Introduction of a Package System into Prolog. - Hiroaki Etoh; Naoyuki Tamura; Yasuo Asakawa; Toshiyuki Hama; Hideaki Komatsu (LP, 1987)

Zephyr: Toward true compiler-based programming in Prolog. - Yasuo Asakawa; Hideaki Komatsu; Hiroaki Etoh; Toshiyuki Hama; Keiichi Maruyama (IBM J. Res. Dev., 1992)

Curvilinear Detailed Routing Algorithm and Its Extension to Wire-Spreading and Wire-Fattening. - Toshiyuki Hama; Hiroaki Etoh (ASP-DAC, 1998)

Topological routing path search algorithm with incremental routability test. - Toshiyuki Hama; Hiroaki Etoh (IEEE Trans. Comput. Aided Des. Integr. Circuits Syst., 1999)

Curvilinear detailed routing with simultaneous wire-spreading and wire-fattening. - Toshiyuki Hama; Hiroaki Etoh (IEEE Trans. Comput. Aided Des. Integr. Circuits Syst., 1999)

Finding a Connection Chain for Tracing Intruders. - Kunikazu Yoda; Hiroaki Etoh (ESORICS, 2000)

Network-Based Problem Detection for Distributed Systems. - Hisashi Kashima; Tadashi Tsumura; Tsuyoshi Idé; Takahide Nogayama; Ryo Hirade; Hiroaki Etoh; Takeshi Fukuda (ICDE, 2005)

Study of non-contact nano-probing technique using FIB. - Yoji Mashiko; Hiroaki Etoh; Akiyoshi Furukawa; Daisuke Nomiyama; Osamu Ichimaru (Microelectron. Reliab., 2010)