Inventor · disambiguated record
Yoshishige Ohyama
Also filed as: OHYAMA YOSHISHIGE
39 granted patents·1,288 citations·filing 1977–2001
98Inventor score
Files withHITACHI LTD39
Top patents by PatentIndex Score
39 records- 0197US5533329AControl apparatus for and control method of gas turbineHITACHI LTD·Filed 1994·Granted Jul 9, 1996·118 cites·13 claims
- 0297US5369581AVehicle control apparatus and method thereforHITACHI LTD·Filed 1993·Granted Nov 29, 1994·86 cites·16 claims
- 0396US4132199AAir-fuel ratio control apparatusHITACHI LTD·Filed 1977·Granted Jan 2, 1979·53 cites·15 claims
- 0493US4909212AElectronically controlled type throttle valve for internal combustion enginesHITACHI LTD·Filed 1989·Granted Mar 20, 1990·43 cites·6 claims
- 0592US5522357AApparatus and method of fuel injection and ignition of internal combustion engineHITACHI LTD·Filed 1994·Granted Jun 4, 1996·57 cites·14 claims
- 0692US5150635AMethod and appartaus for controlling driving power of motor vehicleHITACHI LTD·Filed 1991·Granted Sep 29, 1992·67 cites·35 claims
- 0792US4142407AAir flow metering apparatus for internal combustion enginesHITACHI LTD·Filed 1977·Granted Mar 6, 1979·54 cites·11 claims
- 0889US5496227ATorque control method and apparatus for internal combustion engine and motor vehicles employing the sameHITACHI LTD·Filed 1994·Granted Mar 5, 1996·77 cites·43 claims
- 0989US5027778AFuel injection control apparatusHITACHI LTD·Filed 1989·Granted Jul 2, 1991·40 cites·26 claims
- 1088US5357749AApparatus for controlling exhaust concentrationHITACHI LTD·Filed 1992·Granted Oct 25, 1994·65 cites·25 claims
- 1186US5360166AFuel injection valveHITACHI LTD·Filed 1992·Granted Nov 1, 1994·46 cites·11 claims
- 1286US4448070AHot-wire type flow velocity meterHITACHI LTD·Filed 1982·Granted May 15, 1984·32 cites·9 claims
- 1384US6516264B2Control apparatus for drive systemHITACHI LTD·Filed 2001·Granted Feb 4, 2003·30 cites·5 claims
- 1483US4450719AAir flow meterHITACHI LTD·Filed 1982·Granted May 29, 1984·33 cites·10 claims
- 1581US5140965ASystem for and method of supplying fuel to internal combustion engineHITACHI LTD·Filed 1991·Granted Aug 25, 1992·33 cites·39 claims
- 1681US4494405AAir-flow meter for internal combustion engineHITACHI LTD·Filed 1982·Granted Jan 22, 1985·33 cites·8 claims
- 1780US5894724AEngine system and engine control methodHITACHI LTD·Filed 1996·Granted Apr 20, 1999·50 cites·20 claims
- 1880US4404846AAir flow rate measuring device incorporating hot wire type air flow meterHITACHI LTD·Filed 1981·Granted Sep 20, 1983·32 cites·4 claims
- 1978US5643133AChange gear control device using acceleration and gear ratio as parameters for automatic transmission in a motor vehicle and the method thereforHITACHI LTD·Filed 1994·Granted Jul 1, 1997·25 cites·10 claims
- 2078US5470290AChange gear control device using acceleration and gear ratio as parameters for automatic transmission in a motor vehicle and the method thereforHITACHI LTD·Filed 1993·Granted Nov 28, 1995·24 cites·11 claims
- 2176US6058348AControl apparatus for drive system composed of engine and transmissionHITACHI LTD·Filed 1995·Granted May 2, 2000·39 cites·1 claims
- 2271US5746679AMethod and apparatus for controlling driving power of motor vehicleHITACHI LTD·Filed 1996·Granted May 5, 1998·16 cites·3 claims
- 2359US5025766AFuel injection valve and fuel supply system equipped therewith for internal combustion enginesHITACHI LTD·Filed 1988·Granted Jun 25, 1991·15 cites·17 claims
- 2458US6000378AChange gear control device using acceleration and gear ratio as parameters for automatic transmission in a motor vehicle and the method thereforHITACHI LTD·Filed 1998·Granted Dec 14, 1999·17 cites·12 claims
- 2558US5813387AChange gear control device using acceleration and gear ratio as parameters for automatic transmission in a motor vehicle and the method thereforHITACHI LTD·Filed 1996·Granted Sep 29, 1998·22 cites·3 claims
- 2658US5603673AChange gear control device using acceleration and gear ratio as parameters for automatic transmission in a motor vehicle and the method thereforHITACHI LTD·Filed 1995·Granted Feb 18, 1997·15 cites·16 claims
- 2758US5325828AAir intake arrangement for internal combustion engineHITACHI LTD·Filed 1993·Granted Jul 5, 1994·18 cites·26 claims
- 2855US5235876AChange gear control device using acceleration and gear ratio as parameters for automatic transmission in motor vehicle and the method thereforHITACHI LTD·Filed 1992·Granted Aug 17, 1993·21 cites·8 claims
- 2954US6298300B1Control apparatus for drive system composed of engine and transmissionHITACHI LTD·Filed 1999·Granted Oct 2, 2001·16 cites·5 claims
- 3054US5099815AFuel injection valve and fuel supply system equipped therewith for internal combustion enginesHITACHI LTD·Filed 1990·Granted Mar 31, 1992·23 cites·15 claims
- 3152US5261373AEngine exhaust gas recirculation systemHITACHI LTD·Filed 1991·Granted Nov 16, 1993·22 cites·4 claims
- 3250US5580330AMethod and apparatus for controlling driving power of motor vehicleHITACHI LTD·Filed 1994·Granted Dec 3, 1996·12 cites·48 claims
- 3350US5117795AAir-fuel mixture supply apparatus for internal combustion engineHITACHI LTD·Filed 1990·Granted Jun 2, 1992·11 cites·12 claims
- 3449USRE37269EAir intake arrangement for internal combustion engineHITACHI LTD·Filed 1996·Granted Jul 10, 2001·12 cites·130 claims
- 3544US4966033AAir flow metering apparatus for internal combustion enginesHITACHI LTD·Filed 1989·Granted Oct 30, 1990·8 cites·19 claims
- 3643US5343781AMethod and apparatus for controlling driving power of motor vehicleHITACHI LTD·Filed 1992·Granted Sep 6, 1994·9 cites·11 claims
- 3740US5203983AAir-fuel ratio sensor for an internal combustion engine and an air-fuel ratio control apparatus using the sameHITACHI LTD·Filed 1990·Granted Apr 20, 1993·8 cites·12 claims
- 3836US6248040B1Engine system and engine control methodHITACHI LTD·Filed 1999·Granted Jun 19, 2001·6 cites·5 claims
- 3930US4850219AMethod and apparatus for measuring the quantity of intake air based on the temperature variation caused by heat dissipationHITACHI LTD·Filed 1988·Granted Jul 25, 1989·0 cites·28 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →