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• Article

  A 13.56 MHz antenna design with the efficiency improvement for the wireless power transfer system

  Cuong, N. T., Trung, N. K. & Akatsu, K., 2020, In: International Journal of Engineering Research and Technology. 13, 7, p. 1735-1741 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Inductive power transmission
  • Antennas
  • Electric vehicles
  • Magnetic resonance
  • Transceivers

• Advanced torque and current control techniques for pmsms with a real-time simulator installed behavior motor model

  Tanabe, R. & Akatsu, K., 2016, In: IEEJ Journal of Industry Applications. 5, 2, p. 167-173 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Torque control
  • Electric current control
  • Simulators
  • Synchronous motors
  • Permanent magnets
  10 Citations (Scopus)

• A novel reluctance magnetic gear for high-speed motor

  Aiso, K., Akatsu, K. & Aoyama, Y., 2019 May 1, In: IEEE Transactions on Industry Applications. 55, 3, p. 2690-2699 10 p., 28.

  Research output: Contribution to journal › Article › peer-review

  • Magnets
  • Rotors
  • Eddy currents
  • Strength of materials
  • Power transmission
  8 Citations (Scopus)

• A study of dual winding method for compound magnetomotive force motor

  Hijikata, H., Shigeta, T., Kariya, N., Akatsu, K. & Kato, T., 2013 Nov 11, In: IEEJ Transactions on Industry Applications. 133, 10, p. 986-994 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Magnets
  • Poles
  3 Citations (Scopus)

• A study on improvement in permanent magnet synchronous motor with high permeability magnet

  Miyamasu, M., Nakamura, Y., Akatsu, K. & Masuzawa, M., 2013 Oct 7, In: IEEJ Transactions on Industry Applications. 133, 9, p. 943-951 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Magnets
  • Synchronous motors
  • Permanent magnets
  • Eddy currents
  • Fluxes
  3 Citations (Scopus)

• Attenuate Influence of Parasitic Elements in 13.56-MHz Inverter for Wireless Power Transfer Systems

  Trung, N. K., Ogata, T., Tanaka, S. & Akatsu, K., 2018 Apr 1, In: IEEE Transactions on Power Electronics. 33, 4, p. 3218-3231 14 p., 7934398.

  Research output: Contribution to journal › Article › peer-review

  • Inductive power transmission
  • Printed circuit boards
  • Networks (circuits)
  • Damping
  • Signal interference
  7 Citations (Scopus)

• Basic properties of an axial-type switched reluctance motor

  Arihara, H. & Akatsu, K., 2013 Jan 28, In: IEEE Transactions on Industry Applications. 49, 1, p. 59-65 7 p., 6361291.

  Research output: Contribution to journal › Article › peer-review

  • Torque
  • Air
  • Inductance
  • Finite element method
  • Experiments
  29 Citations (Scopus)

• Behavior modeling of permanent magnet synchronous motors using flux linkages for coupling with circuit simulation

  Kaimori, H. & Akatsu, K., 2018 Jan 1, In: IEEJ Journal of Industry Applications. 7, 1, p. 56-63 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Coupled circuits
  • Circuit simulation
  • Synchronous motors
  • Permanent magnets
  • Fluxes
  8 Citations (Scopus)

• Coupled analysis technique involving magnetic-field-control/circuit simulation and loss estimation for permanent magnet synchronous machine

  Narita, K., Yamada, T., Sakashita, Y. & Akatsu, K., 2011 Dec 1, In: IEEJ Transactions on Industry Applications. 131, 11, p. 1309-1315+7

  Research output: Contribution to journal › Article › peer-review

  • Circuit simulation
  • Permanent magnets
  • Magnetic fields
  • Iron
  • Fluxes
  7 Citations (Scopus)

• Coupled analysis technique involving magnetic-field-control/circuit simulation and loss estimation for permanent magnet synchronous machine

  Narita, K., Yamada, T., Sakashita, Y. & Akatsu, K., 2013 May 1, In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 183, 3, p. 9-16 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Circuit simulation
  • Permanent magnets
  • Magnetic fields
  • Iron
  • Fluxes

• Design and evaluation of a variable-flux flux-intensifying interior permanent-magnet machine

  Limsuwan, N., Kato, T., Akatsu, K. & Lorenz, R. D., 2014 Jan 1, In: IEEE Transactions on Industry Applications. 50, 2, p. 1015-1024 10 p., 6560407.

  Research output: Contribution to journal › Article › peer-review

  • Permanent magnets
  • Fluxes
  • Magnets
  • Magnetization
  • Torque
  127 Citations (Scopus)

• Design of axial type switched reluctance motor considering magnetic characteristics of soft magnetic composite material

  Aiso, K. & Akatsu, K., 2016, In: IEEJ Transactions on Industry Applications. 136, 9, p. 664-665 2 p.

  Research output: Contribution to journal › Article › peer-review

  • Magnetic materials
  • Fluxes
  • Composite materials
  1 Citation (Scopus)

• Design theory of a variable characteristic motor using compound magnetomotive forces

  Kato, T., Akatsu, K., Shigeta, T., Nakano, M., Tsukamoto, M. & Arimitsu, M., 2011 Sep 26, In: IEEJ Transactions on Industry Applications. 131, 8, p. 1049-1058 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Electric current control
  • Magnets
  • Synchronous motors
  • Permanent magnets
  • Poles
  2 Citations (Scopus)

• Efficiency comparison between brushless DC motor and brushless AC motor considering driving method and mAChine design

  Miyamasu, M. & Akatsu, K., 2013, In: IEEJ Journal of Industry Applications. 2, 1, p. 79-86 8 p.

  Research output: Contribution to journal › Article › peer-review

  • AC motors
  • Brushless DC motors
  • Machine design
  • Synchronous motors
  • Pulse width modulation
  8 Citations (Scopus)

• Investigation of locked rotor test for estimation of magnet PWM carrier eddy current loss in synchronous machines

  Yamazaki, K., Fukuoka, T., Akatsu, K., Nakao, N. & Ruderman, A., 2012 Oct 30, In: IEEE Transactions on Magnetics. 48, 11, p. 3327-3330 4 p., 6333012.

  Research output: Contribution to journal › Article › peer-review

  • Eddy currents
  • Magnets
  • Pulse width modulation
  • Rotors
  • Finite element method
  21 Citations (Scopus)

• MATRIX motor with individual control capability for iron loss suppression under flux weakening control

  Hijikata, H., Akatsu, K., Miyama, Y., Arita, H. & Daikoku, A., 2016, In: IEEJ Journal of Industry Applications. 5, 2, p. 176-183 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Iron
  • Fluxes
  • Synchronous motors
  • Permanent magnets
  • Stators
  5 Citations (Scopus)

• Multi-phase inverter-fed MATRIX motor for high efficiency driving

  Hijikata, H., Sakai, Y., Akatsu, K., Miyama, Y., Arita, H. & Daikoku, A., 2018 Jan 1, In: IEEJ Transactions on Industry Applications. 138, 3, p. 257-264 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Iron
  • Fluxes
  • Torque
  • Synchronous motors
  • Permanent magnets
  1 Citation (Scopus)

• Principle and basic characteristic of MATRIX motor with variable parameters achieved through arbitrary winding connections

  Hijikata, H. & Akatsu, K., 2013, In: IEEJ Journal of Industry Applications. 2, 6, p. 283-291 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Synchronous motors
  • Permanent magnets
  • Power electronics
  • Electronic equipment
  • Torque
  6 Citations (Scopus)

• Rare earth reduction using a novel variable magnetomotive force flux-intensified IPM machine

  Kato, T., Limsuwan, N., Yu, C. Y., Akatsu, K. & Lorenz, R. D., 2014 Jan 1, In: IEEE Transactions on Industry Applications. 50, 3, p. 1748-1756 9 p., 6607140.

  Research output: Contribution to journal › Article › peer-review

  • Rare earths
  • Permanent magnets
  • Magnets
  • Fluxes
  • Dysprosium
  75 Citations (Scopus)

• Secondary resistive losses with high-frequency injection-based self-sensing in IPM machines

  Limsuwan, N., Kato, T., Yu, C. Y., Tamura, J., Reigosa, D. D., Akatsu, K. & Lorenz, R. D., 2013 Aug 5, In: IEEE Transactions on Industry Applications. 49, 4, p. 1499-1507 9 p., 6491469.

  Research output: Contribution to journal › Article › peer-review

  • Permanent magnets
  • Magnets
  • Eddy currents
  • Iron
  • Fluxes
  20 Citations (Scopus)

• Selection method of controller gains for position sensorless control of IPMSM drives

  Lee, D. & Akatsu, K., 2019, In: IEEJ Journal of Industry Applications. 8, 4, p. 720-726 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Sensorless control
  • Synchronous motors
  • Permanent magnets
  • Electromotive force
  • Rotors
  1 Citation (Scopus)

• Special Issue on Power Electronics

  Itoh, J. & Akatsu, K., 2012, In: IEEJ Transactions on Industry Applications. 132, 10, p. 13 1 p.

  Research output: Contribution to journal › Article › peer-review

• Suppressing pulsating torques: Torque ripple control for synchronous motors

  Nakao, N. & Akatsu, K., 2014 Nov 1, In: IEEE Industry Applications Magazine. 20, 6, p. 33-44 12 p., 6891141.

  Research output: Contribution to journal › Article › peer-review

  • Torque control
  • Synchronous motors
  • Torque
  • Analytical models
  • Permanent magnets
  70 Citations (Scopus)

• Torque ripple control based on instantaneous torque estimation in PMSMs

  Nakao, N. & Akatsu, K., 2011 Dec 1, In: IEEJ Transactions on Industry Applications. 131, 9, p. 1120-1127+4

  Research output: Contribution to journal › Article › peer-review

  • Torque control
  • Synchronous motors
  • Permanent magnets
  • Feedforward control
  • Torque
  8 Citations (Scopus)

• Variable Magnetization Machine in Electrified Vehicle Application

  Fukushige, T., Kato, T., Akatsu, K. & Lorenz, R. D., 2016 Nov 1, In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 197, 3, p. 67-75 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Magnetization
  • Rotors
  • Magnetic circuits
  • Magnets
  • Electric vehicles

• Vector control specialized for switched reluctance motor drives

  Nakao, N. & Akatsu, K., 2014 Jan 1, In: IEEJ Transactions on Industry Applications. 134, 12, p. 1006-1015 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Torque
  • Torque control
  • Electric current control
  • Control theory
  • Magnetic fields
  4 Citations (Scopus)

• Vector control specialized for switched reluctance motor drives

  Nakao, N. & Akatsu, K., 2016 Jan 1, In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 194, 2, p. 24-36 13 p.

  Research output: Contribution to journal › Article › peer-review

  • Torque
  • Torque control
  • Electric current control
  • Control theory
  • Magnetic fields
  2 Citations (Scopus)

• Vibration Reduction by Applying Carrier Phase-Shift PWM on Dual Three-Phase Winding Permanent-Magnet Synchronous Motor

  Miyama, Y., Ishizuka, M., Kometani, H. & Akatsu, K., 2018 Aug 1, (Accepted/In press) In: IEEE Transactions on Industry Applications.

  Research output: Contribution to journal › Article › peer-review

  • Synchronous motors
  • Pulse width modulation
  • Permanent magnets
  • Vector spaces
  • Poles
  19 Citations (Scopus)

• 可変磁力モータの着磁制御による高速領域電圧抑制手法及び車両のトルク脈動に関する考察

  Sasaki, K., Gagas, B. S., Inoue, K., Fukushige, T., Kato, T., Akatsu, K. & Lorenz, R. D., 2019 Jan 1, In: IEEJ Transactions on Industry Applications. 139, 6, p. 550-557 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Magnetization
  • Fluxes
  • Torque
  • Permanent magnets
  • Trajectories

• 電動工具用自己冷却 SRM の提案と実機特性

  Koinuma, K. & Akatsu, K., 2020 Nov 1, In: IEEJ Transactions on Industry Applications. 140, 11, p. 826-833 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Hand tools
  • Cooling
  • Brushless DC motors
  • Torque
  • Fans
• Comment/debate

  IEEJ Industry applications society news letter let's enjoy "globalization".

  Akatsu, K., 2019, In: IEEJ Transactions on Industry Applications. 139, 10, p. 1 1 p.

  Research output: Contribution to journal › Comment/debate › peer-review

  Open Access
• Conference article

  Variable characteristic permanent magnet motor for automobile application

  Kato, T., Fukushige, T., Akatsu, K. & Lorenz, R., 2014 Jan 1, In: SAE Technical Papers. 1

  Research output: Contribution to journal › Conference article › peer-review

  • Magnetization
  • Automobiles
  • Permanent magnets
  • Magnets
  • Fluxes
  10 Citations (Scopus)
• Conference contribution

  5-phase double winding PMSM with integrated SiC inverter for In-Wheel Motor

  Fukuda, K. & Akatsu, K., 2019 Aug, 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019. Institute of Electrical and Electronics Engineers Inc., 8921453. (2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Permanent Magnet Synchronous Motor
  • Inverter
  • Wheel
  • Wheels
  • Torque
  1 Citation (Scopus)

• A 3^rd Harmonic Current Control of the Open-Winding Permanent Magnet Synchronous Motor for the Torque Ripple Reduction

  Honda, K. & Akatsu, K., 2019 Nov, 2019 IEEE 4th International Future Energy Electronics Conference, IFEEC 2019. Institute of Electrical and Electronics Engineers Inc., 9014989. (2019 IEEE 4th International Future Energy Electronics Conference, IFEEC 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Electric current control
  • Synchronous motors
  • Permanent magnets
  • Torque
  • Poles

• A basic study of MATRIX motor

  Hijikata, H. & Akatsu, K., 2011 Nov 28, IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings. p. 3285-3290 6 p. 6064212. (IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Semiconductor switches
  • Switches
  6 Citations (Scopus)

• A design method of switched reluctance motor for automobile auxiliary motors driven by a voltage single pulse drive

  Aiso, K. & Akatsu, K., 2016 Jan 18, 2015 18th International Conference on Electrical Machines and Systems, ICEMS 2015. Institute of Electrical and Electronics Engineers Inc., p. 1817-1823 7 p. 7385336

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Automobiles
  • Electromotive force
  • Torque
  • Finite element method
  • Temperature
  1 Citation (Scopus)

• A drive system of PM motor using Energy Harvesting

  Takahashi, T. & Akatsu, K., 2012, Conference Proceedings - 2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012. p. 2384-2389 6 p. 6259228. (Conference Proceedings - 2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012; vol. 4).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Energy harvesting
  • Hot Temperature
  • Demagnetization
  • Networks (circuits)
  2 Citations (Scopus)

• Advanced torque and current control techniques for PMSMs with a real-time simulator installed behavior motor model

  Tanabe, R. & Akatsu, K., 2014 Jan 1, 2014 International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014. IEEE Computer Society, p. 1234-1241 8 p. 6869744. (2014 International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Torque control
  • Electric current control
  • Synchronous motors
  • Permanent magnets
  • Simulators

• Advanced torque control of permanent magnet synchronous motor using finite element anasysis based motor model with a real-time simulator

  Tanabe, R. & Akatsu, K., 2016 Jan 25, IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society. Institute of Electrical and Electronics Engineers Inc., p. 4430-4435 6 p. 7392789

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Torque control
  • Synchronous motors
  • Permanent magnets
  • Simulators
  • Torque
  1 Citation (Scopus)

• Air-Cooled Multi-Phase Dual-Winding In-Wheel Motor Integrated with Ultra Small SiC Module

  Akatsu, K. & Tanimoto, S., 2020 Oct 11, ECCE 2020 - IEEE Energy Conversion Congress and Exposition. Institute of Electrical and Electronics Engineers Inc., p. 41-46 6 p. 9236414. (ECCE 2020 - IEEE Energy Conversion Congress and Exposition).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Wheel
  • Wheels
  • Inverter
  • Module
  • Cooling

• A Method of Torque Ripple Reduction by Using Harmonic Current Injection in PMSM

  Nishio, T., Ryosuke, Y., Masahiko, K. & Akatsu, K., 2019 Nov, 2019 IEEE 4th International Future Energy Electronics Conference, IFEEC 2019. Institute of Electrical and Electronics Engineers Inc., 9014937. (2019 IEEE 4th International Future Energy Electronics Conference, IFEEC 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Permanent magnets
  • Torque
  • Saturation magnetization
  • Magnets
  • Traction motors
  2 Citations (Scopus)

• A method to suppress vibration due to fabrication tolerance by using triple three-phase winding motor

  Yang, K., Akatsu, K., Miyama, Y. & Okazaki, K., 2019 May, 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019. Institute of Electrical and Electronics Engineers Inc., p. 1863-1868 6 p. 8785114. (2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Fabrication
  • Degradation
  • Permanent magnets
  • Stators
  • Compensation and Redress

• An approach to generate high reluctance torque in an inset-type PMSM by square current excitation

  Miyamasu, M. & Akatsu, K., 2012 Dec 1, PECon 2012 - 2012 IEEE International Conference on Power and Energy. p. 440-445 6 p. 6450253. (PECon 2012 - 2012 IEEE International Conference on Power and Energy).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Synchronous motors
  • Permanent magnets
  • Torque
  • Magnets
  • Finite element method
  3 Citations (Scopus)

• A new motor with stator magnet using the magnetization reversal technique

  Yamada, Y. & Akatsu, K., 2016 Nov 2, Proceedings - 2016 22nd International Conference on Electrical Machines, ICEM 2016. Institute of Electrical and Electronics Engineers Inc., p. 60-65 6 p. 7732506

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Magnetization reversal
  • Magnets
  • Stators
  • Magnetic fields
  • Poles
  4 Citations (Scopus)

• A new SRM drive method by using current source inverter

  Ando, G. & Akatsu, K., 2011 Aug 31, 8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia. p. 116-123 8 p. 5944559. (8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Networks (circuits)
  • Clamping devices
  • Switches
  2 Citations (Scopus)

• An Improved Position Sensor Fault Detection and Algorithm Transition Using Adaptive Threshold for Sensorless Control of IPMSM

  Lee, D. & Akatsu, K., 2019 Oct, Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society, p. 910-915 6 p. 8927158. (IECON Proceedings (Industrial Electronics Conference); vol. 2019-October).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Sensorless control
  • Deceleration
  • Synchronous motors
  • Fault detection
  • Permanent magnets

• An improved speed and position estimator for transient performance of back-EMF self-sensing for IPMSM

  Lee, D. & Akatsu, K., 2018 Dec 26, Proceedings: IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society. Institute of Electrical and Electronics Engineers Inc., p. 397-402 6 p. 8591825. (Proceedings: IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Permanent Magnet Synchronous Motor
  • Sensing
  • Electromotive force
  • Synchronous motors
  • Permanent magnets

• An optimized design of high-efficiency switched reluctance motor with single-phase input operation

  Yoneoka, Y. & Akatsu, K., 2011 Dec 16, 2011 International Conference on Electrical Machines and Systems, ICEMS 2011. 6073342. (2011 International Conference on Electrical Machines and Systems, ICEMS 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Diodes
  • Specifications
  • Finite element method
  3 Citations (Scopus)

• A novel flux switching magnetic gear for high speed motor system

  Aiso, K., Akatsu, K. & Aoyama, Y., 2018 Dec 26, Proceedings: IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society. Institute of Electrical and Electronics Engineers Inc., p. 337-342 6 p. 8591753. (Proceedings: IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • High Speed
  • Fluxes
  • Torque
  • Rotor
  • Strength of materials
  1 Citation (Scopus)

• A Novel Magnetic Multiple Spur Gear for High Speed Motor System

  Aiso, K., Akatsu, K. & Aoyama, Y., 2018 Dec 3, 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018. Institute of Electrical and Electronics Engineers Inc., p. 3310-3316 7 p. 8557627

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  • Spur gears
  • High Speed
  • Trace
  • Fluxes
  • Modulation
  1 Citation (Scopus)