Inventor · disambiguated record
Yuichi Kitagawa
Also filed as: KITAGAWA YUICHI
50 granted patents·6 pending applications·933 citations·filing 1987–2023
98Inventor score
Files withKOKUSAN DENKI CO15NISSAN MOTOR11ASAHI CHEMICAL IND7UNIV HOKKAIDO NAT UNIV CORP7TOYOTA MOTOR CO LTD6
Top patents by PatentIndex Score
56 records- 0194US10654439B2Airbag device for front passenger seat and airbag folding methodTOYOTA MOTOR CO LTD·Filed 2018·Granted May 19, 2020·13 cites·10 claims
- 0294US5134199ADiene block polymer and polymer compositionASAHI CHEMICAL IND·Filed 1988·Granted Jul 28, 1992·69 cites·5 claims
- 0393US4835209ARubber for tire treads and compositions thereofASAHI CHEMICAL IND·Filed 1987·Granted May 30, 1989·65 cites·17 claims
- 0492US10703322B2Vehicle side airbag deviceTOYOTA MOTOR CO LTD·Filed 2018·Granted Jul 7, 2020·10 cites·12 claims
- 0590US10800368B2Vehicle occupant protection device, airbag control method, and airbag folding methodTOYOTA MOTOR CO LTD·Filed 2018·Granted Oct 13, 2020·8 cites·10 claims
- 0690US6843524B2Front body structure for vehicleNISSAN MOTOR·Filed 2002·Granted Jan 18, 2005·50 cites·17 claims
- 0790US4914248ADiene polymers, process for production, thereof, and rubber compositions containing sameASAHI CHEMICAL IND·Filed 1987·Granted Apr 3, 1990·42 cites·8 claims
- 0889US6312045B2Vehicle body side structureNISSAN MOTOR·Filed 2001·Granted Nov 6, 2001·40 cites·26 claims
- 0987US10745614B2Rare-earth complex polymerUNIV HOKKAIDO NAT UNIV CORP·Filed 2017·Granted Aug 18, 2020·3 cites·4 claims
- 1087US9493629B2Modified butadiene-based polymer compositionYAMADA HARUO·Filed 2006·Granted Nov 15, 2016·12 cites·4 claims
- 1187US5868457AStructural member of vehicle bodyNISSAN MOTOR·Filed 1997·Granted Feb 9, 1999·59 cites·22 claims
- 1286US10682973B2Vehicle knee airbag device and knee airbag folding methodTOYOTA MOTOR CO LTD·Filed 2018·Granted Jun 16, 2020·6 cites·9 claims
- 1386US9315600B2Method for producing modified conjugated diene polymer, modified conjugated diene polymer, modified conjugated diene polymer composition, rubber composition and tireHAYATA DAISUKE·Filed 2012·Granted Apr 19, 2016·13 cites·20 claims
- 1486US6817654B2Reinforcing structure for body frame of vehicleNISSAN MOTOR·Filed 2003·Granted Nov 16, 2004·42 cites·41 claims
- 1586US5118160ACar body member with beadsNISSAN MOTOR·Filed 1990·Granted Jun 2, 1992·58 cites·16 claims
- 1684US11499093B2Rare earth complex and light emitting elementUNIV HOKKAIDO NAT UNIV CORP·Filed 2018·Granted Nov 15, 2022·3 cites·5 claims
- 1784US6631942B1Front body structure for vehicleNISSAN MOTOR·Filed 2002·Granted Oct 14, 2003·35 cites·8 claims
- 1884US5017660ASelectively, partially hydrogenated polymer and rubber composition and impact resistant styrenic resin containing the sameASAHI CHEMICAL IND·Filed 1988·Granted May 21, 1991·31 cites·15 claims
- 1983US6520577B2Vehicle seatNISSAN MOTOR·Filed 2001·Granted Feb 18, 2003·46 cites·18 claims
- 2082US5685599AStructural member of vehicle bodyNISSAN MOTOR·Filed 1996·Granted Nov 11, 1997·48 cites·10 claims
- 2179US7503308B2Fuel injection and ignition control method and fuel injection and ignition control device of engineKOKUSAN DENKI CO·Filed 2008·Granted Mar 17, 2009·10 cites·5 claims
- 2274US6283529B2Footrest for vehicleNISSAN MOTOR·Filed 2000·Granted Sep 4, 2001·31 cites·17 claims
- 2372US5886108AProcess for hydrogenating conjugated diene polymerASAHI CHEMICAL IND·Filed 1997·Granted Mar 23, 1999·27 cites·6 claims
- 2471US7140356B2Engine throttle opening degree area estimation method, as well as engine acceleration detection method and device and engine fuel injection control method and device using the estimation methodKOKUSAN DENKI CO·Filed 2005·Granted Nov 28, 2006·7 cites·13 claims
- 2571US5096970APrepolymerization process for producing a conjugated diene compound prepolymer solutionASAHI CHEMICAL IND·Filed 1990·Granted Mar 17, 1992·21 cites·22 claims
- 2668US10399999B2Polymer complex and production process thereforUNIV HOKKAIDO NAT UNIV CORP·Filed 2016·Granted Sep 3, 2019·1 cites·13 claims
- 2768US6807949B2Fuel injection and ignition system for internal combustion engineKOKUSAN DENKI CO·Filed 2003·Granted Oct 26, 2004·10 cites·24 claims
- 2867US7149621B2Control device for engine driven vehicle incorporating generatorKOKUSAN DENKI CO·Filed 2006·Granted Dec 12, 2006·5 cites·4 claims
- 2967US7133762B2Control device for engine driven vehicle incorporating generatorKOKUSAN DENKI CO·Filed 2005·Granted Nov 7, 2006·6 cites·18 claims
- 3067US6550457B1Electronic fuel injection control apparatus for internal combustion engineKOKUSAN DENKI CO·Filed 2002·Granted Apr 22, 2003·15 cites·33 claims
- 3165US6814050B2Fuel cut control device for internal combustion engineKOKUSAN DENKI CO·Filed 2003·Granted Nov 9, 2004·13 cites·9 claims
- 3263US10532669B2Vehicle seatTOYOTA MOTOR CO LTD·Filed 2018·Granted Jan 14, 2020·1 cites·10 claims
- 3363US2024193434A1Federated Learning System and Federated Learning MethodHITACHI LTD·Filed 2023·Application pending·0 cites
- 3460US12291545B2Rare earth complex, rare earth complex solution, luminescent molded article, method for producing luminescent product, luminescent sheet, and vinyl greenhouse for agricultureUNIV HOKKAIDO NAT UNIV CORP·Filed 2020·Granted May 6, 2025·0 cites·12 claims
- 3560US8278395B2Process for manufacturing modified conjugated diene polymer, composition comprising the polymer, and tire comprising the compositionKITAGAWA YUICHI·Filed 2008·Granted Oct 2, 2012·3 cites·11 claims
- 3660US7032440B2Engine rotation information detection deviceKOKUSAN DENKI CO·Filed 2004·Granted Apr 25, 2006·8 cites·5 claims
- 3760US5433139ABread making machineFUNAI ELECTRIC CO·Filed 1994·Granted Jul 18, 1995·28 cites·9 claims
- 3860US5048345AMethod of determining positions of beadsNISSAN MOTOR·Filed 1990·Granted Sep 17, 1991·23 cites·8 claims
- 3959US6854450B2Electronic control system for engineKOKUSAN DENKI CO·Filed 2003·Granted Feb 15, 2005·10 cites·13 claims
- 4058US6971969B2Method and device for determining transmission state of power transmission device for internal combustion engine driven vehicleKOKUSAN DENKI CO·Filed 2004·Granted Dec 6, 2005·13 cites·18 claims
- 4158US2024011907A1Microplastic analysis method, analysis device for same, microplastic detection device, and microplastic detection methodHORIBA TECHNO SERVICE CO LTD·Filed 2021·Application pending·0 cites
- 4256US6371511B1Shock absorbing structure for vehicleNISSAN MOTOR·Filed 1999·Granted Apr 16, 2002·21 cites·17 claims
- 4355US6997167B2Fuel injection control system for engineKOKUSAN DENKI CO·Filed 2004·Granted Feb 14, 2006·8 cites·28 claims
- 4449US10005196B2Cutting apparatusROLAND DG CORP·Filed 2016·Granted Jun 26, 2018·0 cites·16 claims
- 4549US6584960B2Atmospheric pressure detecting method for controlling internal combustion engine and apparatus thereforKOKUSAN DENKI CO·Filed 2002·Granted Jul 1, 2003·6 cites·12 claims
- 4647US2023418674A1Information processing apparatus, information processing system, and information processing methodHITACHI LTD·Filed 2023·Application pending·0 cites
- 4745US12312369B2Rare-earth complex, light-emitting material, light-emitting object, light-emitting device, interlayer for laminated glass, laminated glass, windshield for vehicle, wavelength conversion material, and security materialUNIV HOKKAIDO NAT UNIV CORP·Filed 2019·Granted May 27, 2025·0 cites·14 claims
- 4844US2022089942A1Rare earth compound, phosphine oxide compound, and luminescent bodyUNIV HOKKAIDO NAT UNIV CORP·Filed 2019·Application pending·0 cites
- 4943US10723247B2Vehicle seatTOYOTA MOTOR CO LTD·Filed 2018·Granted Jul 28, 2020·0 cites·3 claims
- 5043US2021130378A1Phosphine oxide compound, rare earth complex, and light-emitting materialUNIV HOKKAIDO NAT UNIV CORP·Filed 2018·Application pending·0 cites
Showing the top 50 of 56 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →