Inventor · disambiguated record
Koichi Hatamura
Also filed as: HATAMURA KOICHI
26 granted patents·3 pending applications·340 citations·filing 1985–2019
96Inventor score
Files withMAZDA MOTOR9YAMAHA MOTOR CO LTD9HATAMURA KOICHI4KOKUSAN PARTS INDUSTRY CO LTD2CD ADAPCO JAPAN CO LTD A CORP1
Top patents by PatentIndex Score
29 records- 0193US7753037B2EngineHATAMURA KOICHI·Filed 2005·Granted Jul 13, 2010·26 cites·5 claims
- 0292US7168403B2Valve train device for engineYAMAHA MOTOR CO LTD·Filed 2005·Granted Jan 30, 2007·15 cites·21 claims
- 0390US7204491B2Metal gasketKOKUSAN PARTS INDUSTRY CO LTD·Filed 2005·Granted Apr 17, 2007·28 cites·13 claims
- 0489US4630575AIntake system for multicylinder engineMAZDA MOTOR·Filed 1985·Granted Dec 23, 1986·62 cites·17 claims
- 0579US8534261B2Four-cycle engineHATAMURA KOICHI·Filed 2008·Granted Sep 17, 2013·7 cites·19 claims
- 0677US4702207AIntake arrangement for internal combustion engineMAZDA MOTOR·Filed 1985·Granted Oct 27, 1987·30 cites·16 claims
- 0777US4649871AIntake system for V-type engineMAZDA MOTOR·Filed 1985·Granted Mar 17, 1987·30 cites·22 claims
- 0876US7469669B2Variable valve train mechanism of internal combustion engineYAMAHA MOTOR CO LTD·Filed 2005·Granted Dec 30, 2008·6 cites·15 claims
- 0976US7096835B2Valve train device for an engineYAMAHA MOTOR CO LTD·Filed 2004·Granted Aug 29, 2006·14 cites·20 claims
- 1076US7069890B2Valve train device for an engineYAMAHA MOTOR CO LTD·Filed 2004·Granted Jul 4, 2006·14 cites·17 claims
- 1175US11492962B2Power generation device and automobileUNIV HIROSHIMA·Filed 2019·Granted Nov 8, 2022·2 cites·8 claims
- 1274US8468800B2Secondary air and exhaust gas recirculation for a four-stroke internal combustion engineHATAMURA KOICHI·Filed 2008·Granted Jun 25, 2013·8 cites·4 claims
- 1370US7281504B2Valve train device for engineYAMAHA MOTOR CO LTD·Filed 2005·Granted Oct 16, 2007·4 cites·22 claims
- 1468US8065988B2Four-cycle engineHATAMURA KOICHI·Filed 2007·Granted Nov 29, 2011·6 cites·13 claims
- 1566US4919087AIntake system for V-type vehicle engineMAZDA MOTOR·Filed 1988·Granted Apr 24, 1990·23 cites·15 claims
- 1665US7398750B2Valve mechanism for internal combustion engineYAMAHA MOTOR CO LTD·Filed 2006·Granted Jul 15, 2008·3 cites·9 claims
- 1759US7308874B2Valve mechanism for an internal combustion engineYAMAHA MOTOR CO LTD·Filed 2006·Granted Dec 18, 2007·2 cites·7 claims
- 1854US4686944AIntake manifold structure for V-type engineMAZDA MOTOR·Filed 1986·Granted Aug 18, 1987·16 cites·9 claims
- 1949US5090392AControl system for engine with superchargerMAZDA MOTOR·Filed 1990·Granted Feb 25, 1992·12 cites·7 claims
- 2049US2007170659A1Metal gasketKOKUSAN PARTS INDUSTRY CO LTD·Filed 2007·Application pending·0 cites
- 2148US9494061B2Variable valve systemOGINO KOGYO CO LTD·Filed 2014·Granted Nov 15, 2016·1 cites·2 claims
- 2248US7584730B2Valve train device for engineYAMAHA MOTOR CO LTD·Filed 2007·Granted Sep 8, 2009·0 cites·13 claims
- 2346US6651610B2Engine control systemMAZDA MOTOR·Filed 2001·Granted Nov 25, 2003·4 cites·3 claims
- 2443US4736714AEngine intake systemMAZDA MOTOR·Filed 1986·Granted Apr 12, 1988·9 cites·19 claims
- 2543US4625687AIntake arrangement for internal combustion engineMAZDA MOTOR·Filed 1985·Granted Dec 2, 1986·9 cites·16 claims
- 2642US7980210B2Variable valve drive system for engineYAMAHA MOTOR CO LTD·Filed 2007·Granted Jul 19, 2011·0 cites·12 claims
- 2741US2010180859A1Four-cycle engineCD ADAPCO JAPAN CO LTD A CORP·Filed 2008·Application pending·0 cites
- 2838US5377649ALubricating device for engine-driven superchargerISHIKAWAJIMA HARIMA HEAVY IND·Filed 1992·Granted Jan 3, 1995·9 cites·3 claims
- 2937US2006207533A1Valve mechanism for an internal combustion engineFUJITA HIDEO·Filed 2006·Application pending·0 cites
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