Inventor · disambiguated record
Tetsuo Kumagai
Also filed as: KUMAGAI TETSUO
4 granted patents·1 pending application·59 citations·filing 1998–2020
73Inventor score
Top patents by PatentIndex Score
5 records- 0181US5945445AComposition and method for preventing or treating pine wilting diseaseMERCK & CO INC·Filed 1998·Granted Aug 31, 1999·48 cites·14 claims
- 0276US8571790B2Method for switching reference map data in navigation device, computer readable medium for the same, and navigation deviceTANABE ATSUSHI·Filed 2011·Granted Oct 29, 2013·7 cites·8 claims
- 0372US11656085B2Route searching device and computer programTOYOTA MOTOR CO LTD·Filed 2020·Granted May 23, 2023·1 cites·18 claims
- 0470US9074902B2Navigation apparatus and map information updating methodNAGASAKA HIKARU·Filed 2010·Granted Jul 7, 2015·3 cites·12 claims
- 0543US2011153661A1Navigation device and database update programAISIN AW CO·Filed 2009·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →