Inventor
ITSUKI REI
JP4 patents
Patents
4 patentsUS7182257B2Feb 27, 2007
Distribution management method and system
HITACHI LTD18 citations91
US7173515B2Feb 6, 2007
RFID tag, and RFID tag-related determining device and method, and management system and method
HITACHI LTD19 citations91
US6880753B2Apr 19, 2005
Distribution management method and system
HITACHI LTD20 citations91
US5212768AMay 18, 1993
Method and apparatus for processing knowledge
HITACHI LTD24 citations87