sentences:  Passnet
  
  The name “Passnet” was originality a name for the stored-fare system and many of each Passnet Card issuers had a name for their cards, for instance, SF Metro Card from TRTA and its successor Tokyo Metro or SF Tobu Card from Tobu.Later, the cards themselves came to be called “Passnet”
  
  The Passnet Card used almost the same system as IO Card by JR East in view of uniting the card system.