Development of a 22 kV/6.9 kV single-phase model for a 3 MVA HTS power transformer K Funaki, M Iwakuma, K Kajikawa, M Hara, J Suchiro, T Ito, Y Takata, ... IEEE transactions on applied superconductivity 11 (1), 1578-1581, 2001 | 119 | 2001 |
Numerical evaluation of AC losses in HTS wires with 2D FEM formulated by self magnetic field K Kajikawa, T Hayashi, R Yoshida, M Iwakuma, K Funaki IEEE transactions on applied superconductivity 13 (2), 3630-3633, 2003 | 113 | 2003 |
Development of a 500kVA-class oxide-superconducting power transformer operated at liquid-nitrogen temperature K FUNAKI, M IWAKUMA, K KAJIKAWA, M TAKEO, J SUEHIRO, M HARA, ... TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan …, 1998 | 110 | 1998 |
AC loss properties of a 1 MVA single-phase HTS power transformer M Iwakuma, K Funaki, K Kajikawa, H Tanaka, T Bohno, A Tomioka, ... IEEE transactions on applied superconductivity 11 (1), 1482-1485, 2001 | 105 | 2001 |
AC inductive measurement of intergrain and intragrain currents in high-Tc oxide superconductors B Ni, T Munakata, T Matsushita, M Iwakuma, K Funaki, M Takeo, ... Japanese journal of applied physics 27 (9R), 1658, 1988 | 82 | 1988 |
Preliminary tests of a 500 kVA-class oxide superconducting transformer cooled by subcooled nitrogen K Funaki, M Iwakuma, M Takeo, K Yamafuji, J Suchiro, M Hara, M Konno, ... IEEE transactions on applied superconductivity 7 (2), 824-827, 1997 | 77 | 1997 |
Development of REBCO superconducting power transformers in Japan M Iwakuma, H Hayashi, H Okamoto, A Tomioka, M Konno, T Saito, ... Physica C: Superconductivity 469 (15-20), 1726-1732, 2009 | 73 | 2009 |
Anomalous magnetic behavior due to reversible fluxoid motion in superconducting multifilamentary wires with very fine filaments F Sumiyoshi, M Matsuyama, M Noda, T Matsushita, K Funaki, M Iwakuma, ... Japanese journal of applied physics 25 (2A), L148, 1986 | 73 | 1986 |
Estimate of Attainable Critical Current Density in Superconducting YBa2Cu3O7-δ T Matsushita, M Iwakuma, Y Sudo, B Ni, T Kisu, K Funaki, M Takeo, ... Japanese journal of applied physics 26 (9A), L1524, 1987 | 71 | 1987 |
Development of a 3-66/6.9 kV-2 MVA REBCO Superconducting Transformer M Iwakuma, K Sakaki, A Tomioka, T Miyayama, M Konno, H Hayashi, ... IEEE Transactions on Applied Superconductivity 25 (3), 1-6, 2014 | 70 | 2014 |
Enhanced Jc properties in superconducting NbTi composites by introducing Nb artificial pins with a layered structure K Matsumoto, H Takewaki, Y Tanaka, O Miura, K Yamafuji, K Funaki, ... Applied physics letters 64 (1), 115-117, 1994 | 69 | 1994 |
Progress of the first commercial project of high-temperature superconducting cables by KEPCO in Korea C Lee, H Son, Y Won, Y Kim, C Ryu, M Park, M Iwakuma Superconductor Science and Technology 33 (4), 044006, 2020 | 60 | 2020 |
Abnormal quench process with very fast elongation of normal zone in multi-strand superconducting cables M Iwakuma, H Kanetaka, K Tasaki, K Funaki, M Takeo, K Yamafuji Cryogenics 30 (8), 686-692, 1990 | 60 | 1990 |
Development of a laser scribing process of coated conductors for the reduction of AC losses K Suzuki, J Matsuda, M Yoshizumi, T Izumi, Y Shiohara, M Iwakuma, A Ibi, ... Superconductor Science and Technology 20 (8), 822, 2007 | 54 | 2007 |
Development of a 15 kW motor with a fixed YBCO superconducting field winding M Iwakuma, A Tomioka, M Konno, Y Hase, T Satou, Y Iijima, T Saitoh, ... IEEE Transactions on Applied Superconductivity 17 (2), 1607-1610, 2007 | 54 | 2007 |
Development of a 1 T cryocooler-cooled pulse coil with a Bi2223 superconducting parallel conductor for SMES M Iwakuma, K Funaki, K Kajikawa, H Kanetaka, H Hayashi, K Tsutsumi, ... IEEE transactions on applied superconductivity 9 (2), 928-931, 1999 | 52 | 1999 |
Theoretical investigation on the detection ratio of the magnetization in superconducting wires by a saddle-shaped pick-up coil M Iwakuma, M Nanri, M Fukui, Y Fukuda, K Kajikawa, K Funaki Superconductor Science and Technology 16 (5), 545, 2003 | 51 | 2003 |
Design study of 10 MW REBCO fully superconducting synchronous generator for electric aircraft M Komiya, T Aikawa, H Sasa, S Miura, M Iwakuma, T Yoshida, ... IEEE transactions on applied superconductivity 29 (5), 1-6, 2019 | 50 | 2019 |
Design study of 15-MW fully superconducting generators for offshore wind turbine M Saruwatari, K Yun, M Iwakuma, K Tamura, Y Hase, Y Sasamori, T Izumi IEEE transactions on applied superconductivity 26 (4), 1-5, 2016 | 49 | 2016 |
A superconducting sub-structure in sintered ybacu3o7-x plates K Funaki, M Iwakuma, Y Sudo, B Ni, T Kisu, T Matsushita, M Takeo, ... Japanese journal of applied physics 26 (9A), L1445, 1987 | 48 | 1987 |