Registers – Records – Conductive
Reexamination Certificate
2007-12-18
2007-12-18
Kim, Ahshik (Department: 2876)
Registers
Records
Conductive
C235S379000
Reexamination Certificate
active
11324283
ABSTRACT:
A method of checking a sheet as to forgery thereof, the sheet being provided with an electronic circuit chip from or in which information can be read out or written and having visible information. The method includes a step of encrypting the visible information of the sheet and storing the encrypted visible information in the electronic circuit chip, and a step of determining discriminatively the authenticity of the sheet by comparing the visible information of the sheet with the information stored in the electronic circuit chip.
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Isobe Asahiko
Okamoto Chikashi
Takaragi Kazuo
Tsuji Kazutaka
Tsunemi Yasuhiro
Hitachi , Ltd.
Hitachi Research Institute
Kim Ahshik
Mattingly ,Stanger ,Malur & Brundidge, P.C.
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