Conferences

  1. Masayoshi Yamamoto, Hiroshi Hattori, Eiji Hiraki, Mutsuo Nakaoka, "Digitally-Controlled Three-Phase Soft-Switching PFC Converter with Instantaneous Power Feedback Control Scheme", Proceedings of IEEE International Conference on Power Electronics & Drives and Energy System for Industrial Growth, Vol.2 , pp.1002-1006, 1998.

  2. M. Yamamoto, S. Hattori, E. Hiraki, M. Nakaoka, T. Horiuchi and Y.Sugawara, "Three-Phase Voltage-Fed Space Voltage Vector Modulated Soft-Switching PFC Rectifier with Instantaneous Power Feedback Scheme", Proceedings of IEE-U K International Conference on Power Electronics and Variable Speed Drives, N o.456, pp.92-98, 1998.

  3. Masayoshi Yamamoto, Masanobu Yoshida, Takeo Honda, Hideo Iwamoto, E. Hirano, S. Sugimoto, I. Kouda and Mutsuo Nakaoka, "Feasible Performance Evaluations of 3 Level 3 Phase Voltage Source Soft-Switching Inverter using IGBT Modules", Proceedings of IEEE International Conference on Power Electronics and Drive Systems, Vol.2, pp.1084-1989, 1999.

  4. Masayoshi Yamamoto, Masanobu Yoshida, Hideo Iwamoto, S. Sugimoto, I. Kouda and Mutsuo Nakaoka, "Three-Phase Voltage Source NPC Soft-Switching Inverter for Interactive Energy Storage Plants", Proceedings of IEEE 21th International Telecommunications Energy Conference, pp.29/1-8, 1999.

  5. Masayoshi Yamamoto, Eiji Hiraki, Hideo Iwamoto, S. Sugimoto, I. Kouda and Mutsuo Nakaoka, "Voltage-Fed NPC Soft-Switching Inverter with New Space Voltage Vector Modulation Scheme", Records of IEEE Industry Applications Society (IAS) Annual Meeting, Vol.2, No.26-5, pp.1178-1185, 1999.

  6. Masanobu Yoshida, Masayoshi Yamamoto, Eiji Hiraki, S. Chandhaket and Mutsuo Nakaoka, "Active Resonant Leg-Link Snubber-Assisted Three Phase Soft Commutation PFC Converter and Its Practical Evaluations", Proceedings of IEEE International Conference on Industrial Electronics, Control and Instrumentation, pp.2660-2665, 2000.

  7. Masayoshi Yamamoto, Eiji Hiraki, Shigeyuki Sugimoto, Shigeaki Ogawa and Mutsuo Nakaoka, "Feasible System Evaluations of 3-Phase Voltage Source NPC S oft-Switching Inverter with New Space Voltage Vector Modulation Strategy", Proceedings of IEEE International Conference on Industrial Electronics, Control and Instrumentation, pp.977-982, 2000.

  8. M. Yamamoto, E. Hiraki, Y. Konishi and M. Nakaoka, "Auxiliary Resonant Commutated Snubber Linked 3-Level 3-Phase Voltage Source Soft-Switching Inverter", Records of IEEE Industry Applications Conference (IAS) Annual Meetings , 36-3.pdf, 2001.

  9. Masayoshi Yamamoto, Shinji Sato and Mutsuo Nakaoka, "A Novel Voltage Clamped Snubber Circuit Topology Applied for Multilevel Inverter and Its Low Power Loss Operations", Record of European Power Electronics and Motion Control Conference'02, p.181, 2002.

  10. Masayoshi Yamamoto, Shinji Sato, Eiji Hiraki and Mutsuo Nakaoka, "Auxiliary Active Resonant Commutated Snubber-Assisted 3-Level 3-Phase Voltage Source Soft Switching Inverter", Proceedings of IEEE International Power Conversion Conference-Osaka, pp.1245-1250, 2002.

  11. Shinji Sato, Yutaka Suehiro, Masayoshi Yamamoto and Mutsuo Nakaoka, "Hi gh Power-Factor 3-Phase PWM Rectifier", Record of IEEE 24th International Telecommunications Energy Conference, pp.303-308, 2002.

  12. Shinichiro Nagai, Shinji Sato, Masayoshi Yamamoto and Mutsuo Nakaoka, "Noise Evaluation, Two Switch Resonant DC Link-Assisted Double Converter Sys tem and Commutation Control to Improve Loss", Record of IEEE International Conference on Industrial Electronics, Control and Instrumentation, pp.2705-27 10, 2002.

  13. Shinichiro Nagai, Shinji Sato, Masayoshi Yamamoto, Hisashi Iyomori and Mutsuo Nakaoka, "High Efficient Two Switch Auxiliary Resonant DC Link Three- Phase PWM Inverter and Two Switch Auxiliary Resonant Commutated Bridge Leg L ink Three-Phase PWM Rectifier", Proceedings of IEEE International Conference on Industrial Electronics, Control and Instrumentation, pp.403-407, 2003.

  14. Kouhei Imai, Takahiro Kawashima, Shigeyuki Funabiki, Masayoshi Yamamoto and Mamoru Tsuruya, "High Efficiency Low Noise SMPS System - Single Phase PFC Rectifier Side -", Proceedings of The 4th Power Conversion Conference, pp. 377-383, 2007.

  15. Akira Hashizaka, Hiroyuki Oka, Mantaro Nakamura, Shigeyuki Funabiki, Masayoshi Yamamoto, Shinichiro Nagai and Mamoru Tsuruya, "High Efficiency Low Noise SMPS System - DC-DC Converter Side -", Proceedings of The 4th Power Conversion Conference, pp. 1230-1235, 2007.

  16. Masayoshi Yamamoto, Hisanori Morii, Shigeyuki Funabiki, "Capacitor-Less Auxiliary Resonant Commutated Pole (ARCP) Voltage Source Soft Switching Inverter suitable for EV", Records of the 13th European Conference on Power Electronics and Applications, (CD-ROM), 2009.

  17. Masayoshi Yamamoto, Takahiro Kawashima, Shigeyuki Funabiki, "Trans-Linked Recovery-Less Boost Converter", Records of the 13th European Conference on Power Electronics and Applications, (CD-ROM), 2009.

  18. Masayuki Nakahama, Masayoshi Yamamoto and Yuki Satake, "Trans-linked Multi-phase Boost Converter for Electric Vehicle", Record of IEEE Energy Conversion Congress & Expo (ECCE), pp. 2458-2463, 2010.

  19. Hirotaka Toda, Masayoshi Yamamoto, "1/3 Weight Core of A Capacitor-Less ARCP Method Three-Phase Voltage Source Soft-Switching Inverter suitable for EV", Record of IEEE Energy Conversion Congress & Expo (ECCE), pp. 4101-4106, 2011.

  20. Jun Imaoka, Yuki Ishikura, Takahiro Kawashima and Masayoshi Yamamoto, "Optimal Design Method for Interleaved Single-phase PFC Converter with Coupled Inductor", Record of IEEE Energy Conversion Congress & Expo (ECCE), pp. 1807-1812, 2011.

  21. Yuta Nakamura and Masayoshi Yamamoto, "Optimal Control Design Method for Trans-Linked Type Multi-Phase Boost Converter", Record of the 9th IEEE International Conference on Power Electronics and Drive Systems (IEEE-PEDS 2011), p.p. 991-994, 2011.

  22. Kenta kono, Yuta Nakamura and Masayoshi Yamamoto, "Optimal Design of Digital Control System for Interleaved Boost Chopper Circuit with the Coupled Inductor", Record of the 9th IEEE International Conference on Power Electronics and Drive Systems (IEEE-PEDS 2011), p.p. 995-998, 2011.

  23. Tetsuya Watanabe, Yuuki Machida and Masayoshi Yamamoto, "A Hybrid Vehicle with Reversible Cell and Battery", Record of the 9th IEEE International Conference on Power Electronics and Drive Systems (IEEE-PEDS 2011), p.p. 593-595, 2011.

  24. Hirokatsu Umegami, Yu Nozaki, Masayoshi Yamamoto, Osamu Machida, "A Novel High Efficiency Gate Drive Circuit for Normally Off Type GaN-FET", Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 2954-2960, 2012.

  25. Jun Imaoka, Masayoshi Yamamoto, "A Novel Integrated Magnetic Structure suitable for Transformer-Linked Interleaved Boost chopper circuit", Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 3279-3284, 2012.

  26. Kenshiro Katsura, Masayoshi Yamamoto, "Optimal Stability Control Method for Transformer-Linked Three-Phase Boost Chopper Circuit", Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 1082-1087, 2012.

  27. Masayoshi Kobayashi, Masayoshi Yamamoto, "Current Balance Performance Evaluations for Transformer-Linked Three Phase DC-DC LLC Resonant Converter", Record of International Conference on Renewable Energy Research and Applications (ICRERA), p.p. 84, 2012.

  28. Yasuki Knazawa, Masayoshi Yamamoto, "A Novel Compact Single Phase Inverter using Transformer-Linked Interleaved Flyback Converter", Record of International Conference on Renewable Energy Research and Applications (ICRERA), p.p. 255, 2012.

  29. Kimihiro Nanamori, Imaoka Jun, Kenta Kono, Hideharu Tsukamoto, Masayoshi Yamamoto, "Verification of Novel Recovery-Less Boost Converter with Saturable Inductor", Record of International Conference on Renewable Energy Research and Applications (ICRERA), p.p. 255, 2012.

  30. Shota Kimura, Jun Imaoka and Masayoshi Yamamoto, "Potential Power Analysis and Evaluation for Interleaved Boost Converter with Close-Coupled Inductor", Record of the 10th IEEE International Conference on Power Electronics and Drive Systems (IEEE-PEDS 2013), p.p. 26-31, 2013.

  31. Masayoshi Yamamoto, "Full SiC Soft Switching Inverter – Stability Performance for False Turn On Phenomenon", Record of the 10th IEEE International Conference on Power Electronics and Drive Systems (IEEE-PEDS 2013), p.p. 159-164, 2013. [Invited Paper]

  32. Fumiya Hattori, Hirokatsu Umegami, Takashi Yoshida and Masayoshi Yamamoto, "Drive Loss Analysis and Comparison of Capacitor-Less Gate Drive Circuit for Gan FETs with Capacitor Type Gate Drive Circuits", Record of the 10th IEEE International Conference on Power Electronics and Drive Systems (IEEE-PEDS 2013), p.p. 1301-1305, 2013.

  33. Kazuhiro Umetani, Seikoh Arimura, Tetsuo Hirano, Jun Imaoka and Masayoshi Yamamoto, "Evaluation of the Lagrangian Method for Deriving Equivalent Circuits of Integrated Magnetic Components: A Case Study Using the Integrated Winding Coupled Inductor", Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 495-502, 2013.

  34. Jun Imaoka, Kazuhiro Umetani, Seikoh Arimura, Tetsuo Hirano and Masayoshi Yamamoto, "Characteristics Analysis and Performance Evaluation for Interleaved Boost Converter with Integrated Winding Coupled Inductor", Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 3711-3718, 2013.

  35. Kenta Iwamoto, Kenshiro Katsura, Taiki Kato and Masayoshi Yamamoto, "Stable Control Design of Average Current Mode Control for Multi-Phase Transformer-Linked Type Boost Chopper Circuit", Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 5395-5402, 2013.

  36. Takashi Yoshida, Hirokatsu Umegami, Fumiya Hattori, Masayoshi Yamamoto and Atsushi Yamaguchi, “Gate Drive Circuit For Normally On Type GaN FET”, Record of 2nd International Conference on Electric Power Equipment – Switching Technology (ICEPE-ST), (CD-ROM), 2013.

  37. Shota Kimura, Jun Imaoka and Masayoshi Yamamoto “Basic Investigation on Core Loss Calculation Method under Square Wave Voltage Magnetizing Condition”, Record of 2nd International Conference on Electric Power Equipment – Switching Technology (ICEPE-ST), (CD-ROM), 2013.

  38. Jun Imaoka, Shota Kimura, Yuki Itoh, Masayoshi Yamamoto, Michiaki Suzuki and Kenji Kawano, “Feasible Evaluations of Coupled Multilayer Chip Inductor for POL Converter”, Proceedings of the 2014 International power Electronics conference-ECCE ASIA- (IPEC-Hiroshima 2014), p.p. 883-890, 2014. [Invited Paper]

  39. Fumiya Hattori, Jun Imaoka, Manabu Ishitobi, Shinichiroh Nagai and Masayoshi Yamamoto, “Efforts for Power Electronics Education in A Start-Up Company”, Proceedings of the 2014 International power Electronics conference-ECCE ASIA- (IPEC-Hiroshima 2014), p.p. 811-816, 2014. [Invited Paper]

  40. Yuki Itoh, Shota Kimura, Jun Imaoka and Masayoshi Yamamoto, “Inductor Loss Calculation of Coupled Inductors for High Power Density Boost Converter”, Proceedings of the 2014 International power Electronics conference-ECCE ASIA- (IPEC-Hiroshima 2014), p.p. 2497-2502, 2014.

  41. Wilmar Martinez, Shota Kimura, Jun Imaoka, Masayoshi Yamamoto, Kazuhiro Umetani, Tetsuo Hirano and Seikoh Arimura, “High Power Density DC- DC Converter for Home Energy Management Systems”, Record of IEEE International Green Building and Smart Grid Conference - IGBSG, pp. 1-6, 2014. [Invited Paper]

  42. Kazuhiro Umetani and Masayoshi Yamamoto, “Novel Method to Detect the DC Magnetizing Bias in Power Transformers Utilizing Local Flux Concentration”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 3739-3746, 2014.

  43. Shota Kimura, Shogo Aoto, Jun Imaoka and Masayoshi Yamamoto, “Allowable Power Analysis for High Power Density DC-DC Converters using Integrated Magnetic Components”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 5221-5228, 2014.

  44. Shota Kimura, Jun Imaoka and Masayoshi Yamamoto “Downsizing Effects with Allowable Power Analysis for High Power Density DC-DC Converters using Integrated Magnetic Components”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 5761-5768, 2014.

  45. Akihiro Nishigaki, Hirokatsu Umegami, Fumiya Hattori, Wilmar Martinez and Masayoshi Yamamoto “An Analysis of False Turn On Mechanism on Power Devices”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 2988-2993, 2014.

  46. Masataka Ishihara, Takashi Yoshida, Humiya Hattori and Masayoshi Yamamoto, “A Capacitor- less Gate Drive Circuit Using Two Parasitic Capacitors Suitable for Non-Insulating-Gate GaN FETs”, IEEE Energy Conversion Congress Expo (ECCE), pp. 3212-3218, 2014.

  47. Yuki Ito, Shota Kimura, Jun Imaoka and Masayoshi Yamamoto, “Inductor Loss Analysis of Various Materials in Interleaved Boost Converters”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 980-987, 2014.

  48. Taichi Kawakami, Hirotaka Tanada and Masayoshi Yamamoto, “Verification by Current Control of Multi-phase Transformer- Linked Type Boost Chopper Circuit Using Current Sensorless Method”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 4960-4966, 2014.

  49. Wilmar Martinez, Masayoshi Yamamoto, Petar Grbovic and Camilo. Cortes, “Efficiency Optimization of a Single-Phase Boost DC- DC Converter for Electric Vehicle Applications”, Record of 40th Annual Conference of the IEEE Industrial Electronics Society – IECON, pp. 1-6, 2014.

  50. Wilmar Martinez, Jun Imaoka, Yuki Itoh, Masayoshi Yamamoto and Kazuhiro Umetani, “Analysis of Coupled-Inductor Configuration for an Interleaved High Step-Up Converter,” Record of IEEE International Conference on Power Electronics – ICPE 2015-ECCE Asia, pp. 2591-2598, 2015.

  51. Wilmar Martinez, Jun Imaoka, Shota Kimura, Masayoshi Yamamoto and Camilo Cortes, “Volume Comparison of DC-DC Converters for Electric Vehicles,” Record of IEEE Workshop on Power Electronics and Power Quality Applications-PEPQA, pp. 1-6, 2015.

  52. Wilmar Martinez, Jun Imaoka and Masayoshi Yamamoto, “ZCS Interleaved Boost Converter with Saturable Inductors for Reverse-Recovery Reduction,” Record of IEEE International Conference on Power Electronics and Drive Systems-PEDS, pp. 855-861, 2015.

  53. Wilmar Martinez, Jun Imaoka and Masayoshi Yamamoto, “Analysis of Output Capacitor Voltage Ripple of the Three-Phase Transformer-Linked Boost Converter,” Record of IEEE 17th Conference on Power Electronics and Applications, EPE’15-ECCE Europe, pp. 1-9, 2015.

  54. Wilmar Martinez, Jun Imaoka, Yuki Itoh, Masayoshi Yamamoto and Kazuhiro Umetani “A Novel High Step-Down Interleaved Converter with Coupled Inductor,” Record of IEEE International Telecommunications Energy Conference - INTELEC, pp. 1-6, 2015.

  55. Hirokatsu Umegami, Masataka Ishihara, Fumiya Hattori, Mitsuru Masuda and Masayoshi Yamamoto, “Mid-range kHz Electrical Resonance Coupling Wireless Power Transfer”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 3197-3202, 2015.

  56. Kazuhiro Umetani, Eiji Hiraki and Masayoshi Yamamoto, “Non-isolated Interleaved High Step-up Converter with Reduced Voltage Multiplier Stages and a Regenerative Turn-off Snubber”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 125-132, 2015.

  57. Yuki Itoh, Fumiya Hattori, Shota Kimura, Jun Imaoka and Masayoshi Yamamoto, “Designing Method Considering Magnetic Saturation Issue of Coupled Inductor in Interleaved CCM Boost PFC Converter”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 2616-2621, 2015.

  58. Masataka Ishihara, Shota Kimura, Wilmar Martinez and Masayoshi Yamamoto, “Analysis and Design of Passive Components for Interleaved Flyback Converter with Integrated Transformer”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 5902-5909, 2015.

  59. Hiroki Ishibashi, Akihiro Nishigaki, Hirokatsu Umegami, Wilmar Martinez and Masayoshi Yamamoto, “An Analysis of False Turn-On Mechanism on High-frequency Power Devices”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 2247-2253, 2015.

  60. Shota Kimura, Shogo Aoto, Masataka Ishihara, Jun Imaoka and Masayoshi Yamamoto, “Interleaved Active Clump Forward Converter with Novel Integrated Magnetic Components”, Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 6029-6036, 2015

  61. Shun Endo, Yasuki Kanazawa, Kimihiro Nanamori and Masayoshi Yamamoto, "Analytical Calculation of the Voltage Ripple on the Input Capacitor of the Voltage-PWM Inverter for High Frequency Operation," IEEE INTELEC, pp. 1175-1178, 2015.

  62. Hirokatsu Umegami, Masataka Ishihara, Fumiya Hattori, Mitsuru Masuda and Masayoshi Yamamoto, "Basic Experiment Study on Misalignment Characteristic of Electrical Resonance Coupling Wireless Power Transfer," IEEE INTELEC, pp. 419-422, 2015.

  63. Mitsuru Masuda, Masahiro Kusunoki, Hirokatsu Umegami, Fumiya Hattori and Masayoshi Yamamoto, "Reduce of Electric Ner-Field Intensity by a Shield Box in Wireless Power Tranfser via Field Resinance Coupling," IEEE INTELEC, pp. 429-432, 2015.

  64. W. Martinez, J. Imaoka, S. Kimura, M. Yamamoto and C. Cortes, " Volume Comparison of DC-DC Converters for Electric Vehicles", Records of IEEE Industry Applications Conference (IAS) Annual Meeting, 2015.

  65. W. Martinez, J. Imaoka, M. Yamamoto and K. Umetani "High Step-Up Interleaved Converter for Renewable Energy and Automotive Applications", Record of International Conference on Renewable Energy Research and Applications (ICRERA), p.p. 1-6, 2015

  66. W. Martinez, Masayoshi Yamamoto, Jun Imaoka, Freddy Velandia and Camilo Cortes, “Efficiency Optimization of a Two-Phase Interleaved Boost DC-DC Converter for Electric Vehicle Applications,” Record of IEEE International Conference on Power Electronics – ICPE 2016-ECCE Asia, pp. 1-7, 2016.

  67. Masayoshi Yamamoto, "Benefits and Requirements of Using SiC and/or GaN Power Switching Devices for "Real" Power Control Systems," in Proc. CS-MANTECH (The International Conference on Compound Semiconductor Manufacturing Technology) 2016, pp. 207-209, 2016. [Invited Paper]

  68. Wilmar Martinez, Mostafa Noah, Masayoshi Yamamoto and Jun Imaoka, “Reverse-Recovery Current Reduction in a ZCS Boost Converter with Saturable Inductors using Nanocrystalline Core Materials” Record of IEEE 18th Conference on Power Electronics and Applications, EPE’16-ECCE Europe, pp. 1-9, 2015.

  69. Freddy Velandia, Wilmar Martinez, Camilo Cortes, Mostafa Noah and Masayoshi Yamamoto “Power Losses Analaysis of Multiphase and Modular Interleaved Boost DC-DC Converters with Coupled Inductor for Electric Vehicles” Record of IEEE 18th Conference on Power Electronics and Applications, EPE’16-ECCE Europe, pp. 1-10, 2015.

  70. Wilmar Martinez, Mostafa Noah, Shun Endo, Kimihiro Nanamori, Shota Kimura, Yuki Itoh, Masayoshi Yamamoto, Jun Imaoka and Kazuhiro Umetani “Three-phase LLC Resonant Converter with Integrated Magnetics” Record of IEEE Energy Conversion Congress Expo (ECCE), pp. 1-8, 2016.

  71. Daigoro Ebisumoto, Masataka Ishihara, Shota Kimura, Wilmar Martinez, Mostafa Noah, Masayoshi Yamamoto, and Jun Imaoka, “Design of a Four-Phase Interleaved Boost Circuit with Closed-Closed Inductors”, in Proc. IEEE Energy Conversion Congress & Expo. (ECCE), pp.1-6 (2016).

    1. Masato Sasaki and Masayoshi Yamamoto, “Exciting Voltage Control for Efficiency Maximization for 2-D Omni-Directional Wireless Power Transfer Systems”, Record of 19th International Conference on Electrical Engineering and Technology (ICEET 2017) (Accepted).

  72. Mostafa Noah, Shota Kimura, Shun Endo, Masayoshi Yamamoto, Jun Imaoka, Kazuhiro Umetani and Wilmar Martinez, “A Novel Three-phase LLC Resonant Converter with Integrated Magnetics for Lower Turn-off Losses and Higher Power Density” Record of 32nd Annual IEEE Applied Power Electronics Conference & Exposition, APEC, 2017 (Accepted).

  73. Masato Sasaki and Masayoshi Yamamoto, “Exciting Voltage Control for Power Transfer Efficiency Maximization for Multiple Transmitting Wireless Power Transfer Systems”, in Proc. IEEE Energy Conversion Congress & Expo. (IEEE-ECCE 2017), (Accepted)

  74. Hoang Chuong Thai, Masataka Isihara, Shota Kimura, Daigoro Ebisumoto and Masayoshi Yamamoto, “A Novel Magnetic Structure of Close-Coupled Inductors to Improve the Thermal Handling Capability in Interleaved DC-DC Converter”, in Proc. IEEE Energy Conversion Congress & Expo. (IEEE-ECCE 2017), (Accepted)

  75. Jun Imaoka, Kenkichiro Okamoto, Shota Kimura, Mostafa Noah, Masayoshi Yamamoto, and Masahito Shoyama,“ A High-Reliable Magnetic Design Method for Three-Phase Coupled Inductor used in Interleaved Multi-Phase Boost Converter”, in Proc. IEEE Energy Conversion Congress & Expo. (IEEE-ECCE 2017), (Accepted)

  76. Mostafa Noah, Kazuhiro Umetani, Shun Endo, Hiroki Ishibashi, Masayoshi Yamamoto and Jun Imaoka, “A Lagrangian Dynamics Model of Integrated Transformer Incorporated in a Multi-phase LLC Resonant Converter”, in Proc. IEEE Energy Conversion Congress & Expo. (IEEE-ECCE 2017), (Accepted)

  77. Ishiwaki Seiya, Ishibashi Hiroki, Iwaki Toshihiro, Sugihara Yuusuke, Nanamori Kimihiro and Masayoshi Yamamoto and Jun Imaoka, “ An Analysis of False Turn-On Phenomenon of GaN HEMT with Parasitic Inductances And Propose Novel Design Method of Gate Resistance Value Focusing on Peak Gate Voltage”, in Proc. IEEE Energy Conversion Congress & Expo. (IEEE-ECCE 2017), (Accepted)

  78. Yusuke Sugihara, Yuma Hayashi, Kyota Aikawa, Kazuhiro Umetani, Kimihiro Nanamori, Masayoshi Yamamoto and Eiji Hiraki, “Analytical Investigation on Design Instruction to Avoid Oscillatory False Triggering of Fast Switching SiC-MOSFETs”, in Proc. IEEE Energy Conversion Congress & Expo. (IEEE-ECCE 2017), (Accepted)

  79. Shota Kimura, Thai Hoang Chuong, Daigoro Ebisumoto, Taichi Kawakami, Jun Imaoka, and Masayoshi Yamamoto "A Novel Isolated DC-DC Converter with Integrated Magnetic Components for EV and HEV Applications”, Record of IEEE International Future Energy Electronics Conference Electronics (IFEEC 2017-ECCE Asia), June 2017.

  80. Jun Imaoka, Kenkichiro Okamoto, Masahito Shoyama, Shota Kimura, Daigoro Ebisumoto, Mostafa Noah and Masayoshi Yamamoto, "Magnetic Design and Experimental Evaluation of Integrated Magnetic Components used in Interleaved Multi-phase DC/DC Converter with Phase Drive Control”, Record of IEEE International Future Energy Electronics Conference Electronics (IFEEC 2017-ECCE Asia), June 2017.

  81. Wilmar Martinez, Camilo Cortes, Jun Imaoka, Kazuhiro Umetani, and Masayoshi Yamamoto, "Current Ripple Modeling of an Interleaved High Step-up Converter with Coupled Inductor”, Record of IEEE International Future Energy Electronics Conference Electronics (IFEEC 2017-ECCE Asia), June 2017.

  82. Maged Bauomy, Haytham Gamal, Adel Shaltout, Mostafa Noah, and Masayoshi Yamamoto, “Power Flow Interactive Sharing between Two DC Nanogrids Photovoltaic Local Branch Dynamic Systems at Island Operation” Record of IEEE 19th Conference on Power Electronics and Applications, EPE 2017 (ECCE-Europe), Sep. 2017.

  83. Mostafa Noah, Shun Endo, Shota Kimura, Masayoshi Yamamoto, Jun Imaoka, and Kazuhiro Umetani “An Investigation into a Slight-Variation of the Transformer Effective Permeability in LLC Resonant Converter” Record of IEEE 19th Conference on Power Electronics and Applications, EPE 2017, Sep. 2017.

  84. Toshihiro Iwaki, Seiya Ishiwaki, Yusuke Sugihara, Takashi Sawada, Kimihiro Nanamori, Mostafa Noah, Shota Kimura, and Masayoshi Yamamoto, "The theoretical analysis of False-Turn-ON of GaN HEMT", in Proc. International Conference on Materials and Systems for Sustainability 2017 (ICMass)

  85. Tengfei Ou, Thai Hoang Chuong, Daigoro Ebisumoto, Shota Kimura, Yusuke Sugihara, Seiya Ishiwaki, and Masayoshi Yamamoto, "A combination of ferrite and powder cores to increase the efficiency in interleaved DC-DC converters", in Proc. International Conference on Materials and Systems for Sustainability 2017 (ICMass).

  86. Shota Kimura, Kimihiro Nanamori, Mostafa Noah, and Masayoshi Yamamoto “A Novel LLC Resonant DC-DC Converter with Integrated Transformer”, in Proc. IEEE International Telecommunications Energy Conference - INTELEC, pp. 1-5 (2017).

  87. Daigoro Ebisumoto, Shota Kimura, Kimihiro Nanamori, Mostafa Noah, Jun Imaoka, Masataka Ishihara, and Masayoshi Yamamoto “Analytical Investigation of Interleaved DC-DC Converter using Closed Coupled Inductor with Phase Drive Control”, in Proc. IEEE International Telecommunications Energy Conference - INTELEC, pp. 1-4 (2017)

  88. Shota Kimura, Kimihiro Nanamori, and Masayoshi Yamamoto“Modeling and Design of Interleaved Multi-phase DC-DC Converter with 2-phase Coupled Inductor Cell for High Power Density”, in Proc. International Conference on Renewable Energy Research and Applications (ICRERA), pp. 1-6 (2017)

  89. Yuki Ishikura, Jun Imaoka, Mostafa Noah, and Masayoshi Yamamoto, "Core Loss Evaluation in Powder Cores: A Comparative Comparison between Electrical and Calorimetric Methods”, IPEC Niigata, May 2018

  90. Jun Imaoka, Kenkichiro Okamoto, Masahito Shoyama, Yuki Ishikura, Mostafa Noah, and Masayoshi Yamamoto, "Modeling, Magnetic Design, and Simulation Methods Considering DC Superimposition Characteristic of Powder Cores Used in Power Converters”, IPEC Niigata, May 2018

  91. Yoshiya Ohnuma, Satoshi Miyawaki, Fumiya Hattori, and Masayoshi Yamamoto, "Experimental Evaluation of Inverter System Consisting of 4-Parallel GaN Devices Unit”, IPEC Niigata, May 2018.

  92. Yusuke Sugihara, Kimihiro Nanamori, Masayoshi Yamamoto, and Yasuki Kanazawa "Parasitic Inductance Design Considerations to Suppress Gate Voltage Oscillation of Fast Switching Power Semiconductor Devices”, IPEC Niigata, May 2018.

  93. Masato Sasaki and Masayoshi Yamamoto, "Multiple Exciting Voltage Control for Maximization of Multi-Hop Wireless Power Transfer Efficiency”, IPEC Niigata, May 2018.

  94. Mostafa Noah, Jun Imaoka, Yuki Ishikura, Kazuhiro Umetani, and Masayoshi Yamamoto, "Review of Current Balance Mechanism in Three-phase LLC Resonant Converter", in Proc. IEEE International Symposium on Industrial Electronics (ISIE 2018), Cairns, Australia, June 2018.

  95. Tengfei Ou, Mostafa Noah, Koichi Morita, Mamoru Tsuruya, Seiji Namiki, Jun Imaoka, Masayoshi Yamamoto, “A Novel Design Method of an Isolated Transformer Used in a 1.3-MHz LLC Resonant Converter with GaNFETs”, IEEE PEAC, November 2018.