1. Department of Applied Chemistry; Chubu University; Matsumoto-cho 1200 Kasugai Aichi 487-8501 Japan
2. Teacher-training Course; Chubu University; Matsumoto-cho 1200 Kasugai Aichi 487-8501 Japan
3. Department of Electrical Engineering; Chubu University; Matsumoto-cho 1200 Kasugai Aichi 487-8501 Japan
4. Department of Clinical Engineering; Chubu University; Matsumoto-cho 1200 Kasugai Aichi 487-8501 Japan