Inventor · disambiguated record
Tohru Ishikawa
Also filed as: ISHIKAWA TOHRU
56 granted patents·9 pending applications·629 citations·filing 1987–2024
99Inventor score
Top patents by PatentIndex Score
65 records- 0195US9677526B2Spark-ignition direct fuel injection valveHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2012·Granted Jun 13, 2017·10 cites·8 claims
- 0294US6345601B1Direct injection fuel injector and internal combustion engine mounting the sameHITACHI LTD·Filed 2000·Granted Feb 12, 2002·42 cites·8 claims
- 0393US9593657B2Drive unit of fuel injection deviceKUSAKABE RYO·Filed 2011·Granted Mar 14, 2017·11 cites·18 claims
- 0492US7946274B2Electromagnetic fuel injector and method for assembling the sameHITACHI LTD·Filed 2010·Granted May 24, 2011·7 cites·16 claims
- 0592US6474572B1Fuel-injection valveHITACHI LTD·Filed 2000·Granted Nov 5, 2002·33 cites·6 claims
- 0691US9726127B2Fuel injection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Aug 8, 2017·3 cites·18 claims
- 0790US9541046B2Fuel injection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Jan 10, 2017·5 cites·20 claims
- 0890US6092743AFuel injection valveHITACHI LTD·Filed 1998·Granted Jul 25, 2000·54 cites·4 claims
- 0988US10995655B2Fuel injection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted May 4, 2021·3 cites·9 claims
- 1088US10704518B2Spark-ignition direct fuel injection valveHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Jul 7, 2020·2 cites·3 claims
- 1188US7721713B2Electromagnetic fuel injector and method for assembling the sameHITACHI LTD·Filed 2007·Granted May 25, 2010·11 cites·35 claims
- 1287US10024288B2Spark-ignition direct fuel injection valveHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Jul 17, 2018·2 cites·6 claims
- 1387US8960157B2Drive device for electromagnetic fuel injection valveKUSAKABE RYO·Filed 2012·Granted Feb 24, 2015·8 cites·20 claims
- 1487US7334563B2Fuel injector and in-cylinder direct-injection gasoline engineHITACHI LTD·Filed 2006·Granted Feb 26, 2008·16 cites·12 claims
- 1585US9103311B2Fuel injection valveYASUKAWA YOSHIHITO·Filed 2011·Granted Aug 11, 2015·5 cites·6 claims
- 1684US5915352AIn-cylinder fuel injection device and internal combustion engine mounting the sameHITACHI LTD·Filed 1997·Granted Jun 29, 1999·43 cites·12 claims
- 1783US7774126B2Electromagnetic fuel injection valve deviceHITACHI LTD·Filed 2008·Granted Aug 10, 2010·12 cites·9 claims
- 1883US6453872B1Fuel injection valve and internal combustion engine mounting the sameHITACHI LTD·Filed 2000·Granted Sep 24, 2002·20 cites·65 claims
- 1982US9599083B2Fuel injection valveHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Mar 21, 2017·4 cites·5 claims
- 2082US7819344B2Electro-magneto fuel injectorHITACHI LTD·Filed 2007·Granted Oct 26, 2010·9 cites·16 claims
- 2182US7789073B2Fuel injection control apparatusHITACHI LTD·Filed 2008·Granted Sep 7, 2010·11 cites·2 claims
- 2282US5012982AElectromagnetic fuel injectorHITACHI LTD·Filed 1989·Granted May 7, 1991·34 cites·17 claims
- 2381US8113177B2Electromagnetic fuel injector and method for assembling the sameHAYATANI MASAHIKO·Filed 2011·Granted Feb 14, 2012·3 cites·8 claims
- 2480US7775463B2Electromagnetic fuel injection valveHITACHI LTD·Filed 2007·Granted Aug 17, 2010·9 cites·16 claims
- 2580US6935578B1Fuel injection valveHITACHI CAR ENG CO LTD·Filed 2000·Granted Aug 30, 2005·19 cites·18 claims
- 2680US4843546APOS system with means for automatically reconfiguring the center PLU and local filesHITACHI LTD·Filed 1987·Granted Jun 27, 1989·49 cites·18 claims
- 2779US6675766B2Fuel injection valve and internal combustion engine mounting the sameHITACHI LTD·Filed 2002·Granted Jan 13, 2004·13 cites·7 claims
- 2878US9291135B2Electromagnetic fuel injection valveOHWADA HISASHI·Filed 2010·Granted Mar 22, 2016·5 cites·10 claims
- 2978US7607418B2Fuel injection nozzle and method of holding the sameHITACHI LTD·Filed 2008·Granted Oct 27, 2009·8 cites·6 claims
- 3075US6766789B2Injector driving control apparatusHITACHI LTD·Filed 2002·Granted Jul 27, 2004·22 cites·8 claims
- 3175US5714729ATIG welding method and welding torch thereforTOSHIBA KK·Filed 1996·Granted Feb 3, 1998·37 cites·22 claims
- 3273US9528481B2Fuel injection valveHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Dec 27, 2016·1 cites·6 claims
- 3372US10288022B2Electromagnetic fuel injectorHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted May 14, 2019·2 cites·16 claims
- 3471US8991783B2Fuel injection valve for internal combustion engineABE MOTOYUKI·Filed 2009·Granted Mar 31, 2015·7 cites·5 claims
- 3571US6367720B1Electromagnetic fuel injection valveHITACHI LTD·Filed 2000·Granted Apr 9, 2002·12 cites·10 claims
- 3670US11703021B2Fuel injection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2021·Granted Jul 18, 2023·0 cites·20 claims
- 3770US6685114B2Electromagnetic fuel injection valveHITACHI LTD·Filed 2002·Granted Feb 3, 2004·11 cites·13 claims
- 3869US10900435B2Drive unit of fuel injection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Jan 26, 2021·0 cites·4 claims
- 3969US8371515B2Electro-magneto fuel injectorHITACHI LTD·Filed 2009·Granted Feb 12, 2013·4 cites·9 claims
- 4069US2019063387A1Fuel Injection DeviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Application pending·0 cites
- 4167US10859047B2Fuel injection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Dec 8, 2020·0 cites·11 claims
- 4267US7357123B2Electromagnetic actuator, fuel injection valve, method of controlling fuel injection valve, and method of driving the sameHITACHI LTD·Filed 2005·Granted Apr 15, 2008·6 cites·5 claims
- 4367US6279532B1Fuel pressure control apparatus for cylinder injection engineHITACHI LTD·Filed 1998·Granted Aug 28, 2001·24 cites·35 claims
- 4466US10240567B2Fuel injection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Mar 26, 2019·0 cites·6 claims
- 4565US10280862B2Drive unit of fuel injection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted May 7, 2019·0 cites·10 claims
- 4662US10082117B2Fuel injection deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Sep 25, 2018·0 cites·8 claims
- 4762US7163162B2Fuel-injection valveHITACHI LTD·Filed 2002·Granted Jan 16, 2007·7 cites·13 claims
- 4862US5346137AElectromagnetic fuel injection valveHITACHI LTD·Filed 1993·Granted Sep 13, 1994·19 cites·27 claims
- 4961US6915968B2Fuel injectorHITACHI CAR ENG CO LTD·Filed 2003·Granted Jul 12, 2005·8 cites·18 claims
- 5060US8328121B2Multihole injectorIRINO YUSUKE·Filed 2009·Granted Dec 11, 2012·4 cites·6 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →