Inventor · disambiguated record
Daisaku Sawada
Also filed as: HATTORI TADASHI · SAWADA DAISAKU
89 granted patents·12 pending applications·1,289 citations·filing 1973–2011
99Inventor score
Top patents by PatentIndex Score
101 records- 0196US4858439ADevice for varying a strokeTOYOTA MOTOR CO LTD·Filed 1988·Granted Aug 22, 1989·65 cites·20 claims
- 0295US4814659AVariable cross-section piezoelectric actuatorTOYOTA MOTOR CO LTD·Filed 1988·Granted Mar 21, 1989·60 cites·4 claims
- 0394US5058549AFuel swirl generation type fuel injection valve and direct fuel injection type spark ignition internal combustion engineTOYOTA MOTOR CO LTD·Filed 1990·Granted Oct 22, 1991·79 cites·10 claims
- 0493US4466405AFeedback type ignition timing control system for internal combustion enginesNIPPON SOKEN·Filed 1982·Granted Aug 21, 1984·30 cites·8 claims
- 0590US4232642AIgnition timing control system for internal combustion enginesTOYOTA MOTOR CO LTD·Filed 1978·Granted Nov 11, 1980·24 cites·5 claims
- 0689US7624574B2Piston apparatus, stirling engine, external combustion engine, and fluid deviceTOYOTA MOTOR CO LTD·Filed 2005·Granted Dec 1, 2009·19 cites·15 claims
- 0786US7621260B2Internal combustion engine and control method thereofTOYOTA MOTOR CO LTD·Filed 2006·Granted Nov 24, 2009·19 cites·15 claims
- 0885US7581393B2Stirling engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Sep 1, 2009·15 cites·13 claims
- 0985US4702725AHydraulic control system for continuously variable transmissionTOYOTA MOTOR CO LTD·Filed 1986·Granted Oct 27, 1987·36 cites·6 claims
- 1085US4225802APiezoelectric knocking detector for internal combustion engineNIPPON DENSO CO·Filed 1979·Granted Sep 30, 1980·32 cites·4 claims
- 1185US4131097AIgnition system for internal combustion enginesNIPPON SOKEN·Filed 1977·Granted Dec 26, 1978·50 cites·6 claims
- 1284US7661416B2Working-gas-circulation-type engineTOYOTA MOTOR CO LTD·Filed 2007·Granted Feb 16, 2010·17 cites·12 claims
- 1383US8065991B2Working gas circulation engineKUROKI RENTARO·Filed 2009·Granted Nov 29, 2011·12 cites·16 claims
- 1483US4478185AAir-fuel ratio and ignition timing regulation by detecting engine running conditionNIPPON SOKEN·Filed 1983·Granted Oct 23, 1984·25 cites·11 claims
- 1582US4974565AFuel swirl generation type fuel injection valve and direct fuel injection type spark ignition internal combustion engine mounted with the fuel injection valveTOYOTA MOTOR CO LTD·Filed 1989·Granted Dec 4, 1990·43 cites·6 claims
- 1682US4328779AFeedback type ignition timing control system for internal combustion enginesNIPPON SOKEN·Filed 1979·Granted May 11, 1982·34 cites·4 claims
- 1781US4715258APower transmission for use in automobiles having continuously variable transmissionTOYOTA MOTOR CO LTD·Filed 1984·Granted Dec 29, 1987·27 cites·12 claims
- 1879US7802543B2Spark ignition type internal combustion engineTOYOTA MOTOR CO LTD·Filed 2007·Granted Sep 28, 2010·13 cites·30 claims
- 1979US4513721AAir-fuel ratio control device for internal combustion enginesNIPPON SOKEN·Filed 1982·Granted Apr 30, 1985·26 cites·7 claims
- 2079US4245591AIgnition timing control system for internal combustion enginesNIPPON SOKEN·Filed 1979·Granted Jan 20, 1981·14 cites·2 claims
- 2178US7882821B2Spark ignition type internal combustion engineTOYOTA MOTOR CO LTD·Filed 2007·Granted Feb 8, 2011·9 cites·19 claims
- 2278US7213563B2Piston engine having approximate straight-line mechanismTOYOTA MOTOR CO LTD·Filed 2005·Granted May 8, 2007·9 cites·7 claims
- 2378US4385606AIgnition timing regulating device for internal combustion engineNIPPON SOKEN·Filed 1981·Granted May 31, 1983·19 cites·8 claims
- 2477US8989990B2Working gas circulation type engineKUROKI RENTARO·Filed 2010·Granted Mar 24, 2015·3 cites·11 claims
- 2577US5477831AFuel injection control device for internal combustion engineAISIN SEIKI·Filed 1994·Granted Dec 26, 1995·32 cites·3 claims
- 2677US4211194AIgnition system for internal combustion enginesNIPPON SOKEN·Filed 1977·Granted Jul 8, 1980·32 cites·2 claims
- 2776US8250869B2Exhaust heat recovery apparatusSAWADA DAISAKU·Filed 2007·Granted Aug 28, 2012·4 cites·9 claims
- 2876US4413599AIgnition timing control system in a spark ignition type internal combustion engineTOYOTA MOTOR CO LTD·Filed 1981·Granted Nov 8, 1983·18 cites·6 claims
- 2976US4236491AIgnition timing control apparatus for internal combustion enginesNIPPON DENSO CO·Filed 1979·Granted Dec 2, 1980·30 cites·4 claims
- 3075US4320729ASystem for controlling ignition timing in engineTOYOTA MOTOR CO LTD·Filed 1979·Granted Mar 23, 1982·23 cites·3 claims
- 3174US4269155AIgnition timing control system for internal combustion enginesNIPPON SOKEN·Filed 1979·Granted May 26, 1981·13 cites·3 claims
- 3274US4029072AIgniting apparatus for internal combustion enginesTOYOTA MOTOR CO LTD·Filed 1974·Granted Jun 14, 1977·23 cites·6 claims
- 3373US9447752B2Detection method of airtight failure in working-gas circulating type gas engine, and working-gas circulating type gas engine using the methodKUROKI RENTARO·Filed 2011·Granted Sep 20, 2016·3 cites·10 claims
- 3473US4274379AMethod and system for controlling ignition timing of internal combustion enginesNIPPON SOKEN·Filed 1979·Granted Jun 23, 1981·26 cites·4 claims
- 3573US4094277AIntake valve mechanism for preventing back flow of exhaust gasTOKYO JIDOSHA KOGYO KK·Filed 1976·Granted Jun 13, 1978·25 cites·6 claims
- 3672US7730723B2Exhaust heat recovery apparatusTOYOTA MOTOR CO LTD·Filed 2007·Granted Jun 8, 2010·9 cites·9 claims
- 3772US7191596B2Stirling engine and hybrid system that uses the Stirling engineTOYOTA MOTOR CO LTD·Filed 2004·Granted Mar 20, 2007·16 cites·16 claims
- 3872US5425343AFuel injection control device for internal combustion engineAISIN SEIKI·Filed 1994·Granted Jun 20, 1995·24 cites·4 claims
- 3972US4718306APower transmission for use in automobiles continuously variable transmissionTOYOTA MOTOR CO LTD·Filed 1987·Granted Jan 12, 1988·21 cites·3 claims
- 4072US4685357AContinuously variable transmission hydraulic control system having two pressure regulating valvesTOYOTA MOTOR CO LTD·Filed 1985·Granted Aug 11, 1987·23 cites·4 claims
- 4171US4261313AMethod of and apparatus for controlling ignition timing of an internal-combustion engineNIPPON SOKEN·Filed 1979·Granted Apr 14, 1981·25 cites·6 claims
- 4270US8166759B2Exhaust heat recovery apparatusYAGUCHI HIROSHI·Filed 2007·Granted May 1, 2012·6 cites·33 claims
- 4370US4290398AIgnition timing control system for internal combustion engineNIPPON DENSO CO·Filed 1979·Granted Sep 22, 1981·18 cites·11 claims
- 4469US7644581B2Stirling engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Jan 12, 2010·5 cites·9 claims
- 4569US4817469AAutomatic transmission for automobile and method of controlling sameTOYOTA MOTOR CO LTD·Filed 1987·Granted Apr 4, 1989·19 cites·17 claims
- 4668US7624672B2Piston apparatusTOYOTA MOTOR CO LTD·Filed 2005·Granted Dec 1, 2009·3 cites·7 claims
- 4768US4257364AMethod and system for controlling ignition timingTOYOTA MOTOR CO LTD·Filed 1979·Granted Mar 24, 1981·10 cites·14 claims
- 4867US4593582AContinuously variable transmission means for use in vehiclesTOYOTA MOTOR CO LTD·Filed 1983·Granted Jun 10, 1986·17 cites·4 claims
- 4966US8662057B2Working gas circulation engineKUROKI RENTARO·Filed 2009·Granted Mar 4, 2014·5 cites·7 claims
- 5066US8234054B2Method of operating a spark ignition type internal combustion engineNAKASAKA YUKIHIRO·Filed 2007·Granted Jul 31, 2012·5 cites·7 claims
Showing the top 50 of 101 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →