Inventor · disambiguated record
Keizo Hiraku
Also filed as: HIRAKU KEIZO
17 granted patents·178 citations·filing 2001–2009
93Inventor score
Top patents by PatentIndex Score
17 records- 0191US8551908B2Exhaust gas purification catalystSATOU AKEMI·Filed 2009·Granted Oct 8, 2013·30 cites·12 claims
- 0284US6732707B2Control system and method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2002·Granted May 11, 2004·28 cites·24 claims
- 0380US6848422B2Control system and method for internal combustion engine with variable valve mechanismTOYOTA MOTOR CO LTD·Filed 2003·Granted Feb 1, 2005·18 cites·11 claims
- 0480US6834627B2Intake air amount control apparatus and method of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2004·Granted Dec 28, 2004·26 cites·18 claims
- 0576US6651602B2Heater control apparatus and heater control methodTOYOTA MOTOR CO LTD·Filed 2001·Granted Nov 25, 2003·16 cites·16 claims
- 0674US7610898B2Apparatus and method for controlling idle speed of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Nov 3, 2009·8 cites·13 claims
- 0769US7121260B2Ignition timing control apparatus for engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Oct 17, 2006·8 cites·60 claims
- 0868US7082923B2Idling speed control system and methodDENSO CORP·Filed 2005·Granted Aug 1, 2006·4 cites·8 claims
- 0964US6691675B2Warm-up control apparatus and warm-up control method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2002·Granted Feb 17, 2004·12 cites·22 claims
- 1059US6989978B2Power circuit device for vehicles and control method thereofTOYOTA MOTOR CO LTD·Filed 2002·Granted Jan 24, 2006·9 cites·18 claims
- 1150US6712038B2Intake device for an internal combustion engine and method thereofTOYOTA MOTOR CO LTD·Filed 2002·Granted Mar 30, 2004·9 cites·12 claims
- 1244US7363889B2Control device for multicylinder internal combustion engineTOYOTA MOTOR CO LTD·Filed 2004·Granted Apr 29, 2008·4 cites·11 claims
- 1343US7032550B2Inter-cylinder variation detection device and inter-bank variation detection device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2004·Granted Apr 25, 2006·4 cites·16 claims
- 1441US7066145B2Intake air amount control apparatus and intake air amount control method for internal combustion enginesDENSO CORP·Filed 2004·Granted Jun 27, 2006·2 cites·15 claims
- 1537US6501050B2Fuel heating control method and systemTOYOTA MOTOR CO LTD·Filed 2001·Granted Dec 31, 2002·0 cites·16 claims
- 1635US7464693B2Internal combustion engine including plural cylinders, control apparatus and control method for internal combustion engine including plural cylindersTOYOTA MOTOR CO LTD·Filed 2004·Granted Dec 16, 2008·0 cites·12 claims
- 1734US6792929B2Method for detecting failure of injection fuel heaters of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2002·Granted Sep 21, 2004·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →