Information Sharing System Based on Location in Consideration of Privacy for Knowledge Creation. - Toshiyuki Hirata; Susumu Kunifuji (KES, 2004)

Personal Network Aggregation System for Real-time Communication Support. - Toshiyuki Hirata; Ikki Ohmukai; Hideaki Takeda 001; Susumu Kunifuji (ICWSM, 2007)