1. Science
and Technology Research Laboratories, Japan Broadcasting Corporation (NHK), 1-10-11, Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
2. Tokyo University of Science, 1-3 Kagurazaka, Tokyo 162-8610, Japan
3. Central
Research Laboratory Technology and Development Division, Kanto Chemical Co., Inc., 1-7-1 Inari, Soka-city, Saitama 340-0003, Japan