Inventor · disambiguated record
Takamasa Kawaguchi
Also filed as: KAWAGUCHI TAKAMASA
7 granted patents·1 pending application·17 citations·filing 2004–2020
77Inventor score
Top patents by PatentIndex Score
8 records- 0171US8773309B2Positional information transmitter, positional information receiver, and position measuring systemKAWAGUCHI TAKAMASA·Filed 2011·Granted Jul 8, 2014·6 cites·11 claims
- 0257US7664066B2Wireless device, method for wireless communication system, and wireless communication systemHITACHI LTD·Filed 2004·Granted Feb 16, 2010·7 cites·16 claims
- 0349US7994970B2Positioning system, position information transmitter, communication terminal, and control method of the positioning systemHITACHI LTD·Filed 2009·Granted Aug 9, 2011·2 cites·13 claims
- 0447US11789162B2Positioning apparatus and augmentation information generation apparatusMITSUBISHI ELECTRIC CORP·Filed 2020·Granted Oct 17, 2023·0 cites·14 claims
- 0546US8432311B2GPS signal transmitter and signal transmission method thereofEBATA TOMOICHI·Filed 2009·Granted Apr 30, 2013·2 cites·14 claims
- 0642US2021026970A1Security evaluation server and security evaluation methodHITACHI LTD·Filed 2018·Application pending·0 cites
- 0740US8299965B2Positioning system, position information transmitter, communication terminal, and control method of the positioning systemKAWAGUCHI TAKAMASA·Filed 2011·Granted Oct 30, 2012·0 cites·8 claims
- 0834US9310489B2Positional information transmitter, communication terminal, and positioning system using position dataKAWAGUCHI TAKAMASA·Filed 2010·Granted Apr 12, 2016·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →