Mobile and Distributed Agents in Mobidget. - Satoru Fujita; Kazuya Koyama; Toru Yamanouchi; Suresh Jagannathan; Richard Kelsey; James Philbin (ASA/MA, 1999)

Schema Based Enhancement of XPath Engine. - Keiichi Iguchi; Kazuya Koyama; Shigeru Hosono; Satoru Fujita (ICWS, 2005)

Web Services Proxy: An Extensible Platform for Intermediaries of XML Networks. - Kazuya Koyama; Keiichi Iguchi; Shigeru Hosono; Satoru Fujita (ICWS, 2005)

Workload-aware Business Process Simulation with Statistical Service Analysis and Timed Petri Net. - Seiichi Koizumi; Kazuya Koyama (ICWS, 2007)

Generating Robust XPaths for Service Customization. - Takatoshi Kitano; Keiichi Iguchi; Kazuya Koyama (SERVICES, 2010)

Analysis control middleware for large-scale video surveillance. - Takeshi Arikuma; Kazuya Koyama; Takatoshi Kitano; Nobuhisa Shiraishi; Yoichi Nagai; Tsunehisa Kawamata (AVSS, 2013)