Developed a technology to measure, analyze, and evaluate the interaction of ultrasonic vibrations.

- Feedback Analysis Using Autoregressive Models: Analysis of Power Contribution Rates - Effects of Tanks and Ultrasound, Cleaning Materials and Ultrasound, Adjacent Tanks, ...

Development of technology to measure, analyze, and evaluate the interaction of ultrasonic vibrations -- Feedback analysis of sound pressure data: Analysis of power contribution rate -- The Ultrasonic System Research Institute has developed technology to measure, analyze, and evaluate various interactions by analyzing time-series data obtained from ultrasonic sound pressure measurements. As a result, this has evolved into technology that optimizes ultrasonic utilization conditions based on the evaluation of interactions. Specifically, there are the following examples: 1) Optimization of selection criteria for ultrasonic oscillation frequency and output level 2) Optimization of ultrasonic oscillation control conditions 3) Optimization regarding the installation of tanks and ultrasonic (transducers) 4) Optimization of liquid circulation devices and control conditions 5) Optimization of design conditions for tanks and ultrasonic systems 6) Optimization of cleaning solutions, detergents, solvents, etc. 7) Optimization with adjacent tanks, jigs, etc. It is possible to develop original ultrasonic systems tailored to specific purposes.

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

To stabilize the effects of cavitation, a statistical perspective is essential — a technology to optimize nonlinear ultrasonic phenomena according to specific purposes.

<Regarding the Creation of Logical Models> (Using Information Quantity Criteria) 1) Based on various fundamental technologies, clearly recognize the "information data group," DS = (D1, D2, D3), related to the subject, consisting of: D1 = Objective knowledge (theory supported by academic logic) D2 = Empirical knowledge (results obtained so far) D3 = Observational data (current state) and create multiple model proposals from its organizational use. 2) Understand statistical thinking as a method of realizing information acquisition through the composition of the information data group (DS) and the repeated proposal and verification of models based on it. 3) Determine the optimal model by comparing various models using evaluation methods such as AIC. 4) Construct ultrasonic devices and systems based on the created models. 5) Considering time and efficiency, the following responses are proposed: 5-1) Taking into account the "logical model creation matters," create "intuitive models" for multiple people to examine. 5-2) Modify and review the models based on actual data and new information. 5-3) Enter into specific discussions about devices and systems based on models that the review members can agree upon.

• Other analytical equipment
• Scientific Calculation and Simulation Software
• others

To stabilize the effects of cavitation, a statistical perspective is essential.

The Ultrasonic System Research Institute is developing technologies related to effective "measurement, analysis, and evaluation methods" utilizing a <statistical approach> in the field of ultrasonic applications. <About the statistical approach> Statistical mathematics has both abstract and concrete aspects, and through contact with concrete entities, abstract thoughts or methods are developed. This is the characteristic of statistical mathematics. Regarding ultrasonic research, "a statistical perspective is essential for stabilizing the effects of cavitation." <About models> Models are constructed with the aim of effectively advancing understanding, prediction, control, etc., regarding the subject. Constructing an accurate model is difficult, and discussions are always conducted using a suitably "rounded" representation of the complexity of the subject. In that sense, the process of constructing or building a model requires statistical thinking. Propagation characteristics of ultrasound: 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)

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

Relaxation and uniform treatment of surface residual stress using ultra-fine bubbles and megahertz acoustic flow control.

<<Deaeration Fine Bubble Generation Liquid Circulation Device>> 1) By narrowing the suction side of the pump, cavitation is generated. 2) Cavitation causes bubbles of dissolved gas to form. The above describes the state of the deaeration liquid circulation device. 3) When the concentration of dissolved gas decreases, the size of the bubbles formed by cavitation becomes smaller. 4) Through appropriate liquid circulation, fine bubbles of less than 20μ are generated. The above describes the state of the deaeration microbubble generation liquid circulation device. 5) When ultrasonic waves are applied to the above-mentioned deaeration fine bubble generation liquid circulation device, the ultrasonic waves disperse and crush the fine bubbles, and when measuring the fine bubbles, the distribution of ultrafine bubbles becomes greater than that of fine bubbles. The above state indicates that ultrasonic waves can be stably controlled. 6) In the state where ultrasonic waves can be stably controlled, the original product: a megahertz ultrasonic oscillation control probe is used to control the oscillation of megahertz ultrasonic waves. The method of controlling the sound pressure level is achieved by controlling the original nonlinear resonance phenomenon of liquid circulation and megahertz ultrasonic waves, setting and controlling it to an effective dynamic state.

• Turbid water and muddy water treatment machines
• Other measuring instruments
• Manufacturing Technology

- Nonlinear control system of megahertz ultrasound using an original ultrasonic oscillation control probe -

The Ultrasonic System Research Institute has developed the "Ultrasonic Oscillation Control System 2023," which allows for easy control of megahertz ultrasonic oscillation in combination with a new function generator. System Overview (Ultrasonic Oscillation System (25MHz 2ch 200MSa/s)) Contents: - Two ultrasonic oscillation probes - One set of function generator (DG1022Z 25MHz 2ch 200MSa/s) - One set of operation manual (USB memory) Propagation characteristics of the ultrasonic probes: 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) The following tools will be used for analysis: "R," a free statistical processing language and environment - autocor: 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

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

We manufacture and sell an "oscillation system at 20 MHz" that allows for easy control of megahertz ultrasonic oscillation.

The Ultrasonic System Research Institute has developed a megahertz ultrasonic oscillation control system that applies acoustic characteristic analysis and evaluation technology related to the manufacturing of original products: ultrasonic oscillation probes. This is a new application system for cleaning, modification, inspection, and more using ultrasonic waves. It is also possible to apply control through the combination of low-frequency vibrations and sounds. Developed from an engineering (experimental and technical) perspective on elastic waves and an abstract algebraic ultrasonic model, this application system technology has been created. The key point is the utilization of surface acoustic waves. By confirming the propagation characteristics of ultrasonic waves depending on the conditions of the target object (Note 1), it is important to address it as an original nonlinear resonance phenomenon (Notes 2, 3). Note 1: Propagation characteristics of ultrasonic waves - Nonlinear characteristics - Response characteristics - Fluctuation characteristics - Effects due to interactions Note 2: Original nonlinear resonance phenomenon The occurrence of harmonics generated by original oscillation control, realized at high amplitudes through resonance phenomena, leads to the resonance phenomenon of ultrasonic vibrations. Note 3: Transient ultrasonic stress wave

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

- Surface modification technology (stress relaxation and uniformity) through nonlinear oscillation control of original ultrasonic probes -

The Ultrasonic System Research Institute has made it possible to control the nonlinear propagation state of ultrasound by utilizing measurement, analysis, and control technologies related to the propagation state of ultrasound as the acoustic characteristics of the target object. As a result, we have developed and advanced technology to efficiently alleviate residual stress on the surface of components. This technology for alleviating surface residual stress improves fatigue strength against metal fatigue and achieves uniformity in various surface treatments. In particular, by considering the guided waves (surface elastic waves) of the target object in the setting and control of the ultrasonic propagation state, we have developed control methods and tools that realize effective dynamic changes in the target object as stimuli that include nonlinear phenomena. We have confirmed a wide range of effects on various types of metal parts, resin parts, and powder materials. This is a new surface treatment technology using ultrasound, which, including the general effects based on acoustic characteristics, can be utilized and developed as a distinctive inherent operational technology for the development of new materials, stirring, dispersion, cleaning, and chemical reaction experiments.

• Other analytical equipment

Technology for controlling low-frequency resonance phenomena and high-frequency nonlinear phenomena.

The Ultrasonic System Research Institute has developed ultrasonic oscillation control technology utilizing nonlinear vibration phenomena based on surface acoustic waves. By confirming the basic acoustic characteristics (response characteristics, propagation characteristics) for various targets (water tanks, transducers, probes, jigs, objects, etc.), the desired ultrasonic propagation state can be achieved through oscillation control. By setting the oscillation conditions (waveform, output, control, etc.) with an original nonlinear resonant ultrasonic oscillation probe, we optimize high-frequency propagation states above 300 MHz through high sound pressure resonance phenomena and harmonic generation phenomena (nonlinear phenomena). This technology is an efficient method for utilizing low-output ultrasonic oscillation. The key point is the setting of various parameters utilizing the characteristics of a discrete function generator through digital control. By using the nonlinear resonant ultrasonic oscillation probe, the control range of sound pressure levels due to resonance phenomena is greatly expanded, which is significantly different from conventional sound pressure levels caused by resonance phenomena. Therefore, optimization of control settings based on sound pressure measurement analysis is necessary to avoid phenomena such as damage or destruction.

• Special Construction Method
• Non-destructive testing
• others

Surface inspection technology utilizing ultrasonic transmission and reception characteristics.

The Ultrasonic System Research Institute has developed a new surface inspection technology using megahertz ultrasonic oscillation based on its track record of analyzing ultrasonic data propagating on the surface of target objects. This method applies measurement and analysis technology for "sound pressure and vibration" controlled by ultrasonic probe oscillation. We provide consulting and evaluation technology explanations tailored to the development of ultrasonic probes that match the target object's surface vibration modes. This is an application of new ultrasonic oscillation control technology. By utilizing nonlinear phenomena related to megahertz ultrasonic propagation states that correspond to the acoustic characteristics of the target object, it is possible to detect new features regarding the surface condition of the target object. In particular, by utilizing response characteristics from combinations of oscillation and reception, this fundamental technology serves as a new evaluation parameter for surface inspection of substrate components and pre-evaluation of precision cleaning parts. By measuring, analyzing, and evaluating the dynamic characteristics of ultrasonic waves related to the propagation phenomena of surface elastic waves, we have enabled effective use tailored to the objectives (evaluation) by constructing and modifying logical models.

• Non-destructive testing
• Other measuring instruments
• others

Technology for Controlling Nonlinear Phenomena of Ultrasound

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 to Control Nonlinear Phenomena of Ultrasound >> 1) A control setting technology that adjusts the oscillation output, waveform, and variations of the oscillation control using a function generator to match the acoustic characteristics of the target object. 2) Manufacturing technology for ultrasonic oscillation control probes that enable control of changes in ultrasonic oscillation voltage, including adjustments to the oscillation surface. 3) Manufacturing technology for ultrasonic measurement probes that make it possible to measure 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 ultrasound according to the intended purpose. Note: Based on the analysis and evaluation of sound pressure data related to nonlinear phenomena concerning the interaction between the acoustic characteristics of the target object and ultrasonic oscillation control, we perform dynamic control of ultrasound (measurements, analysis, confirmation, and evaluation of sound pressure are conducted using an ultrasonic tester).

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

Development of "Control Technology for Nonlinear Phenomena" Using a Small Pump

The Ultrasonic System Research Institute has developed "ultrasonic control technology" that dynamically controls nonlinear phenomena related to ultrasonic propagation by utilizing a small pump for liquid circulation. Nonlinear phenomena are evaluated through analysis using an ultrasonic tester. The complex changes in ultrasound (such as ultrasonic cleaners, ultrasonic probes, etc.) are confirmed through time-series data analysis of sound pressure from ultrasonic oscillation and reception, identifying various interactions. Based on the confirmation of these interactions, the oscillation control conditions using ultrasonic probes are optimized, achieving a dynamic ultrasonic control system tailored to specific objectives. In practical applications, such as ultrasonic cleaning, the ON/OFF control (or control of flow rate and velocity, etc.) of the current liquid circulation device is optimized by considering the ultrasonic propagation characteristics related to the installation state of the device and the surface elastic waves of the target object, including the output, oscillation frequency, and control conditions of the ultrasound. In particular, by utilizing the vibration characteristics of the pump to alternately circulate liquid and gas, new nonlinear effects of ultrasound and microbubbles are realized.

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

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.

The recognition that "the PDF invoice received from the other party must be stored as electronic data" is widely accepted. However, is that response truly sufficient for perfection? ◆ The "receipt" of electronic transactions includes issuance and delivery The Electronic Bookkeeping Act defines "electronic transactions" as the receipt of electromagnetic records related to transaction information. Breaking down the term "receipt" is key to understanding. - "Receipt": Receiving electronic data such as invoices and receipts from business partners - "Issuance": Issuing and delivering electronic data such as invoices and estimates to business partners When downloading a PDF from your company's accounting system and attaching it to an email, or concluding electronic contracts through a cloud-based invoicing service, both the receiving party and the issuing party (your company) are obligated to store the data. 【Utilizing paperlogic DESKTOP for document management】 - Elimination of manual input - Assurance of reliable searchability - Centralized management of receipt and issuance → paperlogic DESKTOP addresses the challenges of complex metadata management in the storage of these issued documents.

We are pleased to announce that Arsystem Co., Ltd. has received the "Health Management Excellent Corporation 2025" and "Next Bright 1000*" certifications under the Health Management Excellent Corporation Certification System promoted by the Ministry of Economy, Trade and Industry and the Japan Health Conference. *Certified corporations that applied for Bright 500, ranking from 501 to 1500. This year, we are also able to receive the new certification "Next Bright 1000," and we feel happy to have taken another step toward realizing our vision of being "the company that values its employees the most on Earth." Moving forward, we will continue to strive to create a "Love Al" environment where each of our valued employees can work healthily and energetically, both physically and mentally.

Recently, the calculation formula for electric floor heating in the "Energy Consumption Performance Calculation Program" has been significantly revised and was officially released in April. With this release, the introduction of electric floor heating in ZEH homes has become possible. For more details on heating conditions, please refer to the attached flyer. "Energy Consumption Performance Calculation Program" can be found here ▸ https://house.app.lowenergy.jp/#/ If you have any other questions or concerns, please feel free to contact our representative.

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.