Assignee

HITACHI RES INST

JP·1 granted patent·7 citations·filing 2003–2003

Technology mixG06Q1 G07D1

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0164US7007854B2Method of checking authenticity of sheet with built-in electronic circuit chipHITACHI RES INST·Filed 2003·Granted Mar 7, 2006·7 cites·6 claims

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