研究分野: %255Bja%255D%25BE%25F0%25CA%25F3%25C4%25CC%25BF%25AE%25B8%25A6%25B5%25E6%25B5%25A1%25B9%25BD%255B%252Fja%255D%255Ben%255DNational%2523Institute%2523of%2523Information%2523and%2523Communications%2523Technology%2528NICT%2529%255B%252Fen%255D