Inventor · disambiguated record
Kyugo Hamai
Also filed as: HAMAI KYUGO
22 granted patents·4 pending applications·560 citations·filing 1978–2008
96Inventor score
Top patents by PatentIndex Score
26 records- 0195US6184603B1Motor/generator unit applicable to automotive vehicleUNISIA JECS CORP·Filed 2000·Granted Feb 6, 2001·131 cites·20 claims
- 0295US4327698AExhaust gas recirculating deviceNISSAN MOTOR·Filed 1980·Granted May 4, 1982·54 cites·11 claims
- 0394US4502454AIgnition system for an internal combustion engineNISSAN MOTOR·Filed 1982·Granted Mar 5, 1985·53 cites·25 claims
- 0494US4276865ADiesel engine having a subchamberNISSAN MOTOR·Filed 1979·Granted Jul 7, 1981·42 cites·5 claims
- 0584US4398526APlasma ignition system for internal combustion engineNISSAN MOTOR·Filed 1981·Granted Aug 16, 1983·46 cites·14 claims
- 0677US4457285ASustained arc ignition system for an internal combustion engineNISSAN MOTOR·Filed 1982·Granted Jul 3, 1984·18 cites·6 claims
- 0774US6638193B2Transmission system for automotive vehicleUNISIA JECS CORP·Filed 2001·Granted Oct 28, 2003·28 cites·20 claims
- 0864US5107807APiston for internal combustion engineNISSAN MOTOR·Filed 1990·Granted Apr 28, 1992·18 cites·10 claims
- 0963US4944256ARocker arm arrangement for internal combustion engine poppet valves and the likeNISSAN MOTOR·Filed 1989·Granted Jul 31, 1990·17 cites·10 claims
- 1063US4928650AOperating arrangement for internal combustion engine poppet valves and the likeNISSAN MOTOR·Filed 1989·Granted May 29, 1990·18 cites·16 claims
- 1161US7244210B2Power transmission apparatus for vehicle and vehicle-driving electric machinery system using the sameHITACHI LTD·Filed 2004·Granted Jul 17, 2007·13 cites·25 claims
- 1261US4442821AInternal combustion engine ignition methodNISSAN MOTOR·Filed 1981·Granted Apr 17, 1984·10 cites·8 claims
- 1360US4497306AIgnition system for an internal combustion engineNISSAN MOTOR·Filed 1982·Granted Feb 5, 1985·11 cites·8 claims
- 1460US4237827ASwirl-chamber diesel engine with piston formed with curved groove at its crownNISSAN MOTOR·Filed 1978·Granted Dec 9, 1980·13 cites·7 claims
- 1559US4354136AIgnition plug for internal combustion engineNISSAN MOTOR·Filed 1980·Granted Oct 12, 1982·15 cites·9 claims
- 1657US4395983ASwirl-chamber Diesel engine with swirl chamber having depression for collecting fuel dropletsNISSAN MOTOR·Filed 1981·Granted Aug 2, 1983·14 cites·9 claims
- 1754US5035210APiston assembly of internal combustion engineNISSAN MOTOR·Filed 1990·Granted Jul 30, 1991·13 cites·6 claims
- 1851US4694797AFuel supply system for internal combustion engineNISSAN MOTOR·Filed 1986·Granted Sep 22, 1987·9 cites·7 claims
- 1949US4419601ASpark plug for internal combustion engineNISSAN MOTOR·Filed 1980·Granted Dec 6, 1983·10 cites·4 claims
- 2048US4211189AInternal combustion engine with dual induction system and more particularly to combustion chamber design thereofNISSAN MOTOR·Filed 1978·Granted Jul 8, 1980·8 cites·7 claims
- 2145US2008176707A1Vehicle Drive DeviceHITACHI LTD·Filed 2008·Application pending·0 cites
- 2242US5193436AEngine pistonNISSAN MOTOR·Filed 1992·Granted Mar 16, 1993·12 cites·4 claims
- 2341US4475492ASystem for forcefully igniting sprayed fuel of a diesel engine during engine startingNISSAN MOTOR·Filed 1982·Granted Oct 9, 1984·7 cites·14 claims
- 2441US2005211490A1Vehicle drive device and four-wheel drive with motorHITACHI LTD·Filed 2005·Application pending·0 cites
- 2539US2007038340A1Running controller and electric running control system for electric vehicleHITACHI LTD·Filed 2006·Application pending·0 cites
- 2636US2002094899A1Transmission unitUNISIA JECS CORP·Filed 2002·Application pending·0 cites
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