About KOTSUKA NOBUHIDE
About KDDI研究所
About MORIKAWA DAISUKE
About KDDI
About portable telephone
About user profile
About recording
About human behavior
About information network
About physical distribution
About data management
About commodity
About buying behavior
About production management
About portable telephone
About action history
About ライフログ
About ubiquitous network
About Other information processing
About Marketing in general
About ライフログ
About 実空間
About プロファイル
About 流通