1. [1] E. Watari, H. Tsukagoshi, Y. Kitagawa and A. Kitagawa: “Magnetic brake cylinder to enhance traverse ability and its application to rescue robots,” Proc. of the 7th JFPS International Symposium on Fluid Power, pp.533–538, 2008.
2. [2] F. Kikuchi, Y. Ota and S. Hirose: “Basic Performance Experiments for jumping Quadruped,” Proc. of the 2003 IEEE/RSJ Int. Conf. on Intelligent Robots and Systems (IROS03), pp.3378–3383, 2003.
3. [3] P. Weiss: “Sandia National Laboratories,” http://www.sandia. gov/media/NewsRel/NR2000/hoppers.htm, 2000.
4. [4] M. Kovac, M. Fuchs, A. Guignard, J.C. Zufferey and D. Floreano: “A miniature 7g jumping robot,” Proc. of the 2008 IEEE International Conference on Robotics and Automation (ICRA08), pp.373–378, 2008.
5. [5] Y. Sugiyama, A. Shiotsu, M. Yamanaka and S. Hirai: “Circular/Spherical Robots for Crawling and Jumping,” Proc. of the 2005 IEEE International Conference on Robotics and Automation (ICRA05), pp.3606–3611, 2005.