Assignee
TAKAHATA SEIJI
JP·3 granted patents·19 citations·filing 2007–2008
Top patents by PatentIndex Score
3 records- 0180US8396660B2Road map data structure, road map data storage medium, navigation device, and method of generating road map dataTAKAHATA SEIJI·Filed 2008·Granted Mar 12, 2013·16 cites·7 claims
- 0258US8510042B2Navigation device and data update systemTAKAHATA SEIJI·Filed 2008·Granted Aug 13, 2013·2 cites·11 claims
- 0351US8892517B2Data updating system, navigation device, server, and method of data updatingTAKAHATA SEIJI·Filed 2007·Granted Nov 18, 2014·1 cites·16 claims
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