About UMEZAWA TAKESHI
About 情報通信研究機構
About INOUE MASUGI
About 情報通信研究機構
About 電子情報通信学会技術研究報告
About information network
About personal communication
About privacy
About authentication
About user profile
About data protection
About portable telephone
About personal network
About Data protection
About Communication systems in general
About プライバシ
About 認証
About 手法