Inventor · disambiguated record
Seiji Oya
Also filed as: OYA SEIJI
24 granted patents·2 pending applications·42 citations·filing 2006–2019
92Inventor score
Top patents by PatentIndex Score
26 records- 0190US9752936B2Temperature sensorNGK SPARK PLUG CO·Filed 2015·Granted Sep 5, 2017·5 cites·4 claims
- 0285US9512770B2Sensor element including an air introduction portion with a cross section having specified aspect ratio and area and sensor including the sameNGK SPARK PLUG CO·Filed 2014·Granted Dec 6, 2016·6 cites·6 claims
- 0384US10247695B2Electrode for gas sensor, and gas sensorNGK SPARK PLUG CO·Filed 2017·Granted Apr 2, 2019·2 cites·5 claims
- 0483US7972488B2Sensor deterioration judging apparatus and sensor deterioration judging methodNGK SPARK PLUG CO·Filed 2006·Granted Jul 5, 2011·11 cites·5 claims
- 0579US8012325B2Plural-cell gas sensor with heaterNGK SPARK PLUG CO·Filed 2006·Granted Sep 6, 2011·7 cites·15 claims
- 0672US9429541B2Gas sensor element, gas sensor and control system of gas sensorYOSHIDA SHIN·Filed 2011·Granted Aug 30, 2016·3 cites·8 claims
- 0769US9739748B2Gas sensor and gas detection elementNGK SPARK PLUG CO·Filed 2015·Granted Aug 22, 2017·1 cites·8 claims
- 0869US8747634B2Gas-sensorOYA SEIJI·Filed 2011·Granted Jun 10, 2014·2 cites·3 claims
- 0968US10012611B2Gas sensor element and gas sensorNGK SPARK PLUG CO·Filed 2015·Granted Jul 3, 2018·1 cites·6 claims
- 1066US8012324B2Sensor element, method of manufacturing a sensor element, and gas sensorNGK SPARK PLUG CO·Filed 2007·Granted Sep 6, 2011·2 cites·11 claims
- 1163US9766134B2Temperature sensitive element and temperature sensorNGK SPARK PLUG CO·Filed 2015·Granted Sep 19, 2017·1 cites·11 claims
- 1261US8992752B2Gas sensor element and gas sensorONKAWA MASAKI·Filed 2012·Granted Mar 31, 2015·1 cites·7 claims
- 1356US9791404B2Electrode for gas sensor, and gas sensorNGK SPARK PLUG CO·Filed 2012·Granted Oct 17, 2017·0 cites·4 claims
- 1453US9594048B2Heater and gas sensor elementNGK SPARK PLUG CO·Filed 2014·Granted Mar 14, 2017·0 cites·8 claims
- 1550US9528960B2Gas sensor element and gas sensorNGK SPARK PLUG CO·Filed 2014·Granted Dec 27, 2016·0 cites·12 claims
- 1648US10254172B2Temperature sensor with improved sheathNGK SPARK PLUG CO·Filed 2014·Granted Apr 9, 2019·0 cites·12 claims
- 1747US10302505B2Temperature sensorNGK SPARK PLUG CO·Filed 2016·Granted May 28, 2019·0 cites·15 claims
- 1846US8187436B2Sensor deterioration judging apparatus and sensor deterioration judging methodOYA SEIJI·Filed 2006·Granted May 29, 2012·0 cites·4 claims
- 1944US10302503B2Temperature sensorNGK SPARK PLUG CO·Filed 2017·Granted May 28, 2019·0 cites·4 claims
- 2044US9989420B2Temperature sensitive element and temperature sensorNGK SPARK PLUG CO·Filed 2015·Granted Jun 5, 2018·0 cites·5 claims
- 2142US9696274B2Gas sensor element and gas sensorNGK SPARK PLUG CO·Filed 2015·Granted Jul 4, 2017·0 cites·9 claims
- 2242US2020049571A1Temperature sensorNGK SPARK PLUG CO·Filed 2019·Application pending·0 cites
- 2339US8097139B2Sensor element, gas sensor, and method of manufacturing the sensor elementOYA SEIJI·Filed 2007·Granted Jan 17, 2012·0 cites·20 claims
- 2438US2010264027A1Gas sensorNGK SPARK CO LTD·Filed 2010·Application pending·0 cites
- 2537US10186355B2Thermistor element and manufacturing method thereforNGK SPARK PLUG CO·Filed 2017·Granted Jan 22, 2019·0 cites·15 claims
- 2631US8431002B2Gas sensorWAKAZONO TOMOHIRO·Filed 2010·Granted Apr 30, 2013·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →