Multi Degree of Freedom Spherical Ultrasonic Motor. - Shegeki Toyama; Shigeru Sugitani; Guoqing Zhang; Yasutaro Miyatani; Kazuto Nakamura (ICRA, 1995)

Value-Based Dynamic Composition of Web Services. - Kazuto Nakamura; Mikio Aoyama (APSEC, 2006)