1. (1) Japan Society for the Promotion of Science Research for the Future Program: Highly Efficient Use of Energy and Reduction of its Environmental Impact (2002-1)
2. (2) Japan Society for the Promotion of Science Research for the Future Program: 2nd International Symposium Report of on Synthesis of Ecological High Quality Transportation Fuel (2002-1)
3. (3) J. Sveca and L. Söder: “Wind Power Integration in Power Systems with Bottleneck Problems”, 2003 IEEE Bologna Power Tech., IEEE Catalog 0-7803-7967-5/03/, Italy (2003-10)
4. (4) O. Sakamoto and T. Nitta: “Basic Consideration on effects of Superconducting Generator on Mitigation of Voltage fluctuation in power Systems with Wind power generation”, 2005 National Convention Record IEE Japan, No. 6-081 (2005-3) (in Japanese)
5. 坂本織江.仁田旦三: 「風力発電導入時の超電導発電機の電圧変動抑制効果に関する基礎検討」, 平成17年電気学会全国大会, No. 6-081 (2005-3)