Inventor · disambiguated record
Seiji Tokunaga
Also filed as: TOKUNAGA SEIJI
5 granted patents·1 pending application·35 citations·filing 1999–2019
75Inventor score
Top patents by PatentIndex Score
6 records- 0173US6961331B2IP gateway apparatusFUJITSU LTD·Filed 2001·Granted Nov 1, 2005·15 cites·6 claims
- 0268US7209472B2Method of controlling change-over of connection route between media gateway apparatuses, and call agent apparatusFUJITSU LTD·Filed 2001·Granted Apr 24, 2007·16 cites·9 claims
- 0346US11692846B2Map presentation deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Jul 4, 2023·0 cites·11 claims
- 0446US6674763B1Method and system of seizing communication channel enhancing usability of remaining communication channelsFUJITSU LTD·Filed 2000·Granted Jan 6, 2004·1 cites·15 claims
- 0539US2014185096A1Image forming system and image forming apparatusCANON FINETECH INC·Filed 2013·Application pending·0 cites
- 0629US6665394B1Network call control systemFUJITSU LTD·Filed 1999·Granted Dec 16, 2003·3 cites·6 claims
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