KAKazuhisa AkibaFollowUsage metrics Co-workers & collaboratorsSNSatoshi NarumiSatoshi NarumiYHYukihiro HasegawaYukihiro HasegawaTHTomonobu HasegawaTomonobu HasegawaSTShuji TakadaShuji TakadaMTMiho TeraoMiho TeraoYKYuko Katoh-FukuiYuko Katoh-Fukui