A visibility - oriented construction system for logic diagrams. - Takumi Hasegawa; Toshio Kadokura; Yoshiaki Fukazawa (Syst. Comput. Jpn., 1986)

An Integration Mechanism for Design Models in the Design Environment DATE. - Hiroshi Arai; Takumi Hasegawa; Yoshiaki Fukazawa; Toshio Kadokura (IEA/AIE, 1992)