1. Institute of Industrial Science; The University of Tokyo; 4-6-1 Komaba Meguro-ku Tokyo 153-8505 Japan
2. Takeuchi Biohybrid Innovation Project; Exploratory Research for Advanced Technology (ERATO); Japan Science and Technology Agency (JST); 4-6-1 Komaba Meguro-ku Tokyo 153-8505 Japan
3. Faculty of Teacher Education; Shumei University; 1-1 Daigaku-cho Yachiyo City Chiba 276-0003 Japan