Inventor
UKAI NOBUMITSU
JP2 patents
Patents
2 patentsUS7418425B2Aug 26, 2008
Information processing system, information processing method, electronic money service providing system, and recording medium
SONY CORP6 citations60
US7703672B2Apr 27, 2010
Electronic money management system, electronic money management method and computer program
SONY CORP3 citations55