First Author:   Tomoki Kitamura NLI Research Institute and Aoyama Gakuin University kitamura@nli-research.co.jp   NLI Research Institute, 4-1-7 Kudan-kita, Chiyoda-ku Tokyo, 102-0073, JAPAN   +81-3-3512-1854(Phone) +81-3-3512-1854(Fax) Second Author: Kunio Nakashima NLI Research Institute nakasima@nli-research.co.jp   NLI Research Institute, 4-1-7 Kudan-kita, Chiyoda-ku Tokyo, 102-0073, JAPAN   +81-3-3512-1859(Phone) +81-3-5211-1082(Fax)