About UMEMURA TAKERU
About URANO SACHI
About SATOI DAIKI
About HOSHINO JUN'ICHI
About 日本感性工学会論文誌(Web)
About market
About information collection
About communication
About communication system
About recreation
About interest(concern)
About information retrieval
About communication system
About niche market
About social exchange
About Hobbies
About Retrieval systems
About ニッチ
About 市場
About 情報獲得
About 社会的交流
About 支援
About コミュニケーション