Hierarchical Encryption of Multimedia Contents for Access Control. - Masaaki Fujiyoshi; Wataru Saitou; Osamu Watanabe 002; Hitoshi Kiya (ICIP, 2006)

The step-on interface (SOI) on a mobile platform: basic functions. - Takafumi Matsumaru; Yuichi Ito; Wataru Saitou (HRI, 2010)

The step-on interface (SOI) on a mobile platform: rehabilitation of the physically challenged. - Takafumi Matsumaru; Yuichi Ito; Wataru Saitou (HRI, 2010)