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. 14, 2006
Filed:
Nov. 25, 2003
Yuuki Tomoeda, Yokohama, JP;
Hiroshi Watanabe, Yokohama, JP;
Hideo Shimizu, Kawasaki, JP;
Kenji Kojima, Kawasaki, JP;
Tatsuyuki Matsushita, Yokohama, JP;
Kentaro Umesawa, Yokohama, JP;
Hideyuki Miyake, Yokohama, JP;
Yuuki Tomoeda, Yokohama, JP;
Hiroshi Watanabe, Yokohama, JP;
Hideo Shimizu, Kawasaki, JP;
Kenji Kojima, Kawasaki, JP;
Tatsuyuki Matsushita, Yokohama, JP;
Kentaro Umesawa, Yokohama, JP;
Hideyuki Miyake, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A method of setting validity period of IC card, comprises preparing IC card including change unit whose state changes with lapse of time starting from initial state without external power, measuring unit configured to measure state of change unit so as to generate information indicating whether or not validity period has elapsed, and operation unit configured to be operable if information indicates that validity period fails to have yet elapsed, and to be inoperable if information indicates that validity period has elapsed, preparing IC card case capable to house IC card by user, IC card case including identification unit configured to determine whether or not user is legitimate, performing user identification utilizing identification unit, when IC card is housed in IC card case, and transmitting signal to change unit in IC card depending on result of user identification, signal initializing change unit to initial state.