• 1225 Citations
  • 19 h-Index
19992019
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Research Output 1999 2019

  • 1225 Citations
  • 19 h-Index
  • 150 Article
  • 54 Conference contribution
  • 8 Patent
  • 1 Chapter
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Article
2019

Design of eddy current testing probe for surface defect evaluation

Saari, M. M., Nadzri, N. A., Halil, A. M., Ishak, M., Sakai, K., Kiwa, T. & Tsukada, K., Jan 1 2019, In : International Journal of Automotive and Mechanical Engineering. 16, 1, p. 6357-6367 11 p.

Research output: Contribution to journalArticle

Eddy current testing
Surface defects
Magnetoresistance
Eddy currents
Spatial distribution

Development of a Highly Sensitive Magnetic Field Detector with a Wide Frequency Range for Nondestructive Testing Using an HTS Coil with Magnetic Sensors

Hirata, T., Goda, Y., Sakai, K., Kiwa, T., Adachi, S., Tsukamoto, A., Hato, T., Tanabe, K. & Tsukada, K., Aug 1 2019, In : IEEE Transactions on Applied Superconductivity. 29, 5, 3500905.

Research output: Contribution to journalArticle

Magnetic sensors
Nondestructive examination
coils
frequency ranges
Magnetic fields

Electric Potential Distribution on Lithium Ion Battery Cathodes Measured Using Terahertz Chemical Microscopy

Kiwa, T., Akiwa, Y., Fujita, H., Teranishi, T., Sakai, K., Nose, H., Kobayashi, M. & Tsukada, K., Nov 1 2019, In : Journal of Infrared, Millimeter, and Terahertz Waves, Online First.

Research output: Contribution to journalArticle

electric batteries
lithium
cathodes
microscopy
electric potential

Extraction Method of Crack Signal for Inspection of Complicated Steel Structures Using A Dual-Channel Magnetic Sensor

Hayashi, M., Saito, T., Nakamura, Y., Sakai, K., Kiwa, T., Tanikura, I. & Tsukada, K., Jul 8 2019, In : Sensors (Basel, Switzerland). 19, 13

Research output: Contribution to journalArticle

Open Access
steel structures
Magnetic sensors
Steel
Steel structures
inspection
2 Citations (Scopus)

High-sensitivity detection of metastatic breast cancer cells via terahertz chemical microscopy using aptamers

Hassan, E. M., Mohamed, A., DeRosa, M. C., Willmore, W. G., Hanaoka, Y., Kiwa, T. & Ozaki, T., May 15 2019, In : Sensors and Actuators, B: Chemical. 287, p. 595-601 7 p.

Research output: Contribution to journalArticle

breast
Microscopic examination
cancer
Cells
microscopy
1 Citation (Scopus)

Imaging of chemical reactions using a terahertz chemical microscope

Kiwa, T., Kamiya, T., Morimoto, T., Fujiwara, K., Maeno, Y., Akiwa, Y., Iida, M., Kuroda, T., Sakai, K., Nose, H., Kobayashi, M. & Tsukada, K., Jan 1 2019, In : Photonics. 6, 1, 10.

Research output: Contribution to journalArticle

Open Access
Aluminum Oxide
Silicon
Chemical reactions
chemical reactions
Lasers
1 Citation (Scopus)
Magnetometers
Iron oxides
iron oxides
magnetometers
Magnetization

Integrated Magnetic Sensor Probe and Excitation Wire for Nondestructive Detection of Submillimeter Defects

Tsukada, K., Shobu, H., Goda, Y., Kobara, T., Sakai, K., Kiwa, T. & Saari, M. M., Jan 1 2019, In : IEEE Magnetics Letters. 10, 8809197.

Research output: Contribution to journalArticle

Magnetic sensors
Tunnelling magnetoresistance
Wire
Defects
Steel
1 Citation (Scopus)

One-Minute Joule Annealing Enhances the Thermoelectric Properties of Carbon Nanotube Yarns via the Formation of Graphene at the Interface

Hada, M., Hasegawa, T., Inoue, H., Takagi, M., Omoto, K., Chujo, D., Iemoto, S., Kuroda, T., Morimoto, T., Hayashi, T., Iijima, T., Tokunaga, T., Ikeda, N., Fujimori, K., Itoh, C., Nishikawa, T., Yamashita, Y., Kiwa, T., Koshihara, S. Y., Maeda, S. & 1 others, Hayashi, Y., Jan 1 2019, (Accepted/In press) In : ACS Applied Energy Materials.

Research output: Contribution to journalArticle

Open Access
Carbon Nanotubes
Graphite
Graphene
Yarn
Carbon nanotubes

Using Magnetic Field Gradients to Shorten the Antigen-Antibody Reaction Time for a Magnetic Immunoassay

Tsukada, K., Tsunashima, K., Jinno, K., Hiramatsu, B., Takeuchi, S., Fujimoto, K., Sakai, K., Kiwa, T. & Saari, M. M., Jul 1 2019, In : IEEE Transactions on Magnetics. 55, 7, 8637765.

Research output: Contribution to journalArticle

Antigen-antibody reactions
C-Reactive Protein
Magnetic fields
Proteins
Neodymium
2018
1 Citation (Scopus)
High temperature superconductors
SQUIDs
high temperature superconductors
alternating current
catalysis
2 Citations (Scopus)

Development of a resonant excitation coil of AC magnetometer for evaluation of magnetic fluid

Saari, M. M., Suhaimi, N. S., Razali, S., Che Lah, N. A., Sakai, K., Kiwa, T. & Tsukada, K., Jan 1 2018, In : Journal of Telecommunication, Electronic and Computer Engineering. 10, 1-2, p. 127-130 4 p.

Research output: Contribution to journalArticle

Magnetic fluids
Magnetometers
Resonant circuits
Solenoids
Wire
2 Citations (Scopus)

Evaluation of the Magnetization Properties of Magnetic Nanoparticles in Serum Using HTS-SQUID

Isshiki, R., Nakamura, Y., Takeuchi, S., Hirata, T., Sakai, K., Kiwa, T. & Tsukada, K., Jun 1 2018, In : IEEE Transactions on Applied Superconductivity. 28, 4, 8264761.

Research output: Contribution to journalArticle

SQUIDs
serums
Magnetization
Nanoparticles
nanoparticles
2 Citations (Scopus)

Harmonics distribution of iron oxide nanoparticles solutions under diamagnetic background

Saari, M. M., Che Lah, N. A., Sakai, K., Kiwa, T. & Tsukada, K., Apr 15 2018, In : Journal of Magnetism and Magnetic Materials. 452, p. 145-152 8 p.

Research output: Contribution to journalArticle

Iron oxides
iron oxides
Magnetic moments
moment distribution
Nanoparticles
1 Citation (Scopus)
Hybrid sensors
Magnetic sensors
tunnels
Tunnels
Magnetic fields
1 Citation (Scopus)

Magnetic Detection of Steel Corrosion at a Buried Position Near the Ground Level Using a Magnetic Resistance Sensor

Tsukada, K., Tomioka, T., Wakabayashi, S., Sakai, K. & Kiwa, T., May 30 2018, (Accepted/In press) In : IEEE Transactions on Magnetics.

Research output: Contribution to journalArticle

Magnetic sensors
Steel corrosion
Steel structures
Corrosion
Sensors
6 Citations (Scopus)

PH measurements in 16-nL-volume solutions using terahertz chemical microscopy

Kiwa, T., Kamiya, T., Morimoto, T., Sakai, K. & Tsukada, K., Apr 2 2018, In : Optics Express. 26, 7, p. 8232-8238 7 p.

Research output: Contribution to journalArticle

microscopy
irradiation
electrodes
lasers

Sensitivity Improvement of Sample Rotation Measurement Method in HTS-SQUID Magnetometer for Diamagnetic Materials

Nakamura, Y., Isshiki, R., Takeuchi, S., Hirata, T., Sakai, K., Kiwa, T. & Tsukada, K., Jun 1 2018, In : IEEE Transactions on Applied Superconductivity. 28, 4, 1601604.

Research output: Contribution to journalArticle

Diamagnetic materials
High temperature superconductors
SQUIDs
Magnetometers
high temperature superconductors
8 Citations (Scopus)

Small Eddy Current Testing Sensor Probe Using a Tunneling Magnetoresistance Sensor to Detect Cracks in Steel Structures

Tsukada, K., Hayashi, M., Nakamura, Y., Sakai, K. & Kiwa, T., Jun 28 2018, (Accepted/In press) In : IEEE Transactions on Magnetics.

Research output: Contribution to journalArticle

Tunnelling magnetoresistance
Eddy current testing
Steel structures
Eddy currents
Cracks
2017
7 Citations (Scopus)
liquid nitrogen
harmonics
sensors
magnetic fields
low noise
3 Citations (Scopus)

Application of a HTS Coil with a Magnetic Sensor to Nondestructive Testing Using a Low-Frequency Magnetic Field

Matsunaga, Y., Isshiki, R., Nakamura, Y., Sakai, K., Kiwa, T. & Tsukada, K., Jun 1 2017, In : IEEE Transactions on Applied Superconductivity. 27, 4, 7750561.

Research output: Contribution to journalArticle

Magnetic sensors
Nondestructive examination
coils
Steel
Magnetic fields
12 Citations (Scopus)

Detection of Inner Cracks in Thick Steel Plates Using Unsaturated AC Magnetic Flux Leakage Testing with a Magnetic Resistance Gradiometer

Tsukada, K., Majima, Y., Nakamura, Y., Yasugi, T., Song, N., Sakai, K. & Kiwa, T., Nov 1 2017, In : IEEE Transactions on Magnetics. 53, 11, 7945278.

Research output: Contribution to journalArticle

Steel
Magnetic flux
Cracks
Testing
Magnetic leakage
1 Citation (Scopus)

High-Resolution Laser-Assisted Magnetic Nanoparticle Imaging Using a High-TC SQUID Magnetometer

Kiwa, T., Morita, K., Matsunaga, Y., Saari, M. M., Sakai, K. & Tsukada, K., Jun 1 2017, In : IEEE Transactions on Applied Superconductivity. 27, 4, 7828087.

Research output: Contribution to journalArticle

SQUIDs
Magnetometers
magnetometers
Imaging systems
Nanoparticles
1 Citation (Scopus)
SQUIDs
Magnetic variables measurement
magnetic measurement
alternating current
impedance
1 Citation (Scopus)
magnetometers
interference
1 Citation (Scopus)

Magnetic method for measuring moisture content using diamagnetic characteristics of water

Tsukada, K., Yasuaki, M., Yuta, N., Ryota, I., Kayo, F., Sakai, K. & Kiwa, T., Jan 1 2017, In : Measurement Science and Technology. 28, 1, 014010.

Research output: Contribution to journalArticle

Moisture Content
moisture content
Soil
soils
rice
2016

Chloride ion sensor using electrochemical impedance spectroscopy

Sugai, R., Sakai, K., Kiwa, T. & Tsukada, K., 2016, In : IEEJ Transactions on Sensors and Micromachines. 136, 4, p. 102-107 6 p.

Research output: Contribution to journalArticle

Electrochemical impedance spectroscopy
Sensors
Ions
Electrodes
Temperature

Compact AC/DC Susceptometer Using a High-Temperature Superconducting Quantum Interference Device

Takagi, R., Saari, M. M., Sakai, K., Kiwa, T. & Tsukada, K., Mar 1 2016, In : Electronics and Communications in Japan. 99, 3, p. 369-374 6 p.

Research output: Contribution to journalArticle

Quantum Interference
SQUIDs
alternating current
direct current
Magnetic Field
Superconducting devices
superconducting devices
High temperature superconductors
Magnetic variables measurement
current distribution
High temperature superconductors
SQUIDs
Magnetic variables measurement
current distribution
high temperature superconductors
21 Citations (Scopus)

Detection of Inner Corrosion of Steel Construction Using Magnetic Resistance Sensor and Magnetic Spectroscopy Analysis

Tsukada, K., Haga, Y., Morita, K., Song, N., Sakai, K., Kiwa, T. & Cheng, W., Jul 1 2016, In : IEEE Transactions on Magnetics. 52, 7, 7410073.

Research output: Contribution to journalArticle

Steel construction
Steel
Spectroscopy
Corrosion
Eddy current testing
6 Citations (Scopus)

Hybrid Type HTS-SQUID Magnetometer with Vibrating and Rotating Sample

Tsukada, K., Morita, K., Matsunaga, Y., Saari, M. M., Sakai, K. & Kiwa, T., Apr 1 2016, In : IEEE Transactions on Applied Superconductivity. 26, 3, 7412723.

Research output: Contribution to journalArticle

SQUIDs
Magnetometers
magnetometers
interference
Magnets

Improvement of sensitivity of a compact magnetometer by using HTS-SQUID with rotating sample

Hamasaki, D., Okamoto, N., Saari, M. M., Sakai, K., Kiwa, T. & Tsukada, K., Jan 1 2016, In : Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 194, 2, p. 9-14 6 p.

Research output: Contribution to journalArticle

SQUIDs
Magnetometers
Signal to noise ratio
Pickups
Inductance
3 Citations (Scopus)

Label-free detection of low-molecular-weight samples using a terahertz chemical microscope

Kuwana, T., Ogawa, M., Sakai, K., Kiwa, T. & Tsukada, K., Mar 14 2016, In : Applied Physics Express. 9, 4, p. 42401

Research output: Contribution to journalArticle

low molecular weights
Labels
Microscopes
Molecular weight
microscopes

Novel terahertz measurements systems born in Okayama

Kiwa, T., Oct 1 2016, In : Journal of the Institute of Electronics, Information and Communication Engineers. 99, 10, p. 975-979 5 p.

Research output: Contribution to journalArticle

2015
6 Citations (Scopus)

Automatic Scanning System for Back-Side Defect of Steel Structure Using Magnetic Flux Leakage Method

Sakai, K., Morita, K., Haga, Y., Kiwa, T., Inoue, K. & Tsukada, K., Nov 1 2015, In : IEEE Transactions on Magnetics. 51, 11, 7151805.

Research output: Contribution to journalArticle

Steel structures
Magnetic flux
Steel
Scanning
Defects
14 Citations (Scopus)
moment distribution
iron oxides
magnetometers
low concentrations
magnetic moments
1 Citation (Scopus)

Development of a planar type ion sensor for urine testing

Sakai, K., Yamamoto, T., Sugai, R., Kiwa, T. & Tsukada, K., Aug 1 2015, In : Sensor Letters. 13, 8, p. 706-710 5 p.

Research output: Contribution to journalArticle

urine
sensors
Sensors
Ions
Testing
7 Citations (Scopus)
SQUIDs
Magnetometers
Iron oxides
iron oxides
magnetometers

Impedance Evaluation of Hydrogen Sensor Using Ultrathin Platinum Film

Translated title of the contribution: Impedance Evaluation of Hydrogen Sensor Using Ultrathin Platinum FilmTakeichi, S., Ushita, Y., Sugai, R., Sakai, K., Kiwa, T. & Tsukada, K., 2015, In : Transactions of the Materials Research Society of Japan. 40, 1, p. 69-72 4 p.

Research output: Contribution to journalArticle

platinum
impedance
evaluation
sensors
impedance measurement
3 Citations (Scopus)

Ion transportation of electrolytes in a flow channel mapped by an HTS SQUID scanning system

Kiwa, T., Tanaka, K., Kasuya, S., Sakai, K. & Tsukada, K., Jun 1 2015, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6994213.

Research output: Contribution to journalArticle

SQUIDs
channel flow
Channel flow
Electrolytes
electrolytes
1 Citation (Scopus)

Moisture content evaluation using improved high-tc squid-based rotating-sample magnetometer

Sakai, K., Okamoto, N., Watanabe, Y., Saari, M. M., Kiwa, T. & Tsukada, K., Jun 1 2015, In : IEEE Transactions on Applied Superconductivity. 25, 3, 69268341.

Research output: Contribution to journalArticle

Magnetometers
magnetic signals
magnetometers
moisture content
Moisture
8 Citations (Scopus)

Optimization of an AC/DC High- Tc SQUID magnetometer detection unit for evaluation of magnetic nanoparticles in solution

Saari, M. M., Ishihara, Y., Tsukamoto, Y., Kusaka, T., Morita, K., Sakai, K., Kiwa, T. & Tsukada, K., Jun 1 2015, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6928410.

Research output: Contribution to journalArticle

SQUIDs
Magnetometers
magnetometers
alternating current
coils
2014
High temperature superconductors
SQUIDs
Magnetic fields
Pickups
Magnetic properties
2 Citations (Scopus)

DC current distribution mapping system of the solar panels using a HTS-SQUID gradiometer

Miyazaki, S., Kasuya, S., Saari, M. M., Sakai, K., Kiwa, T., Tsukamoto, A., Adachi, S., Tanabe, K. & Tsukada, K., 2014, In : Journal of Physics: Conference Series. 507, PART 4, 042026.

Research output: Contribution to journalArticle

gradiometers
current distribution
critical temperature
direct current
interference
2 Citations (Scopus)

Development of integrated AC-DC magnetometer using high-Tc SQUID for magnetic properties evaluation of magnetic nanoparticles in solution

Saari, M. M., Takagi, R., Kusaka, T., Ishihara, Y., Tsukamoto, Y., Sakai, K., Kiwa, T. & Tsukada, K., 2014, In : Journal of Physics: Conference Series. 507, PART 4, 042035.

Research output: Contribution to journalArticle

magnetometers
alternating current
critical temperature
direct current
magnetic properties

FET hydrogen sensor by direct heating of platinum metal gate for fast response time

Okuir, T., Usita, Y., Takeichi, S., Sakai, K., Kiwa, T. & Tsukada, K., 2014, In : IEEJ Transactions on Sensors and Micromachines. 134, 8, p. 264-269 6 p.

Research output: Contribution to journalArticle

Platinum metals
Field effect transistors
Heating
Hydrogen
Sensors

HTS-SQUIDを用いたサンプル回転方式小型磁化率計の高感度化

Translated title of the contribution: Improvement of Sensitivity for a Compact Magnetometer using HTS-SQUID with Rotating Sample濵﨑大地, 岡本直大, Saari, M. M., 堺健司, 紀和利彦 & 塚田啓二, 2014, In : IEEJ Transactions on Fundamentals and Materials. 134, 5, p. 347-351 5 p.

Research output: Contribution to journalArticle

SQUIDs
Magnetometers
Signal to noise ratio
Pickups
Inductance

HTS-SQUID を用いた試料回転式小型磁化率計の開発と応用展開

Translated title of the contribution: Development and Application of a Compact Rotating-sample Magnetometer Using HTS-SQUID堺健司, Mohd, M. S., 紀和利彦 & 塚田啓二, 2014, In : 低温工学. 49, 7, p. 352-358 7 p.

Research output: Contribution to journalArticle

magnetic signals
high temperature superconductors
magnetometers
interference
moisture content

Improvement of sensitivity for a compact magnetometer using HTS-SQUID with rotating sample

Hamasaki, D., Okamoto, N., Saari, M. M., Sakai, K., Kiwa, T. & Tsukada, K., 2014, In : IEEJ Transactions on Fundamentals and Materials. 134, 5, p. 347-351 5 p.

Research output: Contribution to journalArticle

SQUIDs
Magnetometers
Signal to noise ratio
Pickups
Inductance