KEN SAKAMURA

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8161499 Data processing device and data processing methodExpiredApr 21, 05Apr 17, 12[G06F]
8122261 Data communication apparatus and data communication methodExpiredApr 21, 05Feb 21, 12[G06Q, G06F]
7403924 Communication terminal, portable terminal, circulating server, providing server, electronic book distributing method, and electronic book distributing programExpiredMay 20, 03Jul 22, 08[G06Q]
7357329 IC card, terminal device, and data communication methodExpiredJun 09, 03Apr 15, 08[G06K]
2007/0250,455 COMMUNICATION TERMINAL, PORTABLE TERMINAL, CIRCULATING SERVER, PROVIDING SERVER, ELECTRONIC BOOK DISTRIBUTING METHOD, AND ELETRONIC BOOK DISTRIBUTING PROGRAMAbandonedMay 25, 07Oct 25, 07[G06Q]
2007/0149,867 COMMUNICATION TERMINAL, SERVER APPARATUS, ELECTRONIC WORTH CHARGING METHOD, AND ELECTRONIC WORTH CHARGING PROGRAMAbandonedMar 09, 07Jun 28, 07[A61B]
2006/0163,364 Ic chip, card and mobile terminal connected to the sameAbandonedJun 09, 03Jul 27, 06[G06K]
2004/0044,625 Digital contents issuing system and digital contents issuing methodAbandonedJun 10, 03Mar 04, 04[G06F]
2004/0030,896 IC card and cryptographic communication method between IC cardsAbandonedJun 10, 03Feb 12, 04[H04L]
2003/0228,886 Electronic value data communication method, communication system, IC card, portable terminal, and communicationAbandonedJun 03, 03Dec 11, 03[H04M]

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