Intention Modelling with Product Model and Knowledge in Design Process. - Eiji Arai; Kouji Okada; Kazuaki Iwata (PROLAMAT, 1992)

Design of vehicle network: mobile gateway for MANET and NEMO converged communication. - Ryuji Wakikawa; Kouji Okada; Rajeev Koodli; Anders Nilsson 003 (Vehicular Ad Hoc Networks, 2005)

MANET and NEMO Converged Communication. - Kouji Okada; Ryuji Wakikawa; Jun Murai (AINTEC, 2006)

Protocol Design for All-IP Computer Architecture. - Kouji Okada; Hideaki Yoshifuji; Keisuke Muda; Ryuji Wakikawa; Yoshifumi Nishida; Jun Murai (ICOIN, 2008)

ovstack: A protocol stack of common data plane for overlay networks. - Ryo Nakamura; Kouji Okada; Yuji Sekiya; Hiroshi Esaki (NOMS, 2014)

A common data plane for multiple overlay networks. - Ryo Nakamura; Kouji Okada; Yuji Sekiya; Hiroshi Esaki (Comput. Networks, 2015)