MATSUSHITA COMMUNICATION INDUSTRIAL CO., LTD.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6947029 Handwritten data input device and method, and authenticating device and methodExpiredAug 03, 01Sep 20, 05[G09G]
6813357 Exclusive key sharing methodExpiredAug 24, 00Nov 02, 04[H04N]
2004/0216,037 Document processorAbandonedMay 19, 04Oct 28, 04[G06F]
6804507 Mobile paging telephone with an automatic call back functionExpiredOct 03, 02Oct 12, 04[H04M]
6032029 Receiver selecting either a first demodulated signal or a second demodulated signal in accordance with characteristics of a received signalExpiredMar 24, 97Feb 29, 00[H04B]
5500856 Transmission de-correlator for eliminating interference in a CDMA communication systemExpiredJul 28, 94Mar 19, 96[H04B, H04J]
5471323 Solid state video camera having improved chromatic aberration suppression and moire suppressionExpiredMay 17, 94Nov 28, 95[H04N]
5406330 Video camera having image sensors driven by different vertical drive signalsExpiredJul 20, 93Apr 11, 95[H04N]
4939785 Radio communication network system comprising a connecting equipment unit operable in different modesExpiredMay 31, 88Jul 03, 90[H04M, H04B]
4935735 Selective call radio receiver silent alert mode entry systemExpiredJan 31, 86Jun 19, 90[H04Q]
4882746 Cordless telephone systemExpiredMar 17, 88Nov 21, 89[H04M]
4852148 Radio telephone systemExpiredJun 15, 88Jul 25, 89[H04Q]
4843622 Communication control system capable of searching a called telephone set in a mobile radio telephone networkExpiredApr 04, 88Jun 27, 89[H01Q]
4262312 Magnetic recording and printing device for card mediumsExpiredMar 12, 79Apr 14, 81[G11B]

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