Passive impedance control with time-varying impedance center. - Yasuo Kishi; Zhi Wei Luo; Fumihiko Asano; Shigeyuki Hosoe (CIRA, 2003)

The role of joint stiffness enhancing collision reaction performance of collaborative robot manipulators. - Yasuo Kishi; Yoji Yamada; Kazuhiko Yokoyama (IROS, 2012)