Japanese version 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
The main research consists of nondestructive inspection technologies
for materials and structures, fracture accident prevention technologies,
industrial accidents statistics analyses and risk analysis.

Our research of "Flexible Eddy Current Arrays Detect Cracks in Steel" was posted on the website of Science Magazine on 3rd August, 2025, and the website of Bioengineer.org on 3rd August, 2025 and the website of ONE STOP NDT on 4th August, 2025.

Our research of "Application of risk curve for statistical analysis of backside corrosion in the bottom floors of oil storage tanks" was posted on the website of Advances in Engineering on 27th October.

Movies to detect defects in weld zone








My research papers as follows.
・[OPEN ACCESS]Flexible eddy current array measurement system for crack detection in weld zones of steel structures , Communications Engineering, 4, 132, 2025
・[OPEN ACCESS]Defect Inspection on Flat Surfaces and Weld Zones Utilizing an FEC Sensor and Crack Signal Processing with the MSSA Method , Sensors and Actuators A: Physical Volume 394, Volume 394, 1 November 2025, 116870
・[OPEN ACCESS]Development of Differential Hall sensors for Pulsed Eddy Current Testing using Gaussian Pulse Excitation, Sensors and Actuators A: Physical Volume 379, 1 December 2024
・[OPEN ACCESS]Predicting actual crack size through crack signal obtained by advanced Flexible Eddy Current Sensor using ResNet integrated with CBAM and Huber loss function, NDT & E International, Volume 149, January 2025, 103249
The article is now indicated on the most downloaded artilces of NDT &E international in the link.


・[OPEN ACCESS]Development of an optode-type chloride ion sensor utilizing optical fiber with silver film, Optical Fiber Technology, Volume 87, 2024, 1039082
・[OPEN ACCESS]Development of an optical fiber core sensor integrated with silver film for chloride ion measurement, Optical Materials, Volume 154, 2024,115772
・[OPEN ACCESS]Crack detection using a cutting-edge flexible eddy current sensor with voltage and phase measurement techniques, Mechanical Systems and Signal Processing, Volume 219, 2024,111613
・[OPEN ACCESS]Extraction of Atmospheric Corrosion Monitoring Sensor Signals using MSSA and Corrosion Progress Prediction with an LSTM Model, Sensors and Actuators: A. Physical, Volume 366, 1 February 2024, 114982
The article is now indicated on the most popular artilces of Sensors and Actuators A: Physical in the link.


・[OPEN ACCESS]Crack Detection in Low Carbon Steel using Rotating Uniform Eddy Current Probe and Noise Signal Filtering based on Multivariate Singular Spectrum Analysis, Sensors and Actuators: A. Physical, ume 362, 1 November 2023, 114628
・[OPEN ACCESS]The effect of eddy current probe configurations on crack signal magnitude: Consideration of excitation coil direction, Sensors and Actuators: A. Physical, Volume 358, 2023, 114437
・[OPEN ACCESS] A sophisticated design of copper core to converge rotating eddy current control for detecting cracks in conductive materials, Sci Rep 13, 5479 (2023)
・[OPEN ACCESS]Eddy current convergence probes with self-differential and self-nulling characteristics for detecting cracks in conductive materials, Sensors and Actuators: A. Physical, Volume 349, 2022, 114084
・A novel film eddy current probe having a detection coil interleaved to the excitation coil and the amplified effect by ferromagnetic amorphous alloys particles, Sensors and Actuators: A. Physical, Volume 347, 2022, 113913
・An eddy current convergence probe with copper core and single detection coil to detect flaws on aluminum plates, NDT & E International, Volume 132, 2022, 102707
The study have applied the use of a copper core as a novel approach to develop eddy current testing probe although ferrite or iron core coils are usually used for this purpose. The probe consists of a specially designed copper core, and a strong excitation current was converged at the tip of the copper core for probes to have good the detectability of flaws. The article was indicated on the most downloaded artilces of NDT &E international.


・[OPEN ACCESS]Application of Machine Learning for Data with an Atmospheric Corrosion Monitoring Sensor Based on Strain Measurements, Metals 12, no. 7: 1179
・[OPEN ACCESS]Public acceptance for the implementation of hydrogen self-refueling stations, International Journal of Hydrogen Energy, Volume 46, Issue 72, 2021,Pages 35739-35749
・[OPEN ACCESS]エラストマー固定チューナブルコロイドフォトニック結晶フィルムによるひずみの可視化, 色材協会誌, 2021, 94 巻, 9 号, p. 252A
・[OPEN ACCESS]Atmospheric Corrosion Sensor Based on Strain Measurement with Active–Dummy Fiber Bragg Grating Sensors, Metals 10 (8), 1076A
・[OPEN ACCESS]A Uniform Eddy Current Probe with a Double-Excitation Coil for Flaw Detection on Aluminium Plates, Metals, 2019, 9(10), 1116
・[OPEN ACCESS]Flaw Detection in Aluminum Plates Using a Rotating Uniform Eddy Current Probe with Two Pairs of Excitation Coils, Metals, 2019, 9(10), 1069



・Real-time aerosol chloride deposition measuring device using a conductivity sensor, Atmospheric Environment, Volume 213, 15 September 2019, Pages 757-766
・Simplified approach to evaluating safety distances for hydrogen vehicle fuel dispensers, International Journal of Hydrogen Energy, Volume 44, Issue 33, 5 July 2019, Pages 18639-18647
・[OPEN ACCESS]Atmospheric Corrosion Sensor Based on Strain Measurement with an Active Dummy Circuit Method in Experiment with Corrosion Products, Metals
・[OPEN ACCESS]The Improvement of Flaw Detection by the Configuration of Uniform Eddy Current Probes (Review Article), Sensors
・[OPEN ACCESS]A new analysis of wind on chloride deposition for long-term aerosol chloride deposition monitoring with weekly sampling frequency,Atmospheric Environment
・[OPEN ACCESS] Evaluation of Safety Measures of a Hydrogen Fueling Station Using Physical Modeling, Sustainability 2018, 10(11), 3846, (2018)
・ Barkhausen Noise Measurement System Using a Three-Pole Probe, Journal of Nondestructive Evaluation, (2018)
・Security risk analysis of a hydrogen fueling station with an on-site hydrogen production system involving methylcyclohexane, International Journal of Hydrogen Energy
・Comparative risk study of hydrogen and gasoline dispensers for vehicles, International Journal of Hydrogen Energy, Volume 43, Issue 27, 5 July 2018, Pages 12584-12594
・[OPEN ACCESS]A Robust Fiber Bragg Grating Hydrogen Gas Sensor Using Platinum-Supported Silica Catalyst Film , Journal of Sensors, 2018(1)
・[OPEN ACCESS]Development of Amplifier Circuit by Active-Dummy Method for Atmospheric Corrosion Monitoring in Steel Based on Strain Measurement, Metals. 2018; 8(1):5
・[OPEN ACCESS]Simulation-based safety investigation of a hydrogen fueling station with an on-site hydrogen production system involving methylcyclohexane,International Journal of Hydrogen Energy, Volume 42, Issue 15, 13 April 2017, Pages 10636-10644
　・Atmospheric corrosion sensor based on strain measurement, Measurement Science and Technology, 28 (1), 015106
　･[OPEN ACCESS]Leakage-type-based analysis of accidents involving hydrogen fueling stations in Japan and USA, Volume 41, Issue 46, 14 December 2016, Pages 21564-215705
･Mechanism for Corrosion Prevention by a Mechanical Plating of Uniform Zinc-Iron Alloy, Journal of Materials Engineering and Performance,　November 2016, Volume 25, Issue 11, pp 4680?4685
･Predicting maximum depth of corrosion using extreme value analysis and Bayesian inference, International Journal of Pressure Vessels and Piping, 2016
･The qualitative risk assessment of an electrolytic hydrogen generation system, International Journal of Hydrogen Energy 41 (30), 13308-13314, 2016
･Application of risk curve for statistical analysis of backside corrosion in the bottom floors of oil storage tanks, International Journal of Pressure Vessels and Piping 141, 19-25, 2016
･Preliminary hazard identification for qualitative risk assessment on a hybrid gasoline-hydrogen fueling station with an on-site hydrogen production system using organic chemical hydride, International Journal of Hydrogen Energy 41 (18), 7518-7525, 2016
･[OPEN ACCESS]Effect of gasoline pool fire on liquid hydrogen storage tank in hybrid hydrogen?gasoline fueling station, International Journal of Hydrogen Energy 41 (3), 2096-2104, 2016
･Degradation of Anticorrosive Organic Coating Applied to Inner Bottom Plate of Oil Storage Tank By a Large Scale Earthquake, Meeting Abstracts, 622-622, 2015
･Risk assessment for a gas and liquid Hydrogen fueling station, AIChE
･ Study on the effect of elastic stress and microstructure of low carbon steels on Barkhausen noise, Journal of Nondestructive Evaluation., September 2013, Volume 32, Issue 3, pp. 277-285
･Accident occurrence model for the risk analysis of industrial facilities, Reliability Engineering & System Safety, Volume 114, June 2013, Pages 71-74
･ Development of an Eddy Current Inspection Technique with Surface Magnetization to Evaluate the Carburization Thickness of Ethylene Pyrolysis Furnace Tubes, Journal of Nondestructive Evaluation, Volume 31, Issue 4 , pp 349-356 (2012)
･Experimental and Analytical Investigations ofAcoustic Wave Propagation using a Reservoir and an Acoustic Lens, Materials Evaluation, Vol. 70, No.4, pp.470-478.(2012)　
･Experimental and analytical study for detectability of the back-side flaws of flat ferromagnetic plates by RFECT, NDT & E International, Volume 44, Issue 8, December 2011, Pages 703-707
･Quantitative investigation of a standard test shim for magnetic particle testing, NDT & E International, 44(5):421-426 (2011)　
･Propane gas leak detection by infrared absorption using carbon infrared emitter and infrared camera, NDT & E International, 44(1):57-60. (2011)
･ Detection of carburization in ethylene pyrolysis furnace tubes by a C core probe with magnetization, Journal of Nondestructive Evaluation, Volume: 29, Issue: 3,Pages: 175-180 (2010)
･Correlation between corrosion rate and AE signal in an acidic environment for mild steel, Corrosion Science, Volume 51, Issue 8, Pages 1679-1684　
･Statistical Analysis of Corrosion in the Bottom Floors of Oil Storage Tanks (Second Report) Report on　the directed percolation simulation for corrosion in the bottom floors of oil storage tanks and its application, Journal of High Pressure Institute of Japan, Vol. 46 (2008), No. 4, pp.237-244　
･Evaluation of back-side flaws of the bottom plates of an oil-storage tank by the RFECT. NDT& E International, 2008. 41(7): pp. 525-529.
･Detection of fatigue damage accumulation and hydrogen embrittlement in 7075 alloy by the eddy current method, Journal of High Pressure Institute of Japan, 44(5),pp.10-16(2006)
･Residual Magnetic Flux Leakage Technique for Surface Flaws with the Magneto - Impedance Sensor and Wavelet Analysis, Journal of High Pressure Institute of Japan, 44(1),pp.47-54(2006)
･Influence of corrosion products on magnetic flux leakage signals in inspection of far-side metal-loss defects in oil storage tank bottom floors, Jpn. Petrol. Inst., 47 (1), pp.19-26 (2004)
･Non-destructive Evaluation Method for Far-side Corrosive Type Flaws in Oil Storage Tank Bottom Floors Using the Magnetic Flux Leakage Technique，Jpn. Petrol. Inst., 46(2), pp.126-132(2003)

You can find my research papers in following URL for nondestructive testing.

Propane gas leak detection by infrared absorption using carbon infrared emitter and infrared camera

Detection of a flaw with a eddy current probe I





Detection of a flaw with a eddy current probe II



We previously proposed a statistical risk analysis method for accidents at industrial facilities
by using a risk curve to show the relationship between the cumulative frequencies and
the damage magnitude of the accidents on a log-log scale.



I am always looking for collaborative work with oversea research institutes.
If you have the interests of collaborative research with me, please let me know.