An inference mechanism suited for real-time control. - Takahiko Murayama; Kazuhiko Kushima; Shoichiro Ishigaki (IEA/AIE (1), 1989)

A multimedia database system VHM and its application. - Shoichiro Ishigaki; Kazuhiko Kushima; Tsuyoshi Sakata (IFIP World Conference on IT Tools, 1996)

Mobile Data Communications and Enterprise Information Systems. - Shoichiro Ishigaki (EDOC, 2000)