Inventor · disambiguated record
Ryota Ohashi
Also filed as: OHASHI RYOTA
139 granted patents·14 pending applications·3,630 citations·filing 1976–2022
99Inventor score
Top patents by PatentIndex Score
153 records- 0198US7673712B2Power transmission system for working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2006·Granted Mar 9, 2010·42 cites·19 claims
- 0298US6988580B2Pump unit and working vehicleOHASHI RYOTA·Filed 2003·Granted Jan 24, 2006·58 cites·13 claims
- 0398US6487856B1Tandem pump unitKANZAKI KOKYUKOKI MFG CO LTD·Filed 2000·Granted Dec 3, 2002·89 cites·22 claims
- 0498US6425244B1Pump unitKANZAKI KOKYUKOKI MFG CO LTD·Filed 2000·Granted Jul 30, 2002·112 cites·11 claims
- 0598US6125630AAxle driving apparatusTUFF TORQ CORP·Filed 1995·Granted Oct 3, 2000·99 cites·35 claims
- 0698US5836159AMechanism of returning to neutral for axle driving apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 1997·Granted Nov 17, 1998·106 cites·3 claims
- 0798US4893524AHST system axle driving apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 1988·Granted Jan 16, 1990·125 cites·4 claims
- 0897US8046992B2Axle driving apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 2009·Granted Nov 1, 2011·15 cites·18 claims
- 0997US7610986B2HST unitKANZAKI KOKYUKOKI MFG CO LTD·Filed 2007·Granted Nov 3, 2009·40 cites·6 claims
- 1097US6736605B2Tandem pump unitKANZAKI KOKYUKOKI MFG CO LTD·Filed 2002·Granted May 18, 2004·67 cites·11 claims
- 1197US6619038B2Axle driving apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 2001·Granted Sep 16, 2003·63 cites·21 claims
- 1297US6571555B2Axle driving apparatusTUFF TORQ CORP·Filed 2002·Granted Jun 3, 2003·39 cites·3 claims
- 1397US5339631AAxle driving systemKANZAKI KOKYUKOKI MFG CO LTD·Filed 1993·Granted Aug 23, 1994·166 cites·43 claims
- 1497US5311740AHydraulic power transmissionKANZAKI KOKYUKOKI MFG CO LTD·Filed 1992·Granted May 17, 1994·99 cites·24 claims
- 1597US4922787AHST (hydrostatic transmission) housing axle driving apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 1988·Granted May 8, 1990·97 cites·2 claims
- 1697US4856368AHST (hydrostatic transmission) containing axle drive apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 1988·Granted Aug 15, 1989·111 cites·5 claims
- 1796US6550242B2Axle driving apparatusTUFF TORQ CORP·Filed 2000·Granted Apr 22, 2003·41 cites·20 claims
- 1896US6098740AAxle driving unit for a lawn tractorKANZAKI KOKYUKOKI MFG CO LTD·Filed 1997·Granted Aug 8, 2000·75 cites·21 claims
- 1996US4942780AHST(hydrostatic transmission) housing axle driving apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 1989·Granted Jul 24, 1990·83 cites·2 claims
- 2095US7448209B2Axle driving apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 2007·Granted Nov 11, 2008·11 cites·28 claims
- 2195US7316287B2Hydraulic pump unit, hydraulic pump set, and working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2005·Granted Jan 8, 2008·31 cites·14 claims
- 2295US6508059B1Hydrostatic transmissionKANZAKI KOKYUKOKI MFG CO LTD·Filed 2000·Granted Jan 21, 2003·42 cites·28 claims
- 2395US5588294AHydrostatic transmissionKANZAKI KOKYUKOKI MFG CO LTD·Filed 1995·Granted Dec 31, 1996·61 cites·9 claims
- 2495US4886142AHydraulic four-wheel drive systemKANZAKI KOKYUKOKI MFG CO LTD·Filed 1988·Granted Dec 12, 1989·85 cites·6 claims
- 2594US7788919B2Pump unitKANZAKI KOKYUKOKI MFG CO LTD·Filed 2008·Granted Sep 7, 2010·13 cites·4 claims
- 2694US6845837B2Hydraulic transaxle apparatus for a four-wheel driving vehicle and four-wheel driving vehicle using the apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 2002·Granted Jan 25, 2005·57 cites·12 claims
- 2794US6705080B2Axle driving apparatusTUFF TORQ CORP·Filed 2003·Granted Mar 16, 2004·26 cites·5 claims
- 2893US7028472B2Pump unitOHASHI RYOTA·Filed 2004·Granted Apr 18, 2006·27 cites·13 claims
- 2993US6983815B2Axle driving unit including a free-standing center sectionABEND ROBERT·Filed 2004·Granted Jan 10, 2006·26 cites·2 claims
- 3093US6772591B2Pump unitFiled 2002·Granted Aug 10, 2004·27 cites·6 claims
- 3193US6397966B1Vehicle improved in steeringKANZAKI KOKYUKOKI MFG CO LTD·Filed 2000·Granted Jun 4, 2002·49 cites·5 claims
- 3293US6260339B1Axle driving unit for a lawn tractorKANZAKI KOKYUKOKI MFG CO LTD·Filed 1999·Granted Jul 17, 2001·41 cites·16 claims
- 3392US7431123B2Vehicle improved in steeringKANZAKI KOKYUKOKI MFG CO LTD·Filed 2005·Granted Oct 7, 2008·23 cites·9 claims
- 3492US7418819B2Pump unitKANZAKI KOKYUKOKI MFG CO LTD·Filed 2006·Granted Sep 2, 2008·8 cites·1 claims
- 3592US6390227B1Axle driving unit for a lawn tractorKANZAKI KOKYUKOKI MFG CO LTD·Filed 1995·Granted May 21, 2002·84 cites·14 claims
- 3692US6216560B1Axle driving apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 1999·Granted Apr 17, 2001·44 cites·1 claims
- 3792US5163293AAxle driving apparatus with variable depth crescent oil passagesKANZAKI KOKYUKOKI MFG CO LTD·Filed 1991·Granted Nov 17, 1992·89 cites·3 claims
- 3891US7121093B2Axle driving apparatusABEND ROBERT·Filed 2004·Granted Oct 17, 2006·22 cites·3 claims
- 3990US7588104B2Hydraulic transaxle apparatus for a four-wheel-drive vehicle and four-wheel-drive vehicle using the apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 2008·Granted Sep 15, 2009·20 cites·5 claims
- 4090US7536858B2Axle driving apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 2007·Granted May 26, 2009·8 cites·29 claims
- 4190US7409829B2Pump unitKANZAKI KOKYUKOKI MFG CO LTD·Filed 2006·Granted Aug 12, 2008·10 cites·5 claims
- 4290US7363759B2Hydraulic transaxle apparatus for a four-wheel-drive vehicle and four-wheel-drive vehicle using the apparatusKANZAKI KOKYUKOKI MFG CO LTD·Filed 2005·Granted Apr 29, 2008·25 cites·10 claims
- 4390US7231765B2Pump unit and hydrostatic transmissionKAWAMURA MASAHISA·Filed 2005·Granted Jun 19, 2007·20 cites·12 claims
- 4490US6385971B1Axle driving apparatusTUFF TORQ CORP·Filed 2000·Granted May 14, 2002·53 cites·19 claims
- 4589US7896123B2Hydraulic drive vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2006·Granted Mar 1, 2011·17 cites·3 claims
- 4688US6902017B2Transaxle apparatus and four-wheel driving working vehicle using the apparatusFiled 2002·Granted Jun 7, 2005·33 cites·9 claims
- 4788US6401854B2Driving system for a working vehicleKANZAKI KOKYUKOKI MFG CO LTD·Filed 2001·Granted Jun 11, 2002·33 cites·7 claims
- 4888US5074195AFixed swash plate for an axial piston machineKANZAKI KOKYUKOKI MFG CO LTD·Filed 1990·Granted Dec 24, 1991·58 cites·3 claims
- 4987US8479503B2Axle driving apparatusABEND ROBERT·Filed 2011·Granted Jul 9, 2013·7 cites·9 claims
- 5086US7762371B2Pump unit and hydrostatic transmissionKANZAKI KOKYUKOKI MFG CO LTD·Filed 2008·Granted Jul 27, 2010·7 cites·3 claims
Showing the top 50 of 153 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →