Emo system: a public message system to share emotional information. - Atsuro Ueki; Tsubasa Tokunaga; Yoshimasa Niwa; Masayuki Iwai; Masa Inakage (SIGGRAPH Sketches, 2005)

Takashi's seasons. - Takashi Kawashima; Togo Kida; Yoshimasa Niwa (ACM Multimedia, 2006)

Talktic: a development environment for pervasive computing applications. - Yoshimasa Niwa; Satoru Tokuhisa; Masa Inakage (Advances in Computer Entertainment Technology, 2008)

xtel: a development environment to support rapid prototyping of "ubiquitous content". - Satoru Tokuhisa; Takaaki Ishizawa; Yoshimasa Niwa; Kenji Kasuya; Atsuro Ueki; Sho Hashimoto; Kazuhiko Koriyama; Masa Inakage (TEI, 2009)