Kiitemoiide TUNE: the system of listening to the conversation at the party. - Yoshiro Sugano; Yusuke Ozawa; Jumpei Ohtsuji; Mariko Koizumi; Shigeyuki Takeuchi; Naohito Okude (SIGGRAPH Posters, 2005)

Teleshadow: feeling presence in private spaces. - Shunpei Yasuda; Sho Hashimoto; Mariko Koizumi; Naohito Okude (SIGGRAPH Sketches, 2007)

Sonigraphite: drawing sounds as new physical expression. - Ryoko Kitazawa; Mariko Koizumi; Hiroshi Miyamura; Syugo Suzuki; Naohito Okude (SIGGRAPH Posters, 2008)