Inventor · disambiguated record
Futoshi Ichiyanagi
Also filed as: ICHIYANAGI FUTOSHI
9 granted patents·5 pending applications·42 citations·filing 2000–2007
84Inventor score
Top patents by PatentIndex Score
14 records- 0177US7370545B2Oxygen sensorHITACHI LTD·Filed 2006·Granted May 13, 2008·5 cites·10 claims
- 0277US6332966B1Air/fuel ratio detecting arrangementUNISIA JECS CORP·Filed 2000·Granted Dec 25, 2001·17 cites·16 claims
- 0365US7704358B2Oxygen sensorHITACHI LTD·Filed 2007·Granted Apr 27, 2010·2 cites·16 claims
- 0465US6889536B2Air/fuel-ratio detecting apparatusHITACHI LTD·Filed 2003·Granted May 10, 2005·6 cites·13 claims
- 0553US6918385B2Air-fuel ratio detecting apparatus of engine and method thereofHITACHI LTD·Filed 2002·Granted Jul 19, 2005·8 cites·19 claims
- 0652US7122103B2Air/fuel ratio detection apparatusHITACHI LTD·Filed 2003·Granted Oct 17, 2006·3 cites·18 claims
- 0745US2007084725A1Oxygen sensorHITACHI LTD·Filed 2006·Application pending·0 cites
- 0845US2007108051A1Oxygen sensorHITACHI LTD·Filed 2006·Application pending·0 cites
- 0944US7258772B2Oxygen sensor and method of manufacturing sameHITACHI LTD·Filed 2003·Granted Aug 21, 2007·0 cites·11 claims
- 1044US2006272944A1Oxygen sensorHITACHI LTD·Filed 2006·Application pending·0 cites
- 1141US7655122B2Oxygen concentration detecting elementHITACHI LTD·Filed 2004·Granted Feb 2, 2010·1 cites·25 claims
- 1239US2005274613A1Oxygen-concentration detecting element and method of producing sameHITACHI LTD·Filed 2005·Application pending·0 cites
- 1339US2005274614A1Oxygen-concentration detecting element and method of producing sameHITACHI LTD·Filed 2005·Application pending·0 cites
- 1435US7258771B2Air/fuel ratio detection apparatusHITACHI LTD·Filed 2002·Granted Aug 21, 2007·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →