The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2011
Filed:
Jul. 19, 2007
Shinya Yamamura, Yokohama, JP;
Yoshiharu Sato, Yokohama, JP;
Katsunori Iwamoto, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The present invention is an authentication method for disclosing identification data of an object and authenticating when referring to data of the object corresponding to the identification data based on the identification data and can associate a tag device and data of a referring entity and authenticate that data of the tag device is referred by a proper referring entity by generating a third value by conducting a predetermined calculation with a temporary first value indicating a most recent referral to the identification data of the object and a temporary reference second value issued to a referring entity of the identification data for each referral, and authenticating a relationship between the object and the referring entity by verifying the third value.