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:
Nov. 07, 2006
Filed:
Sep. 23, 2004
Hirokazu Aoshima, Cannes, FR;
Yoshiyasu Takahashi, Yokohama, JP;
Yasuhiro Fujii, Fujisawa, JP;
Hideo Noyama, Yokohama, JP;
Takeshi Matsuki, Musashino, JP;
Hirokazu Aoshima, Cannes, FR;
Yoshiyasu Takahashi, Yokohama, JP;
Yasuhiro Fujii, Fujisawa, JP;
Hideo Noyama, Yokohama, JP;
Takeshi Matsuki, Musashino, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The problem is to make a reliability decision on printed matter without using special ink or a dedicated blank. At least a part of a feature of a state included in printed matter is recorded by using a predetermined method at the time of printing. At the time of verification, the feature of the state acquired from the printed matter is compared with the feature recorded at the time of printing to conduct verification. As this feature, a feature value determined on the basis of a feature of the state of the printed matter, in the state of the printed matter determined in association with spatial distribution of a coloring portion on the printing surface, at the time when printing first information to be recorded is used.