Inventor · disambiguated record
Tadataka Nakazumi
Also filed as: NAKAZUMI TADATAKA · ODA TATSURO · TANAKA KAZUYUKI
15 granted patents·429 citations·filing 1977–1998
94Inventor score
Top patents by PatentIndex Score
15 records- 0195US4508078AElectrically operated engine throttle valve actuating deviceMAZDA MOTOR·Filed 1983·Granted Apr 2, 1985·53 cites·5 claims
- 0293US4691677AThrottle valve control system for internal combustion engineMAZDA MOTOR·Filed 1986·Granted Sep 8, 1987·59 cites·10 claims
- 0387US5950419AMethod of and system for purifying exhaust gas for enginesMAZDA MOTOR·Filed 1995·Granted Sep 14, 1999·98 cites·126 claims
- 0484US4174027AExhaust gas recirculation apparatus controlled by clutch, throttle and timerTOYO KOGYO CO·Filed 1977·Granted Nov 13, 1979·22 cites·9 claims
- 0579US4669439AAir-to-fuel ratio control systems for internal combustion enginesMAZDA MOTOR·Filed 1985·Granted Jun 2, 1987·26 cites·13 claims
- 0676US4763629AAir-fuel ratio control system for engineMAZDA MOTOR·Filed 1987·Granted Aug 16, 1988·22 cites·8 claims
- 0775US6141960AExhaust gas purifying system for engineMAZDA MOTOR·Filed 1998·Granted Nov 7, 2000·38 cites·16 claims
- 0867US4561404AFuel injection system for an engineMITSUBISHI ELECTRIC CORP·Filed 1984·Granted Dec 31, 1985·15 cites·5 claims
- 0965US4682044AEngine idling load control meansMAZDA MOTOR·Filed 1985·Granted Jul 21, 1987·38 cites·9 claims
- 1051US4532905AFuel injection control system for controlling the fuel distribution to the cylinders of a multi-cylinder internal combustion engineMAZDA MOTOR·Filed 1984·Granted Aug 6, 1985·9 cites·14 claims
- 1150US5501074AExhaust gas purifying systemMAZDA MOTOR·Filed 1994·Granted Mar 26, 1996·21 cites·7 claims
- 1250US4215542AExhaust gas purifying apparatus for automobile multi-cylinder engineTOYO KOGYO CO·Filed 1978·Granted Aug 5, 1980·13 cites·8 claims
- 1339US4215541ADual-catalyst exhaust gas purifying apparatus for multi-cylinder engineTOYO KOGYO CO·Filed 1978·Granted Aug 5, 1980·8 cites·8 claims
- 1438US4787357AIntake system for an internal combustion engineMAZDA MOTOR·Filed 1986·Granted Nov 29, 1988·5 cites·6 claims
- 1532US4215540AExhaust gas purifying apparatus for automobile multi-cylinder engineTOYO KOGYO CO·Filed 1978·Granted Aug 5, 1980·2 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →