Inventor · disambiguated record
Hiroyuki Oyanagi
Also filed as: OYANAGI HIROYUKI
37 granted patents·6 pending applications·564 citations·filing 1999–2021
97Inventor score
Files withHONDA MOTOR CO LTD13NIPPON TELEGRAPH & TELEPHONE7SYMYX TECHNOLOGIES INC6TOYOTA MOTOR CO LTD6SYMYX SOLUTIONS INC3
Top patents by PatentIndex Score
43 records- 0197US6523699B1Sulfonic acid group-containing polyvinyl alcohol, solid polymer electrolyte, composite polymer membrane, method for producing the same and electrodeHONDA MOTOR CO LTD·Filed 2000·Granted Feb 25, 2003·102 cites·7 claims
- 0294US6124060ASolid polymer electrolytesHONDA MOTOR CO LTD·Filed 1999·Granted Sep 26, 2000·128 cites·12 claims
- 0393US6986962B2Basic polymer electrolyte fuel cellHONDA MOTOR CO LTD·Filed 2002·Granted Jan 17, 2006·75 cites·12 claims
- 0489US7422994B2Platinum-copper-tungsten fuel cell catalystSYMYX TECHNOLOGIES INC·Filed 2005·Granted Sep 9, 2008·9 cites·31 claims
- 0588US7811965B2Platinum-copper-nickel fuel cell catalystSYMYX SOLUTIONS INC·Filed 2005·Granted Oct 12, 2010·11 cites·20 claims
- 0687US11152884B2Driving systemTOYOTA MOTOR CO LTD·Filed 2020·Granted Oct 19, 2021·2 cites·6 claims
- 0785US6767664B2Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrodeHONDA MOTOR CO LTD·Filed 2002·Granted Jul 27, 2004·21 cites·9 claims
- 0885US6478987B1Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrodeHONDA MOTOR CO LTD·Filed 2000·Granted Nov 12, 2002·22 cites·5 claims
- 0985US6465120B1Composite polymer membrane, method for producing the same and solid polymer electrolyte membraneHONDA MOTOR CO LTD·Filed 2000·Granted Oct 15, 2002·35 cites·25 claims
- 1082US6770393B2Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrodeHONDA MOTOR CO LTD·Filed 2002·Granted Aug 3, 2004·17 cites·9 claims
- 1180US7662740B2Platinum-chromium-copper/nickel fuel cell catalystSYMYX TECHNOLOGIES INC·Filed 2004·Granted Feb 16, 2010·19 cites·26 claims
- 1279US7898208B2Control device and corresponding control method for a boost converter in a motor drive systemTOYOTA MOTOR CO LTD·Filed 2006·Granted Mar 1, 2011·14 cites·10 claims
- 1375US7608560B2Platinum-titanium-tungsten fuel cell catalystSYMYX TECHNOLOGIES INC·Filed 2004·Granted Oct 27, 2009·12 cites·32 claims
- 1475US7101639B2Fuel cell electrocatalyst of Pt-Rh-Mo-Ni/FeHONDA MOTOR CO LTD·Filed 2003·Granted Sep 5, 2006·12 cites·23 claims
- 1573US7700521B2Platinum-copper fuel cell catalystSYMYX SOLUTIONS INC·Filed 2004·Granted Apr 20, 2010·12 cites·16 claims
- 1669US9077275B2Rotor position estimating device, electric motor control system and rotor position estimating methodOYOBE HICHIROSAI·Filed 2013·Granted Jul 7, 2015·2 cites·9 claims
- 1769US6833204B2Method of operating phosphoric acid fuel cellHONDA MOTOR CO LTD·Filed 2001·Granted Dec 21, 2004·8 cites·11 claims
- 1869US6281036B1Method of fabricating film for solar cellsAGENCY IND SCIENCE TECHN·Filed 1999·Granted Aug 28, 2001·34 cites·14 claims
- 1966US11757395B2Electric motor control deviceDENSO CORP·Filed 2021·Granted Sep 12, 2023·0 cites·14 claims
- 2066US11108351B2Electric motor control deviceTOYOTA MOTOR CO LTD·Filed 2020·Granted Aug 31, 2021·0 cites·14 claims
- 2166US7635533B2Fuel cell electrocatalyst of Pt-Mn-CoSYMYX SOLUTIONS INC·Filed 2003·Granted Dec 22, 2009·7 cites·10 claims
- 2264US10723233B2Controller of electrically powered vehicleDENSO CORP·Filed 2019·Granted Jul 28, 2020·1 cites·4 claims
- 2364US6303053B1Method for producing meta type polyanilineHONDA MOTOR CO LTD·Filed 2000·Granted Oct 16, 2001·5 cites·3 claims
- 2462US11183962B2Driving systemTOYOTA MOTOR CO LTD·Filed 2020·Granted Nov 23, 2021·0 cites·14 claims
- 2562US7479343B2Platinum-indium-iron/tungsten/manganese fuel cell electrocatalystSYMYX TECHNOLOGIES INC·Filed 2004·Granted Jan 20, 2009·4 cites·16 claims
- 2660US8021798B2Fuel cell electrocatalyst of Pt-Zn-Ni/FeFREESLATE INC·Filed 2003·Granted Sep 20, 2011·4 cites·19 claims
- 2757US10259342B2VehicleTOYOTA MOTOR CO LTD·Filed 2017·Granted Apr 16, 2019·1 cites·3 claims
- 2856US7525278B2Voltage conversion apparatus, power output apparatus, and control method of voltage converterTOYOTA MOTOR CO LTD·Filed 2006·Granted Apr 28, 2009·3 cites·14 claims
- 2955US11720092B2Maintenance management system and data processing methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 8, 2023·0 cites·11 claims
- 3054US9184681B2Vehicle including motor control device, and control method for vehicleOYOBE HICHIROSAI·Filed 2013·Granted Nov 10, 2015·1 cites·16 claims
- 3154US8115423B2Motor driving system and controlling method of the sameHANADA HIDETO·Filed 2006·Granted Feb 14, 2012·3 cites·15 claims
- 3249US11114066B2Path display device and path display methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Sep 7, 2021·0 cites·5 claims
- 3346US2008044719A1Platinum-copper-titanium fuel cell catalystSYMYX TECHNOLOGIES INC·Filed 2006·Application pending·0 cites
- 3446US2007054802A1Platinum-vanadium-iron fuel cell electrocatalystHONDA MOTOR CO LTD·Filed 2004·Application pending·0 cites
- 3545US11853744B2Analysis device, analysis method, and analysis programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Dec 26, 2023·0 cites·5 claims
- 3644US2008166623A1Platinum-Nickel-Iron Fuel Cell CatalystSYMYX TECHNOLOGIES INC·Filed 2004·Application pending·0 cites
- 3744US2007037696A1Platinum-palladium-titanium fuel cell catalystHONDA MOTOR CO LTD·Filed 2006·Application pending·0 cites
- 3843US11201687B2Optical transmission system and wavelength allocation methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Dec 14, 2021·0 cites·4 claims
- 3943US11196482B2Monitoring device and monitoring methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Dec 7, 2021·0 cites·9 claims
- 4043US11057105B2Monitoring device and monitoring methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jul 6, 2021·0 cites·6 claims
- 4142US2005170222A1Full cell electrocatalyst of pt-ni-mn/feSYMYX TECHNOLOGIES INC HONDA G·Filed 2003·Application pending·0 cites
- 4241US11296790B2Transmission system and wavelength resource management methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Apr 5, 2022·0 cites·3 claims
- 4338US2002045090A1Method for producing phosphoric acid fuel cellHONDA MOTOR CO LTD·Filed 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →