Inventor · disambiguated record
Kazuyoshi Hiraiwa
Also filed as: HIRAIWA KAZUYOSHI · JAPAN KAZUYOSHI HIRAIWA
55 granted patents·7 pending applications·993 citations·filing 1976–2022
99Inventor score
Top patents by PatentIndex Score
62 records- 0198US4660439APlanetary gear train for automatic transmissionNISSAN MOTOR·Filed 1984·Granted Apr 28, 1987·121 cites·16 claims
- 0298US4658663ASynchromesh transmission suited for use as automotive automatic transmissionNISSAN MOTOR·Filed 1985·Granted Apr 21, 1987·97 cites·10 claims
- 0397US6793600B2Powertrain for hybrid electric vehiclesHIRAIWA KAZUYOSHI·Filed 2001·Granted Sep 21, 2004·95 cites·5 claims
- 0495US7340973B2Twin-clutch transmissionKYOWA METAL WORKS CO LTD·Filed 2004·Granted Mar 11, 2008·74 cites·9 claims
- 0595US4476953AFour-wheel vehicle drive systemNISSAN MOTOR·Filed 1982·Granted Oct 16, 1984·60 cites·10 claims
- 0690US4653348APlanetary gear train for automatic transmissionNISSAN MOTOR·Filed 1985·Granted Mar 31, 1987·45 cites·16 claims
- 0789US9033836B2Drive device for hybrid electric vehicleFINEMECH CO LTD·Filed 2012·Granted May 19, 2015·14 cites·19 claims
- 0888US4774856APlanetary gear trainNISSAN MOTOR·Filed 1987·Granted Oct 4, 1988·39 cites·43 claims
- 0988US4584892AManual transmission synchronizerNISSAN MOTOR·Filed 1982·Granted Apr 29, 1986·32 cites·6 claims
- 1084US7717246B2Shift device with synchronizer adapted for transmissionKYOWA METAL WORKS CO LTD·Filed 2007·Granted May 18, 2010·8 cites·11 claims
- 1184US7429228B2Multi-speed automatic transmission for motor vehicleHIRAIWA KAZUYOSHI·Filed 2006·Granted Sep 30, 2008·12 cites·5 claims
- 1283US7637839B2Multi-speed automatic transmission adapted for motor vehicleKYOWA METAL WORKS CO LTD·Filed 2007·Granted Dec 29, 2009·11 cites·6 claims
- 1381US4823628ASynchromesh transmission suited for use as an automotive automatic transmissionNISSAN MOTOR·Filed 1982·Granted Apr 25, 1989·34 cites·11 claims
- 1481US4805484APower transfer mechanism for four-wheel driveNISSAN MOTOR·Filed 1987·Granted Feb 21, 1989·29 cites·11 claims
- 1580US7108629B2Multi-stage planetary gear trainHIRAIWA KAZUYOSHI·Filed 2004·Granted Sep 19, 2006·19 cites·18 claims
- 1678US8556054B2Shift device adapted for transmissionHIRAIWA KAZUYOSHI·Filed 2010·Granted Oct 15, 2013·4 cites·4 claims
- 1775US7314029B2Variable valve timing device adapted for internal combustion engineHIRAIWA KAZUYOSHI·Filed 2006·Granted Jan 1, 2008·5 cites·15 claims
- 1871US4802385AAutomatic transmission's ravigneaux type planetary gear train having two ring gearsNISSAN MOTOR·Filed 1986·Granted Feb 7, 1989·22 cites·10 claims
- 1967US4638688APlanetary gear train for automotive transmission or the likeNISSAN MOTOR·Filed 1984·Granted Jan 27, 1987·19 cites·6 claims
- 2067US4613008A2WD-4WD change-over control system responsive to rainfall and accelerationNISSAN MOTOR·Filed 1985·Granted Sep 23, 1986·25 cites·6 claims
- 2166US5695033ASynchronizing apparatus for transmissionKYOWA METAL WORKS CO LTD·Filed 1996·Granted Dec 9, 1997·19 cites·5 claims
- 2264US5518465APlanetary geartrainFiled 1994·Granted May 21, 1996·17 cites·4 claims
- 2364US4466305AReverse idler gear operating mechanismNISSAN MOTOR·Filed 1982·Granted Aug 21, 1984·18 cites·1 claims
- 2462US7753185B2Shift device with synchronizer adapted for transmissionKYOWA METAL WORKS CO LTD·Filed 2006·Granted Jul 13, 2010·2 cites·19 claims
- 2562US4415786AApparatus for detecting the neutral position of a manual transmission for motor vehiclesNISSAN MOTOR·Filed 1982·Granted Nov 15, 1983·11 cites·2 claims
- 2660US5083478AFour-wheel vehicle drive systemNISSAN MOTOR·Filed 1982·Granted Jan 28, 1992·18 cites·12 claims
- 2757US4177886AParking brake mechanism for motor vehicle equipped with power transmission with torque converterNISSAN MOTOR·Filed 1977·Granted Dec 11, 1979·11 cites·11 claims
- 2857US2024079921A1Motor generatorFINEMECH CO LTD·Filed 2022·Application pending·0 cites
- 2956US4267907AClutch control apparatus of an automotive power transmissionNISSAN MOTOR·Filed 1978·Granted May 19, 1981·11 cites·3 claims
- 3054US5503241AElectrically power-assisted steering apparatusRHYTHM CORP·Filed 1994·Granted Apr 2, 1996·19 cites·6 claims
- 3154US4693334AFour wheel drive systemNISSAN MOTOR·Filed 1986·Granted Sep 15, 1987·15 cites·6 claims
- 3251US8307969B2Shift device with synchronizerHIRAIWA KAZUYOSHI·Filed 2009·Granted Nov 13, 2012·0 cites·6 claims
- 3350US4526052ASynchromesh mechanism for transmissionNISSAN MOTOR·Filed 1982·Granted Jul 2, 1985·10 cites·8 claims
- 3449US4653347APlanetary gear train of automatic transmissionNISSAN MOTOR·Filed 1986·Granted Mar 31, 1987·10 cites·7 claims
- 3548US4745824AManual transmission with mechanism for preventing reverse gear shift noiseNISSAN MOTOR·Filed 1985·Granted May 24, 1988·10 cites·18 claims
- 3647US4674346ATransmission with reverse and fifth speed synchronizerNISSAN MOTOR·Filed 1984·Granted Jun 23, 1987·8 cites·15 claims
- 3747US2014335997A1Drive device for hybrid electric vehicleFINEMECH CO LTD·Filed 2014·Application pending·0 cites
- 3846US2009305837A1Planetary gear type multi-stage transmissionHIRAIWA KAZUYOSHI·Filed 2009·Application pending·0 cites
- 3946US2013267378A1Drive device for hybrid electric vehicleFINEMECH CO LTD·Filed 2013·Application pending·0 cites
- 4044US9347499B2Shift device with synchronizerKYOWA METAL WORKS CO LTD·Filed 2013·Granted May 24, 2016·0 cites·20 claims
- 4144US9316269B2Shift device with synchronizerKYOWA METAL WORKS CO LTD·Filed 2013·Granted Apr 19, 2016·0 cites·20 claims
- 4244US7302923B2Variable valve timing device adapted for internal combustion engineHIRAIWA KAZUYOSHI·Filed 2006·Granted Dec 4, 2007·0 cites·8 claims
- 4343US9341240B2Shift device with synchronizerKYOWA METAL WORKS CO LTD·Filed 2013·Granted May 17, 2016·0 cites·15 claims
- 4442US4507981ATransmission shift control mechanismNISSAN MOTOR·Filed 1982·Granted Apr 2, 1985·9 cites·9 claims
- 4541US2019351754A1Propelling equipment for a motor vehicleFINEMECH CO LTD·Filed 2019·Application pending·0 cites
- 4640US4257509AHydraulic clutch with dual pistonsNISSAN MOTOR·Filed 1977·Granted Mar 24, 1981·6 cites·7 claims
- 4740US2004163917A1Synchronizer for speed reducerFiled 2001·Application pending·0 cites
- 4839US8567583B2Shift device adapted for transmissionHIRAIWA KAZUYOSHI·Filed 2010·Granted Oct 29, 2013·0 cites·16 claims
- 4939US4635744AFour-wheel drive automotive vehicleNISSAN MOTOR·Filed 1984·Granted Jan 13, 1987·8 cites·9 claims
- 5038US9719565B2Shift device with synchronizerKYOWA METAL WORKS CO LTD·Filed 2015·Granted Aug 1, 2017·0 cites·20 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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