Optimization technology for ultrasonic cleaning machines

(Development of a control system based on measurement and analysis of ultrasonic cleaning machines) The Ultrasonic System Research Institute has developed a technology that applies techniques for measuring and analyzing the state of ultrasonic cleaning machines, which propagate through the liquid, to set and control the state of ultrasonic cleaning machines according to specific purposes, taking into account the effects of tank structure, strength, manufacturing conditions, and liquid circulation state. This technology analyzes and evaluates the dynamic characteristics of complex ultrasonic vibrations (Note 1) in relation to various factors, allowing for the setting of cavitation and acceleration effects according to specific objectives through the configuration of circulation pump settings (Note 2). Note 1: This utilizes the original technology of the Ultrasonic System Research Institute, which employs "ultrasonic oscillation control" technology that considers "timbre." Note 2: The know-how involves settings related to the relationships between the cleaning machine, cleaning solution, and air at their respective boundaries. It can also be applied to cleaning tanks that do not have an overflow structure. Regarding the self-organization of micro-flows, control of acoustic flow has been made possible through degassing, aeration, ultrasound, and elastic wave dynamics on the tank surface.

• pump
• Other analytical equipment
• others

- Experimental and Research Cycle of Abstract Algebra Models and Ultrasonic Phenomena - Technology for Achieving Dynamic Control of Ultrasound

The Ultrasonic System Research Institute has developed a technology for ultrasonic <dynamic control> that optimizes the interaction of ultrasonic vibrations based on various analysis results of ultrasonic propagation states using an original ultrasonic system and an abstract algebra model. Note: The control of resonance phenomena (low harmonics) and nonlinear phenomena (high harmonics) is achieved by setting oscillation control conditions based on a logical model. In contrast to existing control technologies, this technique establishes and implements optimal control states tailored to the purposes of ultrasonic applications (cleaning, stirring, processing, etc.) through new measurement and evaluation parameters (note) concerning the entire propagation path of ultrasonic vibrations, including various propagation tools. This is a method and technology that can be applied immediately, and we offer it as consulting services (there is an increasing track record of precision cleaning and stirring at the nano level). Note: Using original technology (ultrasonic tester), we measure, analyze, and evaluate dynamic changes in the propagation state of water tanks, transducers, target objects, and tools, among others. (Parameters: power spectrum, autocorrelation, bispectrum, power contribution rate, impulse response characteristics, etc.)

• Non-destructive testing
• Scientific Calculation and Simulation Software
• others

We will measure, analyze, and evaluate the propagation state of ultrasound using an ultrasonic tester.

Features (for standard specifications) * Measurement (analysis) frequency range Specification: 0.1 Hz to 10 MHz * Ultrasonic oscillation Specification: 1 Hz to 100 kHz * Capable of measuring surface vibrations * Continuous measurement for 24 hours * Simultaneous measurement of any two points * Display of measurement results in graph form * Attached software for time series data analysis 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, detecting various acoustic performances. Ultrasonic Probe: Outline Specifications Measurement range: 0.01 Hz to 10 MHz Oscillation range: 1 kHz to 25 MHz Propagation range: 1 kHz to over 900 MHz Materials: Stainless steel, LCP resin, silicone, Teflon, glass... Ultrasonic Propagation Characteristics 1) Detection of vibration modes (changes in self-correlation) 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)

• Non-destructive testing
• 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

An experimental system for controlling chemical reactions using megahertz ultrasound.

The Ultrasonic System Research Institute has developed a technology for controlling chemical reactions using ultrasound by utilizing the technology for controlling nonlinear phenomena of ultrasound (acoustic flow). This technology controls ultrasound (cavitation and acoustic flow) tailored to specific purposes through ultrasonic control using a megahertz ultrasonic oscillation probe by measuring and confirming the interactions within the container. Note: Ultrasonic Control By setting the oscillation conditions for sweep oscillation and pulse oscillation using two types of nonlinear resonant ultrasonic oscillation probes, it dynamically controls high-frequency propagation states above 30 MHz through high sound pressure resonance phenomena and harmonic generation phenomena (nonlinear phenomena). Note: Ultrasonic Control "Precision Cleaning Example" Sweep Oscillation: 70 kHz – 15 MHz, 15 W Pulse Oscillation: 13 MHz, 8 W Note: Ultrasonic Control "Nano-Level Stirring Example" Sweep Oscillation: 880 kHz – 22 MHz, 12 W Pulse Oscillation: 14 MHz, 10 W In particular, the dynamic characteristics of harmonics through acoustic flow control enable reactions and responses at the nano level.

• Other measuring instruments
• Scientific Calculation and Simulation Software
• others

Regarding sound pressure measurement data, a classification and evaluation technique for ultrasonic propagation states using feedback solutions of time-series data—self-correlation and bispectrum.

The Ultrasonic System Research Institute has been manufacturing and selling measurement and analysis systems for ultrasonic vibrations since April 2012. The system allows for visual confirmation of the nonlinear phenomena of ultrasound (acoustic streaming) and cavitation effects through graphs, considering elastic wave propagation in the analysis of the measured data. To account for the "nonlinear phenomena" in the complex variations of ultrasonic usage conditions, we analyze the autocorrelation and bispectrum using autoregressive models of time series data to evaluate and apply these changes. We have realized numerous new utilization methods according to various purposes. 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 characteristics) 4) Detection of interactions (analysis of power contribution rates) 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

• Non-destructive testing
• Vibration and Sound Level Meter
• Scientific Calculation and Simulation Software

Optimization of cavitation and acoustic flow using a degassed fine bubble generation liquid circulation device.

The Ultrasonic System Research Institute has developed an ultrasonic cleaning machine utilizing microbubbles, based on measurement, analysis, and evaluation techniques related to ultrasonic propagation phenomena, which can also be used for ultrasonic processing, stirring, and chemical reactions. Recommended System Overview 1: Two types of ultrasonic transducers (standard types 38 kHz, 72 kHz) that perform surface modification treatment using ultrasonic waves and microbubbles. 2: An ultrasonic dedicated tank (standard type, inner dimensions: 500*310*340mm) that performs surface modification treatment using ultrasonic waves and microbubbles. 3: A degassing and microbubble generation liquid circulation system. 4: An optimization control system for ultrasonic output and liquid circulation via a control device. 5: An acoustic pressure management system using an ultrasonic tester. *Features This is an effective device utilizing an ultrasonic dedicated tank. Due to the efficient use of ultrasonic waves, the strength and durability of a standard tank are insufficient. Depending on the target and purpose of cleaning, stirring, and surface modification, two types of ultrasonic transducers are combined and controlled. The recommended combination is in the state of 38 kHz and 72 kHz. Technology for stably utilizing fine bubbles of 20 μm or less.

• pump
• 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.