Inventor · disambiguated record
Tohru Yoshinaga
Also filed as: YOSHINAGA TOHRU
31 granted patents·1 pending application·744 citations·filing 1994–2008
98Inventor score
Top patents by PatentIndex Score
32 records- 0190US6401691B1Fuel supply system for relieving fuel pressure pulsations and designing method thereofNIPPON SOKEN·Filed 1999·Granted Jun 11, 2002·61 cites·14 claims
- 0289US5582805AElectrically heated catalytic apparatusTOYOTA MOTOR CO LTD·Filed 1994·Granted Dec 10, 1996·69 cites·12 claims
- 0387US5925819ACombustion monitoring apparatus for internal combustion engineNIPPON SOKEN·Filed 1997·Granted Jul 20, 1999·37 cites·12 claims
- 0487US5884612AGas ventilation system for internal combustion engineNIPPON SOKEN·Filed 1997·Granted Mar 23, 1999·50 cites·24 claims
- 0584US6020742ACombustion monitoring apparatus for internal combustion engineNIPPON SOKEN·Filed 1997·Granted Feb 1, 2000·32 cites·7 claims
- 0683US8033273B2Plasma ignition systemDENSO CORP·Filed 2008·Granted Oct 11, 2011·11 cites·17 claims
- 0777US6653840B2Ion current detecting device for internal combustion engineNIPPON SOKEN·Filed 2002·Granted Nov 25, 2003·14 cites·11 claims
- 0875US5873242AApparatus for purifying exhaust gasNIPPON SOKEN·Filed 1997·Granted Feb 23, 1999·25 cites·18 claims
- 0974US6104195AApparatus for detecting a condition of burning in an internal combustion engineDENSO CORP·Filed 1997·Granted Aug 15, 2000·42 cites·22 claims
- 1073US5678403AAdsorption apparatus for unburnt hydrocarbons for internal combustion engineNIPPON SOKEN·Filed 1995·Granted Oct 21, 1997·36 cites·8 claims
- 1169US7661401B2Laser type engine ignition deviceDENSO CORP·Filed 2006·Granted Feb 16, 2010·8 cites·16 claims
- 1269US6397827B1Spark ignition device for direct injection-type enginesDENSO CORP·Filed 2000·Granted Jun 4, 2002·16 cites·16 claims
- 1368US5914457AActivated charcoal canisterNIPPON DENSO CO·Filed 1996·Granted Jun 22, 1999·34 cites·5 claims
- 1468US5567395ACatalyst carrier for a catalytic converter for purifying an exhaust gas in an internal combustion engineNIPPON SOKEN·Filed 1995·Granted Oct 22, 1996·30 cites·6 claims
- 1566US7948158B2Plasma ignition system with recess porton in the center electrodeDENSO CORP·Filed 2008·Granted May 24, 2011·3 cites·7 claims
- 1666US6734677B2Device and method for detecting engine combustion conditionDENSO CORP·Filed 2002·Granted May 11, 2004·6 cites·5 claims
- 1765US5744104AElectrically heated catalytic converter for an engineTOYOTA MOTOR CO LTD·Filed 1995·Granted Apr 28, 1998·37 cites·9 claims
- 1864US7086363B2Spark plug and ignition apparatus using sameNIPPON SOKEN·Filed 2004·Granted Aug 8, 2006·7 cites·26 claims
- 1964US5791043AProcess of producing metal catalyst carrierNIPPON SOKEN·Filed 1996·Granted Aug 11, 1998·25 cites·4 claims
- 2064US5701736AApparatus for purifying exhaust gasNIPPON SOKEN·Filed 1995·Granted Dec 30, 1997·24 cites·16 claims
- 2162US5915364ACanister for use in evaporative emission control system for automotive vehicleDENSO CORP·Filed 1997·Granted Jun 29, 1999·23 cites·15 claims
- 2261US5554342AElectrical heating type catalytic deviceTOYOTA MOTOR CO LTD·Filed 1995·Granted Sep 10, 1996·23 cites·25 claims
- 2358US5692480AEvaporative emission control system for automotive vehicleNIPPON SOKEN·Filed 1996·Granted Dec 2, 1997·29 cites·5 claims
- 2458US5658536AExhaust gas purifying apparatusNIPPON SOKEN·Filed 1995·Granted Aug 19, 1997·20 cites·6 claims
- 2558US5493859AEngine with an adsorberNIPPON DENSO CO·Filed 1994·Granted Feb 27, 1996·19 cites·11 claims
- 2657US6265814B1Spark plug having a bypass electrode extending along a bypass path between center and ground electrodeNIPPON SOKEN·Filed 1998·Granted Jul 24, 2001·13 cites·44 claims
- 2757US5852274AElectrically heatable catalytic converterNIPPON SOKEN·Filed 1995·Granted Dec 22, 1998·19 cites·1 claims
- 2856US7267116B2Spark plug and ignition apparatus using sameNIPPON SOKEN·Filed 2002·Granted Sep 11, 2007·5 cites·30 claims
- 2956US6675785B2Ignition device for an internal combustion engineDENSO CORP·Filed 2003·Granted Jan 13, 2004·6 cites·2 claims
- 3051US5582803AElectrically heated catalytic apparatusTOYOTA MOTOR CO LTD·Filed 1995·Granted Dec 10, 1996·18 cites·20 claims
- 3139US2008121200A1Plasma type ignition plugDENSO CORP·Filed 2007·Application pending·0 cites
- 3230US5797263AExhaust emission control apparatusNIPPON SOKEN·Filed 1996·Granted Aug 25, 1998·2 cites·5 claims
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