Inventor · disambiguated record
Masaharu Sumiyoshi
Also filed as: ANDO TSUNEO · ITO OSAMU · NOGUCHI MASAAKI · SUMIYOSHI MASAHARU
53 granted patents·1,113 citations·filing 1974–1990
99Inventor score
Top patents by PatentIndex Score
53 records- 0195US4047507AFuel economizing systemNIPPON DENSO CO·Filed 1976·Granted Sep 13, 1977·49 cites·10 claims
- 0294US4565106AGear transmission mechanism with multiple layshaftsTOYOTA MOTOR CO LTD·Filed 1982·Granted Jan 21, 1986·56 cites·6 claims
- 0394US4230072AInternal combustion engine with a methanol reforming systemNIPPON SOKEN·Filed 1979·Granted Oct 28, 1980·92 cites·7 claims
- 0491US4002151ADiesel engine and method for improving the performance thereofTOYOTA MOTOR CO LTD·Filed 1975·Granted Jan 11, 1977·43 cites·17 claims
- 0590US4644821AContinuously variable vehicular transmission for reducing transmission torque applied to belt-type continuously variable transmission mechanismTOYODA CHUO KENKYUSHO KK·Filed 1984·Granted Feb 24, 1987·49 cites·13 claims
- 0687US4256063AIntake system of a multi-cylinder internal combustion engineTOYOTA MOTOR CO LTD·Filed 1979·Granted Mar 17, 1981·27 cites·20 claims
- 0786US4938306AFour-wheel-drive vehicle having a torque transmission coupling for always transmitting the torqueTOYODA CHUO KENKYUSHO KK·Filed 1987·Granted Jul 3, 1990·47 cites·16 claims
- 0886US4175523AInternal combustion engine and a method for operation thereofNIPPON SOKEN·Filed 1978·Granted Nov 27, 1979·24 cites·18 claims
- 0986US4106448AInternal combustion engine and method of operationNIPPON SOKEN·Filed 1976·Granted Aug 15, 1978·50 cites·254 claims
- 1085US4909371AFour wheel driving powerDAIHATSU MOTOR CO LTD·Filed 1987·Granted Mar 20, 1990·37 cites·16 claims
- 1184US3982504AInternal combustion engineNIPPON SOKEN·Filed 1974·Granted Sep 28, 1976·36 cites·20 claims
- 1283US4721253AIntermittent type swirl injection nozzleTOYODA CHUO KENKYUSHO KK·Filed 1985·Granted Jan 26, 1988·58 cites·1 claims
- 1381US3955538AFuel reforming system for an internal combustion engineNIPPON SOKEN·Filed 1974·Granted May 11, 1976·24 cites·9 claims
- 1480US4174690AAir-fuel ratio control deviceTOYOTA MOTOR CO LTD·Filed 1977·Granted Nov 20, 1979·18 cites·23 claims
- 1577US4322800AMethod of reducing fuel consumption rate in internal combustion enginesNIPPON DENSO CO·Filed 1980·Granted Mar 30, 1982·34 cites·7 claims
- 1677US4177778ACarburetors with heating deviceNIPPON DENSO CO·Filed 1977·Granted Dec 11, 1979·31 cites·9 claims
- 1777US4034733AInternal combustion engineNIPPON SOKEN·Filed 1975·Granted Jul 12, 1977·23 cites·15 claims
- 1875US4089310AInternal combustion engine providing improved exhaust-gas purificationNIPPON SOKEN·Filed 1976·Granted May 16, 1978·19 cites·14 claims
- 1974US4086885ACarburetor for stratified internal combustion engineNIPPON SOKEN·Filed 1976·Granted May 2, 1978·29 cites·53 claims
- 2074US4066043AFuel reforming system for an internal combustion engineNIPPON SOKEN·Filed 1976·Granted Jan 3, 1978·14 cites·9 claims
- 2174US4023539AFuel-reforming device for internal combustion enginesTOYOTA MOTOR CO LTD·Filed 1975·Granted May 17, 1977·15 cites·18 claims
- 2272US4254747AIntake system of a multi-cylinder internal combustion engineTOYOTA MOTOR CO LTD·Filed 1979·Granted Mar 10, 1981·14 cites·17 claims
- 2371US4653694AIntermittent type swirl injection nozzleTOYODA CHUO KENKYUSHO KK·Filed 1985·Granted Mar 31, 1987·21 cites·4 claims
- 2467US4235210AFuel supply apparatus for internal combustion enginesAISAN IND·Filed 1978·Granted Nov 25, 1980·12 cites·7 claims
- 2567US3980052AFuel supply installation for internal combustion enginesTOYOTA MOTOR CO LTD·Filed 1974·Granted Sep 14, 1976·18 cites·11 claims
- 2666US4128081ATorch ignition type internal combustion engineNIPPON SOKEN·Filed 1976·Granted Dec 5, 1978·16 cites·47 claims
- 2766US4095565AMethod of operating an internal combustion engineNIPPON SOKEN·Filed 1976·Granted Jun 20, 1978·16 cites·16 claims
- 2866US3974818AInternal combustion engineNIPPON SOKEN·Filed 1974·Granted Aug 17, 1976·18 cites·18 claims
- 2965US4232517AExhaust gas control actuatorTOYOTA MOTOR CO LTD·Filed 1978·Granted Nov 11, 1980·17 cites·8 claims
- 3065US4206599AInternal combustion engineAISAN IND·Filed 1978·Granted Jun 10, 1980·11 cites·17 claims
- 3165US4127095ATorch-ignition internal combustion engineNIPPON SOKEN·Filed 1977·Granted Nov 28, 1978·16 cites·10 claims
- 3264US4336776ASwirl-inducing apparatus for internal combustion enginesTOYOTA MOTOR CO LTD·Filed 1979·Granted Jun 29, 1982·15 cites·8 claims
- 3364US3968645AExhaust gas cleaning device for internal combustion engineTOYOTA MOTOR CO LTD·Filed 1974·Granted Jul 13, 1976·17 cites·12 claims
- 3459US3981145ADevice for purifying exhaust gases by catalytic reactionTOYOTA MOTOR CO LTD·Filed 1974·Granted Sep 21, 1976·13 cites·14 claims
- 3558US4211201AFuel supply apparatus for internal combustion enginesAISAN IND·Filed 1978·Granted Jul 8, 1980·9 cites·14 claims
- 3655US4143627AInternal combustion engineNIPPON SOKEN·Filed 1977·Granted Mar 13, 1979·11 cites·18 claims
- 3755US4098244AControl system for an internal combustion engineNIPPON DENSO CO·Filed 1975·Granted Jul 4, 1978·7 cites·7 claims
- 3855US4085713ATorch ignition internal combustion engineNIPPON SOKEN·Filed 1976·Granted Apr 25, 1978·13 cites·6 claims
- 3951US3978836ASuction heat control unit in internal combustion engineTOYOTA MOTOR CO LTD·Filed 1974·Granted Sep 7, 1976·10 cites·12 claims
- 4050US4034720AInternal combustion engineNIPPON SOKEN·Filed 1975·Granted Jul 12, 1977·11 cites·22 claims
- 4149US5046595ATorque transmission couplingTOYODA CHUO KENKYUSHO KK·Filed 1990·Granted Sep 10, 1991·11 cites·1 claims
- 4249US4450793AIntake system of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1980·Granted May 29, 1984·10 cites·6 claims
- 4349US4044735AExhaust gas recirculation valveTOYOTA MOTOR CO LTD·Filed 1976·Granted Aug 30, 1977·9 cites·4 claims
- 4447US4194478AAir-fuel ratio control system for an internal combustion engineAISAN IND·Filed 1978·Granted Mar 25, 1980·8 cites·14 claims
- 4546US4077363AInternal combustion engineNIPPON SOKEN·Filed 1975·Granted Mar 7, 1978·9 cites·9 claims
- 4644US4294213AFuel supplying device for use in fuel injection type internal combustion engineAISAN IND·Filed 1979·Granted Oct 13, 1981·5 cites·8 claims
- 4740US4253440AFuel supply apparatus for internal combustion enginesTOYOTA MOTOR CO LTD·Filed 1978·Granted Mar 3, 1981·4 cites·5 claims
- 4839US4020817AInternal combustion engineNIPPON SOKEN·Filed 1976·Granted May 3, 1977·5 cites·7 claims
- 4937US4084551AInternal combustion engineNIPPON SOKEN·Filed 1975·Granted Apr 18, 1978·4 cites·20 claims
- 5037US4043307AFuel injection system for an internal combustion engineNIPPON DENSO CO·Filed 1975·Granted Aug 23, 1977·3 cites·7 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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