1. (2) M. Tsuda, K. Tsuchiya, N. Harada, and T. Hamajima: “Dependence of lateral stiffness on magnetic field distribution at field-cooling process of HTS bulk system”, IEEE Trans. Appl. Supercond., Vol. 14, No. 2, pp. 948-951 (2004)
2. (3) M. Tsuda, T. Kojima, T. Yagi, and T. Hamajima: “Vibration Characteristics in Magnetic Levitation Type Seismic Isolation Device Composed of Multiple HTS Bulks and Permanent Magnets”, IEEE Trans. Appl. Supercond., Vol. 17, pp. 2059-2062 (2007)
3. (4) M. Tsuda, T. Kawasaki, T. Yagai, and T. Hamajima: “Dependence of Horizontal Vibration Characteristics on Load Weight Distribution in Magnetic Levitation Type Seismic Isolation Device”, IEEE Trans. Appl. Supercond., Vol. 18, No. 2, pp. 832-835 (2008)
4. (5) M. Tsuda, T. Kawasaki, T. Yagai, and T. Hamajima: “Improvement of Levitation Force Characteristics in Magnetic Levitation Type Seismic Isolation Device Composed of HTS Bulk and Permanent Magnet”, J. Phys. Conference Series, Vol. 97, 012104 (2008)
5. (6) M. Tsuda, K. Tamashiro, S. Sasaki, T. Yagai, T. Hamajima, T. Yamada, and K. Yasui: “Vibration Transmission Characteristics Against Vertical Vibration in Magnetic Levitation Type HTS Seismic/Vibration Isolation Device”, IEEE Trans. Appl. Supercond., Vol. 19, No. 3, pp. 2249-2252 (2009)