Inventor · disambiguated record
Koji Iwaki
Also filed as: IWAKI KOJI
54 granted patents·16 pending applications·277 citations·filing 1996–2025
98Inventor score
Files withKANZAKI KOKYUKOKI MFG CO LTD52IWAKI KOJI7ISHII NORIHIRO3HASEGAWA TOSHIYUKI2ISHINO FUMITOSHI1
Top patents by PatentIndex Score
70 records- 0197US9248737B2Transmission for working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2015·Granted Feb 2, 2016·19 cites·6 claims
- 0294US10888047B2Parking brake apparatus for vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2019·Granted Jan 12, 2021·6 cites·11 claims
- 0392US9797485B2Belt type continuously variable transmission deviceKANZAKI KOKYUKOKI MFG CO LTD·Filed 2016·Granted Oct 24, 2017·7 cites·8 claims
- 0492US9487085B2Transaxle and working vehicle equipped with the transaxleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2015·Granted Nov 8, 2016·6 cites·6 claims
- 0590US10591036B2TransaxleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2017·Granted Mar 17, 2020·6 cites·3 claims
- 0689US11644091B2Hydromechanical continuously variable speed transmissionKANZAKI KOKYUKOKI MFG CO LTD·Filed 2022·Granted May 9, 2023·2 cites·3 claims
- 0789US8381853B2Electric vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2010·Granted Feb 26, 2013·16 cites·6 claims
- 0889US7690470B2Hydrostatic transaxleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2007·Granted Apr 6, 2010·21 cites·6 claims
- 0988US9964126B2Transaxle including brakeKANZAKI KOKYUKOKI MFG CO LTD·Filed 2015·Granted May 8, 2018·6 cites·2 claims
- 1088US8806864B2TransmissionISHII NORIHIRO·Filed 2010·Granted Aug 19, 2014·9 cites·11 claims
- 1187US9475384B2Powertrain system for vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2014·Granted Oct 25, 2016·8 cites·6 claims
- 1287US8800279B2Hydraulic transmission system for zero-turn vehicleKITA TSUYOSHI·Filed 2011·Granted Aug 12, 2014·16 cites·10 claims
- 1387US7415823B2Hydraulically driven working vehicle and hydraulic transaxleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2006·Granted Aug 26, 2008·20 cites·45 claims
- 1484US7980339B2Power transmission system of hydraulically driven working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2010·Granted Jul 19, 2011·8 cites·19 claims
- 1584US7900735B2Hydrostatic transaxleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2010·Granted Mar 8, 2011·8 cites·2 claims
- 1683US7588103B2Hydrostatic transaxle and hydraulically driven vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2005·Granted Sep 15, 2009·12 cites·9 claims
- 1782US7726425B2Power transmission system of hydraulically driven working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2006·Granted Jun 1, 2010·9 cites·16 claims
- 1880US8281892B2Working vehicle and HST unitSUGIMOTO HIROSHI·Filed 2009·Granted Oct 9, 2012·10 cites·14 claims
- 1979US11933391B2HST and transmission deviceKANZAKI KOKYUKOKI MFG CO LTD·Filed 2020·Granted Mar 19, 2024·1 cites·12 claims
- 2079US11293528B2Working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2019·Granted Apr 5, 2022·2 cites·11 claims
- 2178US12510144B2Transmission structureKANZAKI KOKYUKOKI MFG CO LTD·Filed 2024·Granted Dec 30, 2025·0 cites·11 claims
- 2278US2024344601A1Hst and transmission deviceKANZAKI KOKYUKOKI MFG CO LTD·Filed 2024·Application pending·0 cites
- 2377US11841067B2Transmission structureKANZAKI KOKYUKOKI MFG CO LTD·Filed 2020·Granted Dec 12, 2023·1 cites·20 claims
- 2477US11767904B2Transmission structure and working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2023·Granted Sep 26, 2023·0 cites·7 claims
- 2577US8337353B2Traveling system transmission structure for vehicleIWAKI KOJI·Filed 2009·Granted Dec 25, 2012·8 cites·7 claims
- 2675US7036622B2Tractor frame and method of manufacture thereforIWAKI KOJI·Filed 2002·Granted May 2, 2006·24 cites·12 claims
- 2774US10711887B2Transaxle and vehicle with itKANZAKI KOKYUKOKI MFG CO LTD·Filed 2018·Granted Jul 14, 2020·1 cites·5 claims
- 2873US8758195B2Traveling speed control system for work vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2013·Granted Jun 24, 2014·4 cites·6 claims
- 2972US11572939B2Transmission structure and working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2021·Granted Feb 7, 2023·0 cites·14 claims
- 3071US8887500B2Hydraulic transaxleKANENOBU HIDEKI·Filed 2012·Granted Nov 18, 2014·3 cites·13 claims
- 3170US7431122B2Hydraulic axle-drive deviceKANZAKI KOKYUKOKI MFG CO LTD·Filed 2004·Granted Oct 7, 2008·16 cites·19 claims
- 3268US10408278B2Clutch system hydraulically controlling axial slide action of clutch sliderKANZAKI KOKYUKOKI MFG CO LTD·Filed 2016·Granted Sep 10, 2019·1 cites·2 claims
- 3368US8459398B2Wheel motor deviceIWAKI KOJI·Filed 2012·Granted Jun 11, 2013·3 cites·4 claims
- 3466US11204097B2Transmission structure and working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2019·Granted Dec 21, 2021·0 cites·27 claims
- 3566US8838348B2Drive system control device for working vehicleOOUCHIDA TAKESHI·Filed 2011·Granted Sep 16, 2014·4 cites·3 claims
- 3665US7980351B2Hydraulic transaxleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2008·Granted Jul 19, 2011·5 cites·30 claims
- 3762US7647770B2Hydraulically driven working vehicle and hydraulic transaxleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2008·Granted Jan 19, 2010·4 cites·17 claims
- 3861US2024328496A1Hmt structure and hst unitKANZAKI KOKYUKOKI MFG CO LTD·Filed 2024·Application pending·0 cites
- 3960US12473964B2HST and transmissionKANZAKI KOKYUKOKI MFG CO LTD·Filed 2024·Granted Nov 18, 2025·0 cites·9 claims
- 4060US10641389B2Actuator unit for controlling hydraulic pumpKANZAKI KOKYUKOKI MFG CO LTD·Filed 2017·Granted May 5, 2020·0 cites·5 claims
- 4160US9453519B2TransaxleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2014·Granted Sep 27, 2016·1 cites·8 claims
- 4258US8205708B2Hydraulic transaxleSAKAKURA SHINYA·Filed 2008·Granted Jun 26, 2012·3 cites·10 claims
- 4357US2025256567A1Electric transmission and work vehicle including the sameKANZAKI KOKYUKOKI MFG CO LTD·Filed 2025·Application pending·0 cites
- 4455US12072008B2Transmission structure and working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2023·Granted Aug 27, 2024·0 cites·5 claims
- 4554US2016040691A1Control mechanism for hydrostatic transmissionKANZAKI KOKYUKOKI MFG CO LTD·Filed 2015·Application pending·0 cites
- 4653US2024208322A1Traveling vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2023·Application pending·0 cites
- 4751US11535208B2Hydraulic transaxleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2019·Granted Dec 27, 2022·0 cites·10 claims
- 4851US9334934B2Belt type continuously variable transmissionISHINO FUMITOSHI·Filed 2011·Granted May 10, 2016·1 cites·14 claims
- 4951US2015011344A1Belt type continuously variable transmission deviceKANZAKI KOKYUKOKI MFG CO LTD·Filed 2014·Application pending·0 cites
- 5048US11547051B2Hydrostatic transaxleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2018·Granted Jan 10, 2023·0 cites·8 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →