Inventor · disambiguated record
Takeshi Okumura
Also filed as: OKUMURA TAKESHI · SATO KATSUJIRO
82 granted patents·12 pending applications·1,270 citations·filing 1977–2025
99Inventor score
Top patents by PatentIndex Score
94 records- 0198US6711893B2Fuel supply apparatus for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2001·Granted Mar 30, 2004·209 cites·24 claims
- 0297US7091816B1Common-mode choke coilTDK CORP·Filed 2006·Granted Aug 15, 2006·44 cites·13 claims
- 0395US6725827B2Spark ingition stratified combustion internal combustion engineTOYOTA MOTOR CO LTD·Filed 2001·Granted Apr 27, 2004·79 cites·17 claims
- 0494US7089907B2Hydrogen-used internal combustion engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Aug 15, 2006·37 cites·10 claims
- 0592US10173145B2Carbon dioxide separation systemKAWASAKI HEAVY IND LTD·Filed 2015·Granted Jan 8, 2019·7 cites·8 claims
- 0692US8451083B2Coil component and method of manufacturing the sameOKUMURA TAKESHI·Filed 2011·Granted May 28, 2013·10 cites·10 claims
- 0792US4162661AInternal combustion engine with combustion chambers which create a squish and swirl of an air-fuel mixtureTOYOTA MOTOR CO LTD·Filed 1977·Granted Jul 31, 1979·46 cites·6 claims
- 0890US7692527B2Common mode choke coilTDK CORP·Filed 2008·Granted Apr 6, 2010·19 cites·16 claims
- 0988US7412947B2Internal combustion engine system with hydrogen generation capabilityTOYOTA MOTOR CO LTD·Filed 2005·Granted Aug 19, 2008·11 cites·3 claims
- 1088US7256673B2Coil assembly including common-mode choke coilTDK CORP·Filed 2006·Granted Aug 14, 2007·22 cites·16 claims
- 1188US4669434AInternal combustion engine cylinder head variable swirl siamese type intake port structure, with auxiliary straight passage, pointing at spark plug, leading from mixture intake to downstream end of straight intake portTOYOTA MOTOR CO LTD·Filed 1986·Granted Jun 2, 1987·43 cites·9 claims
- 1285US7362205B2Common-mode filterTDK CORP·Filed 2006·Granted Apr 22, 2008·13 cites·6 claims
- 1385US4312309AHelically-shaped intake port of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1979·Granted Jan 26, 1982·32 cites·12 claims
- 1483US8723632B2Coil component and method of manufacturing the sameTDK CORP·Filed 2013·Granted May 13, 2014·4 cites·1 claims
- 1582US8951490B2CO2 recovery method and apparatusOKUMURA TAKESHI·Filed 2012·Granted Feb 10, 2015·9 cites·10 claims
- 1682US4212270ACooling system for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1977·Granted Jul 15, 1980·32 cites·2 claims
- 1781US4300499ACombustion chamber of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1979·Granted Nov 17, 1981·27 cites·17 claims
- 1880US7619500B1Common mode filterTDK CORP·Filed 2009·Granted Nov 17, 2009·11 cites·8 claims
- 1980US4411226AIntake system for an internal combustion engineOKUMURA TAKESHI·Filed 1981·Granted Oct 25, 1983·28 cites·4 claims
- 2079US11285438B2Carbon dioxide separation recovery system and methodKAWASAKI HEAVY IND LTD·Filed 2019·Granted Mar 29, 2022·3 cites·13 claims
- 2179US4271803AInternal combustion engineTOYOTA MOTOR CO LTD·Filed 1979·Granted Jun 9, 1981·26 cites·21 claims
- 2278US4699104AInternal combustion engine cylinder head variable swirl siamese type intake port structure with bypass passage from straight intake passage communicated by gap to helical intake passageTOYOTA MOTOR CO LTD·Filed 1986·Granted Oct 13, 1987·29 cites·7 claims
- 2377US6341591B1Direct fuel injection-type spark ignition internal combustion engineTOYOTA MOTOR CO LTD·Filed 1999·Granted Jan 29, 2002·29 cites·20 claims
- 2477US5396821AApparatus and method of machining article of eccentric configurationOKUMA MACHINERY WORKS LTD·Filed 1993·Granted Mar 14, 1995·49 cites·11 claims
- 2576US9073004B2Carbon dioxide separation apparatusKAWASAKI HEAVY IND LTD·Filed 2012·Granted Jul 7, 2015·4 cites·8 claims
- 2676US4550699AIntake device of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1984·Granted Nov 5, 1985·28 cites·16 claims
- 2774US4730579AInternal combustion engine cylinder head with port coolant passage independent of and substantially wider than combustion chamber coolant passageTOYOTA MOTOR CO LTD·Filed 1986·Granted Mar 15, 1988·28 cites·3 claims
- 2874US4182279ACombustion chamber of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1977·Granted Jan 8, 1980·21 cites·15 claims
- 2971US11185842B2Carbon dioxide adsorbent, method for manufacturing the same, and carbon dioxide processing systemKAWASAKI HEAVY IND LTD·Filed 2017·Granted Nov 30, 2021·1 cites·3 claims
- 3071US5819700ACombustion chamber structure for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1997·Granted Oct 13, 1998·21 cites·6 claims
- 3169US11529608B2Carbon dioxide adsorbent and carbon dioxide processing systemKAWASAKI HEAVY IND LTD·Filed 2021·Granted Dec 20, 2022·0 cites·6 claims
- 3268US10252214B2Carbon dioxide separation and recovery system and methodKAWASAKI HEAVY IND LTD·Filed 2014·Granted Apr 9, 2019·1 cites·20 claims
- 3368US10010826B2Carbon dioxide separation and recovery systemKAWASAKI HEAVY IND LTD·Filed 2015·Granted Jul 3, 2018·1 cites·2 claims
- 3468US9314802B2Spraying tube device and heat exchanger using the sameOKUMURA TAKESHI·Filed 2010·Granted Apr 19, 2016·2 cites·17 claims
- 3568US8564393B2Coil component and method of manufacturing the sameNISHIKAWA TOMONAGA·Filed 2011·Granted Oct 22, 2013·2 cites·16 claims
- 3666US8878641B2Electronic componentNISHIKAWA TOMONAGA·Filed 2011·Granted Nov 4, 2014·2 cites·12 claims
- 3766US8786379B2Common mode noise filterNAKAGAWA TAKASHI·Filed 2011·Granted Jul 22, 2014·2 cites·19 claims
- 3866US4438741ADevice for controlling a flow in a helical type intake portTOYOTA MOTOR CO LTD·Filed 1982·Granted Mar 27, 1984·19 cites·13 claims
- 3965US2025357034A1Common mode filterTDK CORP·Filed 2025·Application pending·0 cites
- 4065US2024087787A1Coil componentTDK CORP·Filed 2023·Application pending·0 cites
- 4164US4505123AAbsorption heat pump systemSANYO ELECTRIC CO·Filed 1983·Granted Mar 19, 1985·27 cites·17 claims
- 4263US9086021B2Intake apparatus of engineOKUMURA TAKESHI·Filed 2010·Granted Jul 21, 2015·1 cites·8 claims
- 4363US6655347B2Intake port of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2003·Granted Dec 2, 2003·11 cites·6 claims
- 4463US2023326667A1Coil componentTDK CORP·Filed 2023·Application pending·0 cites
- 4561US2025293654A1Common mode filterTDK CORP·Filed 2025·Application pending·0 cites
- 4660US4308832AHelically shaped intake port of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1979·Granted Jan 5, 1982·13 cites·10 claims
- 4760US2024412917A1Coil componentTDK CORP·Filed 2022·Application pending·0 cites
- 4860US2024395452A1Stacked coupling coil component and circuit board having the sameTDK CORP·Filed 2022·Application pending·0 cites
- 4959US4671233ACylinder head variable swirl siamese type intake port structure including biasing means diverting mixture flow towards diverting means which bypasses straight intake passage control valveTOYOTA MOTOR CO LTD·Filed 1986·Granted Jun 9, 1987·17 cites·11 claims
- 5059US4480625AInternal combustion engine with helical intake port and combustion chamber with two squish areasTOYOTA MOTOR CO LTD·Filed 1982·Granted Nov 6, 1984·16 cites·6 claims
Showing the top 50 of 94 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →