1. Central Research Laboratory, Hitachi, Ltd., 1-280, Higachi-koigakubo Kokubunji-shi, Tokyo, Japan
2. Noda Development, Group Plannig & Administration Department, Kikkoman Biochemifa Company, 376-2, Kamihanawa, Noda-shi, Chiba, Japan
3. Product Development & Marketing Division, Hitachi Maxell, Ltd., 1, Koizumi, Oyamazaki, Otokuni, Kyoto, Japan