Inventor · disambiguated record
Yuji Oi
Also filed as: OI YUJI
7 granted patents·1 pending application·106 citations·filing 1997–2020
84Inventor score
Files withNGK SPARK PLUG CO7
Top patents by PatentIndex Score
8 records- 0179US7573275B2Temperature sensor control apparatusNGK SPARK PLUG CO·Filed 2006·Granted Aug 11, 2009·13 cites·14 claims
- 0276US6120677ATemperature control for all range oxygen sensorNGK SPARK PLUG CO·Filed 1997·Granted Sep 19, 2000·47 cites·10 claims
- 0370US6099717AMethod of and apparatus for detecting a deteriorated condition of a wide range air-fuel ratio sensorNGK SPARK PLUG CO·Filed 1997·Granted Aug 8, 2000·28 cites·3 claims
- 0451US12174139B2Gas sensor control device, gas sensor control system, and gas sensor systemNGK SPARK PLUG CO·Filed 2020·Granted Dec 24, 2024·0 cites·3 claims
- 0547US7416649B2Oxygen concentration detection system and vehicle control system having the sameNGK SPARK PLUG CO·Filed 2004·Granted Aug 26, 2008·6 cites·16 claims
- 0646US5976350AMethod of and apparatus for detecting an activated condition of a wide range air-fuel ratio sensorNGK SPARK PLUG CO·Filed 1997·Granted Nov 2, 1999·12 cites·4 claims
- 0744US2004238378A1Nox measurement device, nox sensor self-diagnosis device, and self-diagnosis method thereofFiled 2003·Application pending·0 cites
- 0841US12163917B2Sensor system, and sensor system failure detecting methodNGK SPARK PLUG CO·Filed 2020·Granted Dec 10, 2024·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →