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Research Output 2010 2019

  • 155 Citations
  • 7 h-Index
  • 35 Article
  • 16 Conference contribution
  • 1 Conference article
  • 1 Review article
2019

Design study of 10 mw rebco fully superconducting synchronous generator for electric aircraft

Komiya, M., Aikawa, T., Sasa, H., Miura, S., Iwakuma, M., Yoshida, T., Sasayama, T., Tomioka, A., Konno, M. & Izumi, T., Aug 1 2019, In : IEEE Transactions on Applied Superconductivity. 29, 5, 8675517.

Research output: Contribution to journalArticle

fly by wire control
Synchronous generators
radiant flux density
generators
Aircraft
1 Citation (Scopus)

Effects of size and anisotropy of magnetic nanoparticles associated with dynamics of easy axis for magnetic particle imaging

Ota, S., Matsugi, Y., Nakamura, T., Takeda, R., Takemura, Y., Kato, I., Nohara, S., Sasayama, T., Yoshida, T. & Enpuku, K., Mar 15 2019, In : Journal of Magnetism and Magnetic Materials. 474, p. 311-318 8 p.

Research output: Contribution to journalArticle

Anisotropy
Nanoparticles
harmonics
Imaging techniques
nanoparticles

Low-frequency eddy current testing using HTS coil driven by PWM inverter

Sasayama, T. & Enpuku, K., Jan 1 2019, In : International Journal of Applied Electromagnetics and Mechanics. 59, 4, p. 1275-1282 8 p.

Research output: Contribution to journalArticle

Eddy current testing
pulse duration modulation
eddy currents
Pulse width modulation
coils
Pickups
Magnetometers
inductance
Inductance
magnetometers

Optimal Frequency of Low-Frequency Eddy-Current Testing for Detecting Defects on the Backside of Thick Steel Plates

Yoshimura, W., Sasayama, T. & Enpuku, K., Jul 1 2019, In : IEEE Transactions on Magnetics. 55, 7, 8645817.

Research output: Contribution to journalArticle

Eddy current testing
Steel
Defects
Skin effect
Inspection

Three-dimensional detection of magnetic nanoparticles using a field-free line with weak field gradient and multiple pickup coils

Hamanaga, S., Yoshida, T., Sasayama, T., Elrefai, A. L. & Enpuku, K., Jan 1 2019, In : Japanese Journal of Applied Physics. 58, 6, 061001.

Research output: Contribution to journalArticle

Open Access
Pickups
coils
Nanoparticles
gradients
nanoparticles
2018
2 Citations (Scopus)

Detection of Slit Defects on Backside of Steel Plate Using Low-Frequency Eddy-Current Testing

Yoshimura, W., Tanaka, R., Sasayama, T. & Enpuku, K., Nov 1 2018, In : IEEE Transactions on Magnetics. 54, 11, 8405746.

Research output: Contribution to journalArticle

Eddy current testing
Steel
Defects
Eddy currents
Fluxes

Detection of slit defects on backside of steel plate using low-frequency eddy-current-testing

Yoshimura, W., Tanaka, R., Sasayama, T. & Enpuku, K., Oct 24 2018, 2018 IEEE International Magnetic Conference, INTERMAG 2018. Institute of Electrical and Electronics Engineers Inc., 8508192. (2018 IEEE International Magnetic Conference, INTERMAG 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Eddy current testing
Steel
eddy currents
slits
steels
3 Citations (Scopus)

Empirical expression for DC magnetization curve of immobilized magnetic nanoparticles for use in biomedical applications

Farag, A. L. E. M. M., Sasayama, T., Yoshida, T. & Enpuku, K., May 1 2018, In : AIP Advances. 8, 5, 056803.

Research output: Contribution to journalArticle

direct current
nanoparticles
magnetization
curves
simulation

Improving tip position estimation accuracy of gastric tube by compensating geomagnetic field with offset coils

Sasayama, T., Gotoh, Y. & Enpuku, K., Oct 24 2018, 2018 IEEE International Magnetic Conference, INTERMAG 2018. Institute of Electrical and Electronics Engineers Inc., 8508131. (2018 IEEE International Magnetic Conference, INTERMAG 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Magnetic sensors
geomagnetism
Permanent magnets
coils
tubes

Improving tip position-estimation performance of gastric tube by compensating geomagnetic field with offset coils

Sasayama, T., Gotoh, Y. & Enpuku, K., Nov 1 2018, In : IEEE Transactions on Magnetics. 54, 11, 8418311.

Research output: Contribution to journalArticle

Magnetic sensors
Magnetoresistance
Permanent magnets
Sensors
Error analysis
1 Citation (Scopus)

Low-noise magnetometer based on inductance modulation in high-critical-temperature superconductor coil

Enpuku, K., Matsuo, M., Yoshida, Y., Yamashita, S., Sasayama, T. & Yoshida, T., Jun 1 2018, In : Japanese Journal of Applied Physics. 57, 6, 060314.

Research output: Contribution to journalArticle

Magnetometers
inductance
Inductance
low noise
magnetometers
1 Citation (Scopus)

Magnetometer based on transfer and modulation of magnetic flux using high-critical-temperature superconductor coils

Enpuku, K., Matsuo, M., Yoshida, Y., Yamashita, S., Sasayama, T. & Yoshida, T., Jul 26 2018, In : Journal of Physics: Conference Series. 1054, 1, 012058.

Research output: Contribution to journalConference article

magnetometers
magnetic flux
critical temperature
coils
modulation
1 Citation (Scopus)

Three-dimensional imaging of magnetic nanoparticles using multiple pickup coils and field-free line

Muta, M., Hamanaga, S., Tanaka, N., Sasayama, T., Yoshida, T. & Enpuku, K., Feb 1 2018, In : Japanese Journal of Applied Physics. 57, 2, 023002.

Research output: Contribution to journalArticle

Pickups
coils
Nanoparticles
Imaging techniques
nanoparticles

Three-Dimensional Magnetic Particle Imaging Utilizing Multiple Pickup Coils and Field-Free Line

Muta, M., Tsujita, Y., Matsuo, M., Sasayama, T., Yoshida, T. & Enpuku, K., Mar 9 2018, 2017 16th International Superconductive Electronics Conference, ISEC 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-January. p. 1-3 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pickups
coils
Nanoparticles
Imaging techniques
nanoparticles
2017
2 Citations (Scopus)

A Gastric Tube Monitoring System for Clinical Applications

Sasayama, T., Gotoh, Y. & Enpuku, K., Nov 1 2017, In : IEEE Transactions on Magnetics. 53, 11, 7946121.

Research output: Contribution to journalArticle

Inverse problems
Permanent magnets
Tablets
Monitoring
Sensors
6 Citations (Scopus)

Biosensing utilizing magnetic markers and superconducting quantum interference devices

Enpuku, K., Tsujita, Y., Nakamura, K., Sasayama, T. & Yoshida, T., Mar 17 2017, In : Superconductor Science and Technology. 30, 5, 053002.

Research output: Contribution to journalReview article

SQUIDs
markers
interference
Remanence
Washing

Development and evaluation of tip position estimation system of gastric tube for practical applications

Sasayama, T., Gotoh, Y. & Enpuku, K., Aug 10 2017, 2017 IEEE International Magnetics Conference, INTERMAG 2017. Institute of Electrical and Electronics Engineers Inc., 8007961

Research output: Chapter in Book/Report/Conference proceedingConference contribution

stomach
nutrients
Nutrients
tubes
evaluation
12 Citations (Scopus)

Effect of alignment of easy axes on dynamic magnetization of immobilized magnetic nanoparticles

Yoshida, T., Matsugi, Y., Tsujimura, N., Sasayama, T., Enpuku, K., Viereck, T., Schilling, M. & Ludwig, F., Apr 1 2017, In : Journal of Magnetism and Magnetic Materials. 427, p. 162-167 6 p.

Research output: Contribution to journalArticle

Magnetization
alignment
Nanoparticles
nanoparticles
magnetization
1 Citation (Scopus)

Magnetic Core-Size Distribution of Magnetic Nanoparticles Estimated from Magnetization, AC Susceptibility, and Relaxation Measurements

Farag, A. L. E. M. M., Sasayama, T., Yoshida, T. & Enpuku, K., Nov 1 2017, In : IEEE Transactions on Magnetics. 53, 11, 7917306.

Research output: Contribution to journalArticle

Magnetic cores
Magnetization
Nanoparticles
Magnetic relaxation
Magnetic relaxation measurement

Magnetic core-size distribution of magnetic nanoparticles estimated from magnetization, AC susceptibility and relaxation measurements

Elrefai, A. L., Sasayama, T., Yoshida, T. & Enpuku, K., Aug 10 2017, 2017 IEEE International Magnetics Conference, INTERMAG 2017. Institute of Electrical and Electronics Engineers Inc., 8007882

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Magnetic cores
magnetic cores
immunoassay
hyperthermia
Magnetization
3 Citations (Scopus)

Magnetometer exploiting inductance modulation in coils made of high-critical-temperature superconductor

Enpuku, K., Matsuo, M., Sasayama, T. & Yoshida, T., Nov 1 2017, In : Applied Physics Express. 10, 11, 113101.

Research output: Contribution to journalArticle

Magnetometers
inductance
Inductance
magnetometers
Superconducting materials

Properties of signal caused by the Cracks on the back surface of steel plate in low frequency eddy current testing

Tanaka, R., Sasayama, T., Matsuo, M. & Enpuku, K., Aug 10 2017, 2017 IEEE International Magnetics Conference, INTERMAG 2017. Institute of Electrical and Electronics Engineers Inc., 8007648. (2017 IEEE International Magnetics Conference, INTERMAG 2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Eddy current testing
Magnetic permeability
Ferromagnetic materials
ferromagnetic materials
Steel
1 Citation (Scopus)
Nanoparticles
harmonics
nanoparticles
Hysteresis loops
Magnetic moments
5 Citations (Scopus)

Three-dimensional magnetic nanoparticle imaging using small field gradient and multiple pickup coils

Sasayama, T., Tsujita, Y., Morishita, M., Muta, M., Yoshida, T. & Enpuku, K., Apr 1 2017, In : Journal of Magnetism and Magnetic Materials. 427, p. 144-150 7 p.

Research output: Contribution to journalArticle

Pickups
coils
Nanoparticles
Imaging techniques
gradients
2016
1 Citation (Scopus)

Biological applications of magnetic nanoparticles-for magnetic immunoassay and magnetic particle imaging

Yoshida, T., Sasayama, T. & Enpuku, K., Jan 1 2016, Magnetic Materials Processes and Devices 14. Bonhote, C., Gatzen, H. H., Kitamoto, Y., Zangari, G. & Osaka, T. (eds.). 2 ed. Electrochemical Society Inc., p. 39-47 9 p. (ECS Transactions; vol. 75, no. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nanoparticles
Imaging techniques
Liquids
14 Citations (Scopus)

Estimation of magnetic moment and anisotropy energy of magnetic markers for biosensing application

Enpuku, K., Sasayama, T. & Yoshida, T., May 14 2016, In : Journal of Applied Physics. 119, 18, 184902.

Research output: Contribution to journalArticle

markers
magnetic moments
anisotropy
energy
curves
1 Citation (Scopus)

Experimental and simulation study on inductance and equivalent resistance using equivalent circuit model and finite element method

Sasayama, T., Yanamoto, Y., Funaji, S. & Ao, T., Jan 1 2016, In : IEEJ Journal of Industry Applications. 5, 5, p. 392-397 6 p.

Research output: Contribution to journalArticle

Equivalent circuits
Inductance
Induction heating
Finite element method
5 Citations (Scopus)

Improved liquid-phase detection of biological targets based on magnetic markers and high-critical-temperature superconducting quantum interference device

Ura, M., Noguchi, K., Ueoka, Y., Nakamura, K., Sasayama, T., Yoshida, T. & Enpuku, K., Jun 1 2016, In : IEICE Transactions on Electronics. E99C, 6, p. 669-675 7 p.

Research output: Contribution to journalArticle

SQUIDs
Biotin
Agglomeration
Streptavidin
Liquids
1 Citation (Scopus)

Measurement of iron-plate thickness using HTS coil

Ishida, T., Sasayama, T., Matsuo, M. & Enpuku, K., Jan 14 2016, 2015 15th International Superconductive Electronics Conference, ISEC 2015. Institute of Electrical and Electronics Engineers Inc., 7383469

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Iron
Eddy current testing
Temperature
Skin effect
Inductance
1 Citation (Scopus)

New detection method of biological targets based on HTS SQUID and magnetic marker

Ura, M., Ueoka, Y., Noguchi, K., Nakamura, K., Sasayama, T., Yoshida, T. & Enpuku, K., Jan 14 2016, 2015 15th International Superconductive Electronics Conference, ISEC 2015. Institute of Electrical and Electronics Engineers Inc., 7383474. (2015 15th International Superconductive Electronics Conference, ISEC 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

SQUIDs
Biotin
Agglomeration
Suspensions
Polymers
7 Citations (Scopus)

Thickness Measurement of an Iron Plate Using Low-Frequency Eddy Current Testing with an HTS Coil

Sasayama, T., Ishida, T., Matsuo, M. & Enpuku, K., Aug 1 2016, In : IEEE Transactions on Applied Superconductivity. 26, 5, 7420626.

Research output: Contribution to journalArticle

Eddy current testing
Thickness measurement
eddy currents
coils
Iron
2015
13 Citations (Scopus)
moment distribution
iron oxides
magnetometers
low concentrations
magnetic moments

Comparison of experiment and simulation results for inductance and equivalent resistance obtained using multi-port transformer model and FEM

Sasayama, T., Yanamoto, Y., Funaji, S. & Ao, T., Jan 1 2015, 2015 IEEE International Magnetics Conference, INTERMAG 2015. Institute of Electrical and Electronics Engineers Inc., 7156803

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Induction heating
Inductance
Finite element method
Heating
Experiments
11 Citations (Scopus)
normal density functions
nanoparticles
curves
magnetic moments
liquid phases
1 Citation (Scopus)

Evaluation of complex harmonic signals from magnetic nanoparticles for magnetic particle imaging

Yoshida, T., Tsujimura, N., Tanabe, K., Sasayama, T. & Enpuku, K., Jul 14 2015, 2015 IEEE International Magnetics Conference, INTERMAG 2015. Institute of Electrical and Electronics Engineers Inc., 7157571

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nanoparticles
Imaging techniques
Drug delivery
Spatial distribution

Evaluation of Complex Harmonic Signals from Magnetic Nanoparticles for Magnetic Particle Imaging

Yoshida, T., Tsujimura, N., Tanabe, K., Sasayama, T. & Enpuku, K., Nov 1 2015, In : IEEE Transactions on Magnetics. 51, 11, 7118196.

Research output: Contribution to journalArticle

Nanoparticles
Imaging techniques
Relaxation time
Energy barriers
Magnetic moments
1 Citation (Scopus)

Hysteresis loss of fractionated magnetic nanoparticles for hyperthermia application

Sasayama, T., Yoshida, T., Tanabe, K., Tsujimura, N. & Enpuku, K., Jul 14 2015, 2015 IEEE International Magnetics Conference, INTERMAG 2015. Institute of Electrical and Electronics Engineers Inc., 7157196

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hysteresis
Nanoparticles
Hysteresis loops
Tumors
Magnetic fields
3 Citations (Scopus)

Hysteresis Loss of Fractionated Magnetic Nanoparticles for Hyperthermia Application

Sasayama, T., Yoshida, T., Tanabe, K., Tsujimura, N. & Enpuku, K., Nov 1 2015, In : IEEE Transactions on Magnetics. 51, 11, 7113867.

Research output: Contribution to journalArticle

Hysteresis
Nanoparticles
Hysteresis loops
Magnetic moments
Tumors
2 Citations (Scopus)

Improving Estimation Accuracy of Nasogastric Tube Tip Position Using Predata

Sasayama, T., Gotoh, Y. & Enpuku, K., Nov 1 2015, In : IEEE Transactions on Magnetics. 51, 11, 7115141.

Research output: Contribution to journalArticle

Sensors
Nutrition
Error analysis
Nutrients
Magnets

Improving estimation accuracy of nasogastric tube tip position using pre data

Sasayama, T., Gotoh, Y. & Enpuku, K., Jul 14 2015, 2015 IEEE International Magnetics Conference, INTERMAG 2015. Institute of Electrical and Electronics Engineers Inc., 7157195. (2015 IEEE International Magnetics Conference, INTERMAG 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nutrients
Nutrition
Permanent magnets
Sensors

Measurement of hysteresis loop at the tip of the teeth of an inverter-driven squirrel-cage induction motor

Saito, K., Sasayama, T. & Nakano, M., Jan 1 2015, 2015 IEEE International Magnetics Conference, INTERMAG 2015. Institute of Electrical and Electronics Engineers Inc., 7157771

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Squirrel cage motors
Hysteresis loops
Induction motors
Magnetic flux
Pulse width modulation
5 Citations (Scopus)

Narrowband magnetic nanoparticle imaging using cooled pickup coil and gradient field

Enpuku, K., Miyazaki, T., Morishita, M., Tsujita, Y., Matsuo, M., Bai, S., Sasayama, T. & Yoshida, T., Jan 1 2015, In : Japanese Journal of Applied Physics. 54, 5, 057002.

Research output: Contribution to journalArticle

Pickups
narrowband
coils
Nanoparticles
Imaging techniques
3 Citations (Scopus)

Narrowband Magnetic Particle Imaging Utilizing Electric Scanning of Field Free Point

Bai, S., Hirokawa, A., Tanabe, K., Sasayama, T., Yoshida, T. & Enpuku, K., Nov 1 2015, In : IEEE Transactions on Magnetics. 51, 11, 7113848.

Research output: Contribution to journalArticle

Nanoparticles
Scanning
Imaging techniques
Pickups
Signal detection
8 Citations (Scopus)

Theoretical and numerical examination of equivalent resistances in zone-control induction heating system

Sasayama, T., Yanamoto, Y., Funaji, S. & Ao, T., Jan 1 2015, In : IEEJ Journal of Industry Applications. 4, 1, p. 67-73 7 p.

Research output: Contribution to journalArticle

Induction heating
Inductance
Eddy currents
Networks (circuits)
2014
6 Citations (Scopus)

Application of minimum variance beamformer for estimation of tip position of a nasogastric tube

Sasayama, T., Gotoh, Y. & Enpuku, K., Nov 1 2014, In : IEEE Transactions on Magnetics. 50, 11, 6971254.

Research output: Contribution to journalArticle

Magnets
Brain
Liquids
Costs
3 Citations (Scopus)

Experimental study on effect of load on iron loss of an electrical steel sheet under PWM inverter excitation

Sasayama, T., Morita, M. & Nakano, M., Nov 1 2014, In : IEEE Transactions on Magnetics. 50, 11, 6971392.

Research output: Contribution to journalArticle

Steel sheet
Pulse width modulation
Iron
Power amplifiers
Networks (circuits)
7 Citations (Scopus)
narrowband
Nanoparticles
harmonics
Imaging techniques
nanoparticles
2013
7 Citations (Scopus)

Optimization of 3-D magnetic circuit of linear oscillatory actuator for diaphragm blower

Takahashi, N., Okamura, S., Sasayama, T. & Yamagami, Y., 2013, In : IEEE Transactions on Magnetics. 49, 5, p. 2125-2128 4 p., 6514766.

Research output: Contribution to journalArticle

Linear actuators
Blowers
Magnetic circuits
Diaphragms
Multiobjective optimization
12 Citations (Scopus)

Parallelization of finite element analysis of nonlinear magnetic fields using GPU

Okimura, T., Sasayama, T., Takahashi, N. & Ikuno, S., May 22 2013, In : IEEE Transactions on Magnetics. 49, 5, p. 1557-1560 4 p., 6514787.

Research output: Contribution to journalArticle

Conjugate gradient method
Magnetic fields
Finite element method
Program processors
Graphics processing unit