1. (1) L. Roos, F. Guenter, A. Guignard, and A. G. Billard : “Design of a biomimetic spine for the humanoid robot robota”, IEEE/RAS-EMBS Int. conf. on Biomed. Rob. Biomec, Pisa, Italy, pp. 20-22 (2006-2)
2. (2) A. Bruce, I. Nourbakhsh, and R. Simmons : “The role of expressiveness and attention in human-robot interaction”, Proc. IEEE Int. Conf. Robo. Autom., Washington, DC, USA, pp. 4138-4142 (2002-5)
3. (3) F. Kanehiro, K. Kaneko, K. Fujiwara, K. Harada, S. Kajita, K. Yokoi, H. Hirukawa, K. Akachi, and T. Isozumi : “The first humanoid robot that has the same size as a human and that can lie down and get up”, Proc. IEEE Int. conf. Robo. Autom, Taipei, Taiwan, pp. 1633-1639 (2003)
4. (4) C.-C. Wen, C.-M. Lin, and W. Fang : “3-Axes tactile sensor with tunable sensing range”, Digest. Tech Pap, Transducer 07, Lyon, France, pp. 1457-1460 (2007-1)
5. (5) K. Noda, K. Hoshino, K. Matsumoto, and I. Shimoyama : “300nm-thick cantilever in PDMS for tactile sensing”, IEEE Micro Electro Mechanical Systems, Miami Beach, FL, USA, pp. 283-286 (2005-1,2)