1. National Institute of Technology (KOSEN), Kumamoto College, 2659-2, Suya, Koshi-shi, Kumamoto 861-1102, Japan
2. Samco, Inc., 36, Waraya-cho, Takeda, Fushimi-ku, Kyoto 612-8443, Japan
3. HORIBA Ltd., 2, Miyanohigashi, Kisshoin, Minami-ku, Kyoto 601-8510, Japan
4. Horiba Techno Service Co., Ltd., 2, Miyanohigashi, Kisshoin, Minami-ku, Kyoto 601-8510, Japan