Inventor · disambiguated record
Yoshiyuki Okamoto
Also filed as: MERKEL TIMOTHY C · OKAMOTO YOSHIYUKI
92 granted patents·12 pending applications·2,122 citations·filing 1976–2022
99Inventor score
Files withDENSO CORP24MITSUBISHI HEAVY IND COMPRESSOR CORP22GRACE W R & CO5SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP5KOPPERS CO INC4
Top patents by PatentIndex Score
104 records- 0198US10177692B2Variable electric motor system and electrically powered deviceMITSUBISHI HEAVY IND COMPRESSOR CORP·Filed 2015·Granted Jan 8, 2019·16 cites·30 claims
- 0297US5089112AElectrochemical biosensor based on immobilized enzymes and redox polymersASS UNIVERSITIES INC·Filed 1990·Granted Feb 18, 1992·1k cites·10 claims
- 0396US11613165B2Air conditioner for vehicleSANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP·Filed 2022·Granted Mar 28, 2023·4 cites·9 claims
- 0496US8828121B1Gas separation membranes based on perfluorinated polymersHE ZHENJIE·Filed 2014·Granted Sep 9, 2014·58 cites·16 claims
- 0594US10465774B2Starting method for variable speed accelerator and starting control device for variable speed acceleratorMITSUBISHI HEAVY IND COMPRESSOR CORP·Filed 2015·Granted Nov 5, 2019·8 cites·5 claims
- 0693US11060587B1Variable-speed speed-up mechanismMITSUBISHI HEAVY IND COMPRESSOR CORP·Filed 2016·Granted Jul 13, 2021·7 cites·6 claims
- 0793US10454394B2Rotational driving force imparting device and electric motor device for the sameMITSUBISHI HEAVY IND COMPRESSOR CORP·Filed 2014·Granted Oct 22, 2019·10 cites·13 claims
- 0893US10022677B2Gas separation membranes based on perfluorinated polymersMEMBRANE TECH AND RESEARCH INC·Filed 2016·Granted Jul 17, 2018·5 cites·21 claims
- 0993US9636632B2Gas separation membranes based on fluorinated and perfluorinated polymersMEMBRANE TECH AND RES INC·Filed 2016·Granted May 2, 2017·6 cites·15 claims
- 1093US5128587AElectroluminescent device based on organometallic membraneMOLTECH CORP·Filed 1990·Granted Jul 7, 1992·128 cites·11 claims
- 1192US9975084B2Fluid separation processes using membranes based on fluorinated and perfluorinated polymersMEMBRANE TECH AND RESEARCH INC·Filed 2017·Granted May 22, 2018·6 cites·10 claims
- 1292US9403120B2Gas separation membranes based on perfluorinated polymersMEMBRANE TECH AND RES INC·Filed 2014·Granted Aug 2, 2016·10 cites·12 claims
- 1392US7754901B2Method for producing fluorinated compounds and polymersJAPAN SCIENCE & TECH AGENCY·Filed 2009·Granted Jul 13, 2010·9 cites·3 claims
- 1491US11077736B2Vehicular air conditionerSANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP·Filed 2018·Granted Aug 3, 2021·5 cites·7 claims
- 1590US11254188B2Air conditioner for vehicleSANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP·Filed 2018·Granted Feb 22, 2022·5 cites·9 claims
- 1690US7654108B2Unit for refrigerant cycle deviceDENSO CORP·Filed 2007·Granted Feb 2, 2010·16 cites·28 claims
- 1789US9643124B2Gas separation membranes based on fluorinated and perfluorinated polymersZHANG HAO·Filed 2015·Granted May 9, 2017·4 cites·16 claims
- 1889US6789612B1Cooling device with waterproof structureDENSO CORP·Filed 2000·Granted Sep 14, 2004·45 cites·5 claims
- 1987US8168808B2Fluorinated 1,3-dioxolane compounds, fluorinated polymers of the compounds, and optical or electrical materials comprising the polymersOKAMOTO YOSHIYUKI·Filed 2009·Granted May 1, 2012·6 cites·5 claims
- 2086US5264092ARedox polymer modified electrode for the electrochemical regeneration of coenzymeMOLTECH CORP·Filed 1991·Granted Nov 23, 1993·174 cites·9 claims
- 2185US10656110B2Temperature control system, temperature control device and refrigeration deviceSHINWA CONTROLS CO LTD·Filed 2017·Granted May 19, 2020·4 cites·12 claims
- 2285US10539344B2AdsorberDENSO CORP·Filed 2015·Granted Jan 21, 2020·3 cites·10 claims
- 2384US10601347B2Variable electric motor system and electrically powered device thereofMITSUBISHI HEAVY IND COMPRESSOR CORP·Filed 2015·Granted Mar 24, 2020·2 cites·7 claims
- 2483US10473193B2Control method for variable speed electric motor system and control device for variable speed electric motor systemMITSUBISHI HEAVY IND COMPRESSOR CORP·Filed 2015·Granted Nov 12, 2019·3 cites·3 claims
- 2582US7100682B2Cooling device with water proof structureDENSO CORP·Filed 2003·Granted Sep 5, 2006·25 cites·9 claims
- 2682US4619080ARoll grinding apparatus for rolling millsNIPPON STEEL CORP·Filed 1985·Granted Oct 28, 1986·22 cites·10 claims
- 2780US10067345B2Head-up display deviceNIPPON SEIKI CO LTD·Filed 2015·Granted Sep 4, 2018·4 cites·4 claims
- 2880US7635780B2Method for producing fluorinated 1,3-dioxolane compounds, fluorinated 1, 3-dioxolane compounds, fluorinated polymers of the fluorinated 1,3-dioxolane compounds and optical or electrical materials using the polymersJAPAN SCIENCE & TECH AGENCY·Filed 2004·Granted Dec 22, 2009·9 cites·3 claims
- 2980US5362493APreparation of redox polymer cathodes for thin film rechargeable batteriesASS UNIVERSITIES INC·Filed 1992·Granted Nov 8, 1994·59 cites·7 claims
- 3079US10544862B2Starting method for variable speed accelerator and starting control device for variable speed acceleratorMITSUBISHI HEAVY IND COMPRESSOR CORP·Filed 2016·Granted Jan 28, 2020·2 cites·4 claims
- 3178US10626953B2Variable speed increaser and control method thereofMITSUBISHI HEAVY IND COMPRESSOR CORP·Filed 2018·Granted Apr 21, 2020·2 cites·6 claims
- 3278US6136169AAbnormality diagnosis for air-fuel ratio sensor systemDENSO CORP·Filed 1998·Granted Oct 24, 2000·48 cites·16 claims
- 3377US5197449AIgnition system for an engineAISIN SEIKI·Filed 1992·Granted Mar 30, 1993·20 cites·2 claims
- 3475US7770412B2Integrated unit for refrigerant cycle device and manufacturing method of the sameDENSO CORP·Filed 2007·Granted Aug 10, 2010·5 cites·24 claims
- 3575US6615603B2Cooling system of heat emittersDENSO CORP·Filed 2002·Granted Sep 9, 2003·21 cites·31 claims
- 3674US7647789B2Evaporator unit and ejector type refrigeration cycleDENSO CORP·Filed 2007·Granted Jan 19, 2010·5 cites·20 claims
- 3774US7582714B2Fluorinated polymers, method for producing the fluorinated compounds and polymersJAPAN SCIENCE & TECH AGENCY·Filed 2004·Granted Sep 1, 2009·9 cites·7 claims
- 3874US6696673B2Gas concentration detector having heater for use in internal combustion engineDENSO CORP·Filed 2001·Granted Feb 24, 2004·18 cites·14 claims
- 3974US5724941AMalfunction diagnosis device of an internal combustion engine controllerNIPPON DENSO CO·Filed 1996·Granted Mar 10, 1998·30 cites·21 claims
- 4073US10738858B2Variable-speed speed increaser, variable-speed speed increaser control device, and variable-speed speed increaser control methodMITSUBISHI HEAVY IND COMPRESSOR CORP·Filed 2016·Granted Aug 11, 2020·1 cites·21 claims
- 4172US6382308B2Boiling cooling system that exchanges heat between higher-temperature fluid and lower-temperature fluidDENSO CORP·Filed 2001·Granted May 7, 2002·17 cites·5 claims
- 4272US5806306ADeterioration monitoring apparatus for an exhaust system of an internal combustion engineNIPPON DENSO CO·Filed 1996·Granted Sep 15, 1998·38 cites·5 claims
- 4371US8099978B2Evaporator unitAUNG THUYA·Filed 2008·Granted Jan 24, 2012·4 cites·12 claims
- 4469US11577579B2Vehicle air-conditioning deviceSANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP·Filed 2018·Granted Feb 14, 2023·1 cites·20 claims
- 4569US6125926AHeat exchanger having plural fluid passagesDENSO CORP·Filed 1998·Granted Oct 3, 2000·29 cites·19 claims
- 4669US4465845AHigh pressure synthesis of sulfur-selenium fulvalenesKOPPERS CO INC·Filed 1982·Granted Aug 14, 1984·8 cites·12 claims
- 4768US5730111AAir-fuel ratio control system for internal combustion engineNIPPON DENSO CO·Filed 1996·Granted Mar 24, 1998·25 cites·20 claims
- 4866US10663039B2Variable speed accelerator and method for controlling variable speed acceleratorMITSUBISHI HEAVY IND COMPRESSOR CORP·Filed 2016·Granted May 26, 2020·1 cites·5 claims
- 4966US8741445B2Aluminum or aluminum alloy material having surface treatment coating film, and method for treating a surface thereofBANNAI HIROKATSU·Filed 2011·Granted Jun 3, 2014·4 cites·9 claims
- 5064US4882243APreparation of metallic cation conducting polymers based on sterically hindered phenols containing polymeric systemsUNIV POLYTECHNIC·Filed 1988·Granted Nov 21, 1989·22 cites·22 claims
Showing the top 50 of 104 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →