Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Masataka Iwakuma Last modified date:2019.06.27

Professor / Applied Energy Engineering / Department of Electrical Engineering / Faculty of Information Science and Electrical Engineering


Presentations
1. M. Iwakuma, Development of fully-turbo electric propulsion systems for future aircrafts, International Symposium on Superconductivity(ISS2018), 2018.12.
2. M. Komiya, T. Aikawa, K. Yoshida, S. Miura, M. Iwakuma, T. Yoshida, T. Sasayama, A. Tomioka, M. Konno, T. Izumi, Numerical Analysis of AC loss and Power Density of 10 MW Fully Superconducting Generators for Electric Aircrafts from the viewpoint of Armature Winding Configuration, International Symposium on Superconductivity(ISS2018), 2018.12.
3. H. Sasa, G. Kawasaki, S. Miura, M. Iwakuma, T. Izumi, T. Machi, A. Ibi, Dependence of AC Loss in Stacked REBa2Cu3Oy Superconducting Tapes on the Interval among Tapes under Perpendicular Magnetic Field , International Symposium on Superconductivity(ISS2018), 2018.12.
4. K. Komiya, M. Iwakuma, S. Miura, S. Fukuda, T. Aikawa, S. Sato, K. Yoshida, Y. Hase, A. Tomioka, M. Konno, T. Izumi, Design Study of 10 MW REBa2Cu3Oy Fully Superconducting Synchronous Generator for Electric Aircraft , Applied Superconductivity Conference(ASC2018), 2018.10.
5. T. Aikawa, M. Iwakuma, S. Miura, S. Fukuda, M. Komiya, K. Yoshida, T. Sasayama, A. Tomioka, M. Konno, T. Izumi, Design Study of 5 MW REBa2Cu3Oy Fully Superconducting Synchronous Motor for Electric Aircraft, Applied Superconductivity Conference(ASC2018), 2018.10.
6. F. Nakamura, M. Iwakuma, S. Miura, K. Yoshida, A. Tomioka, M. Konno, Study on the Current Limiting Cooperation of Superconducting Transformers and Cables, Applied Superconductivity Conference(ASC2018), 2018.10.
7. S. Sagawa, S. Miura, Y. Fukumoto, K. Yoshida, S. Sato, T. Izumi, M. Iwakuma, Investigation of Current-sharing properties of parallel conductors composed of REBa2Cu3Oy superconducting tapes for NMR, Applied Superconductivity Conference(ASC2018), 2018.10.
8. H. Sasa, G. Kawasaki, S. Miura, M. Iwakuma, T. Izumi, T. Machi, A. Ibi , Scaling Law of AC Loss in Stacked REBa2Cu3Oy Superconducting Tapes, Applied Superconductivity Conference(ASC2018), 2018.10.
9. M. Iwakuma, Development of REBCO fully superconducting motors for electric aircrafts, CCA2018, 2018.09.
10. S. Miura, Y. Yoshida, Y. Tsuchiya, Y. Ichino, S. Awaji, K. Matsumoto, A. Ichinose, A. Ibi, T. Izumi, M. Iwakuma, Enhancement of flux pinning by random pinning centers at 4.2 K in BaHfO3-doped SmBa2Cu3Oy coated conductors, 13th European Conference on Applied Superconductivity(EUCAS), 2017.09.
11. T. Tokuchi, M. Iwakuma, K. Yoshida, A. Tomioka, M. Konno and K. Adachi, Current limiting cooperation of superconducting transformers and cables, 13th European Conference on Applied Superconductivity(EUCAS), 2017.09.
12. S. Fukuda, M. Iwakuma, S. Miura, S. Sato, K. Yoshida, Y. Hase, A. Tomioka, M. Konno and T. Izumi, Design Study of 2MW Fully Superconducting Synchronous Motor, 13th European Conference on Applied Superconductivity(EUCAS), 2017.09.
13. M. Iwakuma, Development toward All Superconducting Motors in Japan, CEC/ICMC-2017, 2017.07.
14. S. Sagawa, S. Honda, S. Miura, M. Iwakuma, Y. Fukumoto, K. Yoshida, S. Sato, T. Izumi, A. Tomioka and M. Konno, Current sharing properties of REBCO superconducting parallel conductors wound into a coil, International Conference on Magnet Technology 25(MT25), 2017.08.
15. S. Oki, S. Miura, M. Iwakuma, Additional ac loss properties of REBCO superconducting two-strand parallel conductors, International Conference on Magnet Technology 25(MT25), 2017.08.
16. T .Ito, M. Iwakuma, S. Miura, T. Izumi, K. Adachi, T. Machi, and A. Ibi , AC Loss Properties of Stacked Multifilamentary REBCO Superconducting Tapes, International Conference on Magnet Technology 25(MT25), 2017.08.
17. K. Yun, M. Iwakuma, K. Tamura, Y. Hase, Y. Sasamori, T. Izumi, Electrical analysis for 15MW REBCO designed wind turbine generators, International Conference on Magnet Technology 25(MT25), 2017.08.
18. T. Tokuchi, M. Iwakuma, K. Yoshida, A. Tomioka, M. Konno and K. Adachi, Cooperation of the current limiting function of superconducting transformers and cables, 1st Asian ICMC CSSJ50, 2016.11.
19. T .Ito, T. Ueno, M. IWAKUMA, T. Izumi, T. Machi, and A. Ibi , AC loss properties of stacked REBCO superconducting tapes, 1st Asian ICMC CSSJ50, 2016.11.
20. S. Oki, K. Nabekura, M. Iwakuma, Additional AC loss properties of Y-based superconducting parallel conductors, 1st Asian ICMC CSSJ50, 2016.11.
21. S. Fukuda, K. Tamura, M. Iwakuma, S. Sato, K. Yoshida, Y. Hase, A. Tomioka, M. Konno and T. Izumi, Design Study of 500kW Fully Superconducting Synchronous Motor, 1st Asian ICMC CSSJ50, 2016.11.
22. S. Honda, Y. Fukumoto, M. Iwakuma, K. Yoshida, S. Sato, T. Izumi, A. Tomioka and M. Konno, Current sharing properties in parallel conductors composed of REBCO superconducting tapes, 1st Asian ICMC CSSJ50, 2016.11.
23. M.Iwakuma, Development of a 3φ-66/6.9kV-2MVA REBCO Superconducting Transformer, 1st Asian ICMC CSSJ50, 2016.11.
24. M.Iwakuma, Electrical measurement of ac loss in triaxial superconducting cables, 1st Asian ICMC CSSJ50, 2016.11.
25. M. Iwakuma, Development of REBCO superconducting coils for MRI operating in subcooled LN2 at 65 K, CCA2016, 2016.09.
26. T.Ueno, T.Ito, K. Yun, K. Adachi, M.Iwakuma, A. Tomioka, Y. Hase, M. Konno T.Izumi, T. Machi and A. Ibi, Ac Loss Properties of Stacked REBCO Superconducting Tapes, ASC2016, 2016.09.
27. K. Tamura, K.Yun, M. Iwakuma, S. Sato, K. Yoshida, A. Tomioka, M. Konno and T. Izumi, Design Study of 500kW Fully Superconducting Synchronous Motor, ASC2016, 2016.09.
28. S.Honda, Y.Fukumoto, M.Iwakuma, K.Yoshida, S.Sato, T.Izumi, A.Tomioka, M.Konno, Current sharing properties in parallel conductors composed of REBCO superconducting tapes for MRI, ASC2016, 2016.09.
29. M. Iwakuma, K. Nabekura, K. Yun, S. Sato, K. Yoshida, A. Tomioka, M. Konno, T. Machi, A. Ibi , and T. Izumi, Scribing Effect on Shielding Current in REBCO Superconducting Coils, ASC2016, 2016.09.
30. M.Iwakuma, Superconducting Magnets and Coils -Electromagnetic properties of superconducting wires and cables in windings-, 1st ASIA Superconductivity Summer School 2016, 2016.08.
31. M. Iwakuma, AC & DC applications of REBCO superconducting tapes, ISS2015 (Tokyo), 2015.11.
32. F. Kawahara, M. Iwakuma, S. Honda, K. Yun, K. Tamura, S. Sato, K. Yoshida, A. Tomioka1), T. Izumi2) ,K. Adachi3), Current sharing properties in parallel conductors composed of REBCO superconducting tapes for MRI, International Conference on Magnet Technology 24(MT24), 2015.10.
33. M. Iwakuma, T. Ueno, K. Yun , T. Izumi, Y. Shiohara A. Ibi , Decay of shielding current in stacked REBCO superconducting tapes , International Conference on Magnet Technology 24(MT24), 2015.10.
34. M. Saruwatari, K. Yun, M. Iwakuma, K. Tamura, Y. Hase, Y. Sasamori and T. Izumi, Design Study for 15MW Wind Turbine Generators, International Conference on Magnet Technology 24(MT24), 2015.10.
35. M. Iwakuma, Y. Tsukigi, K. Nabekura, T. Ueno, R. Shindo, F. Kawahara, S. Honda, R. Tamura, K. Yun, S. Sato, K. Yoshida, A. Tomioka, M. Konno, T. Izumi, T. Machi and A. Ibi, Scribing Effect for Reducing Influence of Relaxation of Magnetization in REBCO Superconducting Coils for MRI, International Conference on Magnet Technology 24(MT24), 2015.10.
36. M. Iwakuma, Y. Tsukigi, K. Nabekura, T. Ueno, R. Shindo, F. Kawahara, S. Honda, K. Tamura, K. Yun, S. Sato, K. Yoshida, A. Tomioka, M. Konno, T. Izumi, T. Machi and A. Ibi, New Method of Operating REBCO Superconducting Coils for MRI to Reduce Shielding Current, International Conference on Magnet Technology 24(MT24), 2015.10.
37. K. Tamura, M. Iwakuma, T. Ueno, K. Yun, S. Sato, K. Yoshida, A. Tomioka, M. Konno and T. Izumi, Study on the Optimum Arrangement of the Field Winding for a 20kW Fully Superconducting Motor, International Conference on Magnet Technology 24(MT24), 2015.10.
38. M. Iwakuma, Subcooled-LN2-bath-cooling system with a Ne turbo-Brayton refrigerator for HTS applications, IWC-HTS 2015 (Matsue), 2015.10.
39. M. Iwakuma, Y. Tsukigi, K. Nabekura, T. Ueno, R. Shindo, F. Kawahara, S. Honda, K. Tamura, K. Yun, S. Sato, K. Yoshida, A. Tomioka, M. Konno, T. Izumi, T. Machi and A. Ibi, Relaxation of Shielding Current in Test Coils for MRI with REBCO Superconducting Scribed Tapes, 12th European Conference on Applied Superconductivity(EUCAS), 2015.09.
40. M. Iwakuma, Y. Tsukigi, K. Nabekura, T. Ueno, R. Shindo, F. Kawahara, S. Honda, K. Tamura, K. Yun, S. Sato, K. Yoshida, A. Tomioka, M. Konno, T. Izumi, T. Machi and A. Ibi, Relaxation of Shielding Current in Test Coils for MRI with REBCO Superconducting Non-Scribed Tapes, 12th European Conference on Applied Superconductivity(EUCAS), 2015.09.
41. M. Iwakuma, F. Kawahara, S. Honda, K. Yun, K. Tamura, S. Sato, K. Yoshida, A. Tomioka and T. Izumi, Current sharing properties in parallel conductors composed of REBCO superconducting tapes for MRI, 12th European Conference on Applied Superconductivity(EUCAS), 2015.09.
42. M, Iwakuma, K Adachi, K Yun, K Yoshida, S Sato, Y Suzuki, T Umeno, M Konno, H Hayashi, T Eguchi, T Izumi, Y Shiohara, Development of cooling system for 66/6.9kV-20MVA REBCO superconducting transformers with Ne turbo-Brayton refrigerator and subcooled liquid nitrogen, CEC/ICMC2015 (Joint Cryogenic Engineering Conference and International Cryogenic Materials Conference, Toucson, US), 2015.06.
43. M. Iwakuma, Development of a 66/6.9kV-20MVA REBCO Superconducting Transformer with a Current Limiting Function, CCA2014 (International Workshop on Coated Conductors for Applications), 2014.12.
44. Masataka Iwakuma, Kizen Sakaki, Akira Tomioka, Takeji Miyayama, Masayuki Konno, Sigeru Yoshida, Yoshiaki Suzuki, Hirokazu Hirai, Hidemi Hayashi, Hiroshi Okamoto, Yoshihiro Gosho, Tohru Eguchi, Yasuhiro Iijima, Takashi Saitoh, Teruo Izumi, Yuh Shiohara, Development of 3φ‐66/6.9kV‐2MVA REBCO SuperconducAng Transformers with Fault Current Limiting Function, IU-MRS ICA 2014 (International Union of Materials Research of Societies, International Conference in Asia 2014), 2014.08.
45. Masataka Iwakuma, Kizen Sakaki, Akira Tomioka, Takeji Miyayama, Masayuki Konno, Hidemi Hayashi, Hiroshi Okamoto, Yoshihiro Gosho, Tohru Eguchi, Sigeru Yoshida, Yoshiaki Suzuki, Hirokazu Hirai, Yasuhiro Iijima, Takashi Saitoh, Teruo Izumi, Yuh Shiohara, Development of a 66/6.9kV-2MVA REBCO superconducting transformer, 2014 Applied Superconductivity Conference, 2014.08.
46. Yuhei Ohtsubo, Masataka Iwakuma, Seiki Sato, Kizen Sakaki, Akira Tomioka, Takeji Miyayama, Masayuki Konno, Hidemi Hayashi, Hiroshi Okamoto, Yoshihiro Gosho,Tohru Eguchi, Takashi Saitoh, Teruo Izumi and Yuh Shiohara, Development of REBCO superconducting transformers with a current limiting function
- Fabrication and tests of 6.9kV-400kVA transformers -, 2014 Applied Superconductivity Conference, 2014.08.
47. Masataka Iwakuma, Development of a 66kV-20MVA REBCO Superconducting Transformer with a Current Limiting Function, International Conference on Coated Conductors for Applications 2012, 2012.11.
48. Masataka Iwakuma, Development of HTS power devices, Kyushu University & Changwon National University Joint Workshop 2012 on Superconductivity, 2012.01.
49. Unique electromagnetic behavior of REBCO superconducting tapes producing drastic reduction of pinning loss.
50. Magnetic phase transition of REBCO superconducting tapes promising tremendous progress in next century for superconductors.
51. Development of a REBCO superconducting transformer with current limiting function.
52. Development of REBCO Superconducting Transformers and Motors in Japan.
53. Production and Test of a REBCO Superconducting Synchronous Motor.
54. Development of YBCO superconducting motors and transformers in Japan.
55. Development of a 7.5kW YBCO superconducting synchronous motor .
56. Development of a 15kW Motor with a Fixed YBCO Superconducting Field Winding.
57. Power application of YBCO superconducting tapes in Japan ; Transformers and motors.
58. Ac loss properties of YBCO superconducting tapes exposed to external ac magnetic field.