Spreading and Isolating Multiple Stacked Cards using Absorptive Hole Array. - Shinichi Hirai; Masamitsu Ukai; Ken Yamada; Koji Sugita (ICRA, 2002)

Resource Sharing by Multilingual Expression Services. - Masaki Gotou; Hirofumi Yamaki; Daisuke Yanagisawa; Masamitsu Ukai; Masahiro Tanaka; Toru Ishida 001 (APSCC, 2008)