Inventor · disambiguated record
Toshio Ishii
Also filed as: ISHII TOSHIO
105 granted patents·10 pending applications·2,663 citations·filing 1980–2023
99Inventor score
Top patents by PatentIndex Score
115 records- 0196US5396176ACombustion condition diagnosis utilizing multiple sampling of ionic currentHITACHI LTD·Filed 1992·Granted Mar 7, 1995·55 cites·22 claims
- 0295US5575265ADiagnostic method for evaporated fuel gas purging systemHITACHI LTD·Filed 1995·Granted Nov 19, 1996·74 cites·12 claims
- 0394US6305361B1Evaporative system and method of diagnosing sameHITACHI LTD·Filed 2000·Granted Oct 23, 2001·37 cites·12 claims
- 0494US5802843AMethod and apparatus for diagnosing engine exhaust gas purification systemHITACHI LTD·Filed 1995·Granted Sep 8, 1998·83 cites·3 claims
- 0594US5339156AFacsimile mail system linked to data communication systemFUJITSU LTD·Filed 1992·Granted Aug 16, 1994·157 cites·42 claims
- 0692US5559721AMulti-media information transfer systemFUJITSU LTD·Filed 1992·Granted Sep 24, 1996·126 cites·12 claims
- 0791US9203518B2Optical transmitter and waveform compensation methodISHII TOSHIO·Filed 2012·Granted Dec 1, 2015·13 cites·4 claims
- 0891US6105556AEvaporative system and method of diagnosing sameHITACHI LTD·Filed 1997·Granted Aug 22, 2000·51 cites·3 claims
- 0991US5241480AMethod and apparatus for detecting combustion conditions in multicylinder internal combustion engine based upon engine speed evaluationHITACHI LTD·Filed 1991·Granted Aug 31, 1993·71 cites·7 claims
- 1090US5964811AControl method and apparatus for diagnosing vehiclesHITACHI LTD·Filed 1997·Granted Oct 12, 1999·94 cites·37 claims
- 1189US7526223B2Heat exhausting structure and image forming apparatusRICOH KK·Filed 2006·Granted Apr 28, 2009·10 cites·18 claims
- 1289US6333103B1Aluminum oxide-coated articleHITACHI METALS LTD·Filed 1999·Granted Dec 25, 2001·96 cites·12 claims
- 1388US6172545B1Delay circuit on a semiconductor deviceNEC CORP·Filed 1998·Granted Jan 9, 2001·58 cites·6 claims
- 1488US6085132AControl method and apparatus for diagnosing vehiclesHITACHI LTD·Filed 1998·Granted Jul 4, 2000·44 cites·3 claims
- 1587US6357224B1Engine exhaust gas purifying apparatusHITACHI LTD·Filed 2000·Granted Mar 19, 2002·36 cites·16 claims
- 1686US10659154B2Optical module and control method of controlling center wavelength of optical filterFUJITSU OPTICAL COMPONENTS LTD·Filed 2019·Granted May 19, 2020·7 cites·14 claims
- 1786US5485374ACombustion-conditon diagnostic system and method for a multicylinder engineHITACHI LTD·Filed 1993·Granted Jan 16, 1996·43 cites·16 claims
- 1886US5467277AApparatus and method for automobile control using a control characteristic which can be adjusted by the driverHITACHI LTD·Filed 1992·Granted Nov 14, 1995·59 cites·2 claims
- 1986US5341642ASystem for diagnosing engine exhaust gas purifying device and system for diagnosing sensorHITACHI LTD·Filed 1992·Granted Aug 30, 1994·42 cites·18 claims
- 2083US6748919B2Internal combustion engine and fuel injection control device thereforHITACHI LTD·Filed 2002·Granted Jun 15, 2004·23 cites·10 claims
- 2183US6502388B2Engine exhaust gas cleaning systemHITACHI LTD·Filed 2001·Granted Jan 7, 2003·28 cites·21 claims
- 2283US6156383AAlumina coated tool and production method thereofHITACHI METALS LTD·Filed 1999·Granted Dec 5, 2000·41 cites·3 claims
- 2383US5526643ASystem for diagnosing deterioration of catalystHITACHI LTD·Filed 1994·Granted Jun 18, 1996·38 cites·14 claims
- 2483US4373187ACorrective feedback technique for controlling air-fuel ratio for an internal combustion engineHITACHI LTD·Filed 1980·Granted Feb 8, 1983·25 cites·26 claims
- 2582US5091856AControl apparatus for automobilesHITACHI LTD·Filed 1990·Granted Feb 25, 1992·178 cites·24 claims
- 2681US5560199AMalfunction monitoring apparatus and method for secondary air supply system of internal combustion engineHITACHI LTD·Filed 1994·Granted Oct 1, 1996·54 cites·35 claims
- 2780US5649420ASystem for diagnosing deterioration of catalystHITACHI LTD·Filed 1996·Granted Jul 22, 1997·38 cites·12 claims
- 2879US6426122B1Method for hot-dip galvanizingNIPPON KOKAN KK·Filed 2000·Granted Jul 30, 2002·21 cites·4 claims
- 2979US5557933AMalfunction diagnosis apparatus for internal combustion engineHITACHI LTD·Filed 1994·Granted Sep 24, 1996·30 cites·23 claims
- 3079US5237818AConversion efficiency measuring apparatus of catalyst used for exhaust gas purification of internal combustion engine and the method of the sameHITACHI LTD·Filed 1992·Granted Aug 24, 1993·27 cites·33 claims
- 3178US7424801B2System for diagnosing deterioration of catalystHITACHI LTD·Filed 2006·Granted Sep 16, 2008·8 cites·2 claims
- 3277US10530495B2Optical receiver, optical transceiver using the same, and control method of reception of optical signalsFUJITSU OPTICAL COMPONENTS LTD·Filed 2018·Granted Jan 7, 2020·3 cites·13 claims
- 3376US5400592ADiagnostic apparatus for catalytic converter of an internal combustion engineHITACHI LTD·Filed 1994·Granted Mar 28, 1995·47 cites·33 claims
- 3475US7117664B2Diagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 2004·Granted Oct 10, 2006·17 cites·6 claims
- 3575US6027333ARadiant tube burnerNIPPON KOKAN KK·Filed 1995·Granted Feb 22, 2000·53 cites·20 claims
- 3675US5972495AAlumina coated tool and production method thereofHITACHI METALS LTD·Filed 1997·Granted Oct 26, 1999·30 cites·6 claims
- 3775US5215062AFuel control device and method for internal combustion engineHITACHI LTD·Filed 1992·Granted Jun 1, 1993·28 cites·8 claims
- 3874US6089080ADiagnosis apparatus for evaporation systemHITACHI LTD·Filed 1997·Granted Jul 18, 2000·29 cites·6 claims
- 3974US5740676ADiagnostic apparatus for exhaust gas clarification apparatus for internal combustion engineHITACHI LTD·Filed 1996·Granted Apr 21, 1998·32 cites·8 claims
- 4073US7114326B2System for diagnosing deterioration of catalystHITACHI LTD·Filed 2003·Granted Oct 3, 2006·17 cites·19 claims
- 4173US6502541B2Control system for direct fuel injection engineHITACHI LTD·Filed 2001·Granted Jan 7, 2003·17 cites·9 claims
- 4273US6315829B1Apparatus for hot-dip coating a steel stripNIPPON KOKAN KK·Filed 2000·Granted Nov 13, 2001·13 cites·10 claims
- 4373US5921078ADiagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 1997·Granted Jul 13, 1999·17 cites·12 claims
- 4472US6523340B1Method and apparatus for diagnosing engine exhaust gas purification systemHITACHI LTD·Filed 2000·Granted Feb 25, 2003·18 cites·6 claims
- 4572US6383267B1Exhaust gas cleaning system for an engineHITACHI LTD·Filed 2000·Granted May 7, 2002·29 cites·14 claims
- 4671US6770140B2Apparatus for hot dip galvanizingNIPPON KOKAN KK·Filed 2002·Granted Aug 3, 2004·12 cites·13 claims
- 4771US5989108ADouble side grinding apparatus for flat disklike workKOYO MACHINE IND CO LTD·Filed 1997·Granted Nov 23, 1999·37 cites·16 claims
- 4870US7389637B2Diagnostic equipment for an exhaust gas cleaning apparatusHITACHI LTD·Filed 2006·Granted Jun 24, 2008·2 cites·3 claims
- 4970US6330510B1Diagnosing system for engineHITACHI LTD·Filed 1999·Granted Dec 11, 2001·22 cites·4 claims
- 5070US5945828AEngine combustion condition detecting apparatus equipped with malfunction diagnosing apparatusHITACHI LTD·Filed 1998·Granted Aug 31, 1999·21 cites·5 claims
Showing the top 50 of 115 patent records by PatentIndex Score.
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