A Multimedia MUD System for the Digital Museum. - Tomonori Usaka; Shunsuke Yura; Kazuhiko Fujimori; Hirohisa Mori; Ken Sakamura (APCHI, 1998)

Design and Implementation of the Browser for the Multimedia Multi-User Dungeon of the Digital Museum. - Shunsuke Yura; Tomonori Usaka; Kazuhiko Fujimori; Ken Sakamura (APCHI, 1998)

Video Avatar: Embedded Video for Collaborative Virtual Environment. - Shunsuke Yura; Tomonori Usaka; Ken Sakamura (ICMCS, Vol. 2, 1999)

TENeT: A Framework for Distributed Smartcards. - Masayuki Terada; Kensaku Mori; Kazuhiko Ishii; Sadayuki Hongo; Tomonori Usaka; Noboru Koshizuka; Ken Sakamura (SPC, 2005)

A Framework for Distributed Inter-smartcard Communication. - Masayuki Terada; Kensaku Mori; Kazuhiko Ishii; Sadayuki Hongo; Tomonori Usaka; Noboru Koshizuka; Ken Sakamura (Inf. Media Technol., 2006)

SUCAS: An Architecture for Secure User Centric Attestation in Location-based Services. - Lee Fueng Yap; Takeshi Yashiro; Masahiro Bessho; Tomonori Usaka; M. Fahim Ferdous Khan; Noboru Koshizuka; Ken Sakamura (SocialCom/PASSAT, 2010)

eTNet: A Smart Card Network Architecture for Flexible Electronic Commerce Services. - Takeshi Yashiro; M. Fahim Ferdous Khan; Ito So; Masahiro Bessho; Shinsuke Kobayashi; Tomonori Usaka; Noboru Koshizuka; Ken Sakamura (NTMS, 2011)

SUCAS: smart-card-based secure user-centric attestation framework for location-based services. - Lee Fueng Yap; Takeshi Yashiro; Masahiro Bessho; Tomonori Usaka; M. Fahim Ferdous Khan; Noboru Koshizuka; Ken Sakamura (Int. J. Inf. Priv. Secur. Integr., 2012)