Inventor · disambiguated record
Hidemi Ohnaka
Also filed as: OHNAKA HIDEMI
15 granted patents·486 citations·filing 1980–2000
94Inventor score
Top patents by PatentIndex Score
15 records- 0198US5551231AEngine exhaust gas purification deviceTOYOTA MOTOR CO LTD·Filed 1994·Granted Sep 3, 1996·143 cites·25 claims
- 0296US6505594B1Control apparatus for internal combustion engine and method of controlling internal combustion engineTOYOTA MOTOR CO LTD·Filed 2000·Granted Jan 14, 2003·47 cites·26 claims
- 0389US4825841ADiagnosis device for an internal combustion engine exhaust gas recycling deviceTOYOTA MOTOR CO LTD·Filed 1988·Granted May 2, 1989·35 cites·9 claims
- 0482US4938196AControl device for heater for oxygen sensor operative to correct target resistance with reference to standard power supply theretoTOYOTA MOTOR CO LTD·Filed 1989·Granted Jul 3, 1990·53 cites·10 claims
- 0581US5461857AEngine exhaust gas purification deviceTOYOTA MOTOR CO LTD·Filed 1994·Granted Oct 31, 1995·51 cites·21 claims
- 0681US4870942ADiagnosis device for exhaust gas recycling device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 1988·Granted Oct 3, 1989·26 cites·6 claims
- 0780US5307783ABoost pressure control system for an engineTOYOTA MOTOR CO LTD·Filed 1993·Granted May 3, 1994·36 cites·4 claims
- 0876US4799466ADeceleration control device of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1987·Granted Jan 24, 1989·21 cites·12 claims
- 0960US4594992ASupercharger of an internal combustion engine having Roots pumpTOYOTA MOTOR CO LTD·Filed 1985·Granted Jun 17, 1986·16 cites·5 claims
- 1058US5150693ABoost pressure control system for a supercharged engineTOYOTA MOTOR CO LTD·Filed 1991·Granted Sep 29, 1992·18 cites·8 claims
- 1153US5154155ABoost pressure control system for a supercharged engineTOYOTA MOTOR CO LTD·Filed 1991·Granted Oct 13, 1992·15 cites·6 claims
- 1251US4343277AThrottle valve opening controllerTOYOTA MOTOR CO LTD·Filed 1980·Granted Aug 10, 1982·8 cites·4 claims
- 1342US4478192AAir-fuel ratio control system for internal combustion enginesNIPPON DENSO CO·Filed 1983·Granted Oct 23, 1984·7 cites·4 claims
- 1441US4501242AAir-fuel ratio control apparatusNIPPON DENSO CO·Filed 1983·Granted Feb 26, 1985·6 cites·1 claims
- 1538US4426976AEngine air/fuel ratio control system injecting bleed air into both fuel systems of double barreled carburetorTOYOTA MOTOR CO LTD·Filed 1981·Granted Jan 24, 1984·4 cites·4 claims
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