Inventor · disambiguated record
Yusaku Nozawa
Also filed as: NOZAWA YUSAKU
19 granted patents·375 citations·filing 1988–2001
95Inventor score
Files withHITACHI CONSTRUCTION MACHINERY19
Top patents by PatentIndex Score
19 records- 0191US5083430AHydraulic driving apparatusHITACHI CONSTRUCTION MACHINERY·Filed 1989·Granted Jan 28, 1992·43 cites·21 claims
- 0286US6408876B1Control valveHITACHI CONSTRUCTION MACHINERY·Filed 1999·Granted Jun 25, 2002·35 cites·6 claims
- 0382US6438952B1Hydraulic circuit deviceHITACHI CONSTRUCTION MACHINERY·Filed 2000·Granted Aug 27, 2002·22 cites·6 claims
- 0478US5921165AHydraulic control systemHITACHI CONSTRUCTION MACHINERY·Filed 1997·Granted Jul 13, 1999·29 cites·8 claims
- 0578US5433076AHydraulic control valve apparatus and hydraulic drive systemHITACHI CONSTRUCTION MACHINERY·Filed 1993·Granted Jul 18, 1995·27 cites·39 claims
- 0677US6422009B1Pump capacity control device and valve deviceHITACHI CONSTRUCTION MACHINERY·Filed 2000·Granted Jul 23, 2002·18 cites·8 claims
- 0777US6378302B1Hydraulic circuit systemHITACHI CONSTRUCTION MACHINERY·Filed 2000·Granted Apr 30, 2002·17 cites·8 claims
- 0871US5333449APressure compensating valve assemblyHITACHI CONSTRUCTION MACHINERY·Filed 1991·Granted Aug 2, 1994·36 cites·4 claims
- 0970US6244048B1Hydraulique drive deviceHITACHI CONSTRUCTION MACHINERY·Filed 1997·Granted Jun 12, 2001·37 cites·6 claims
- 1064US5485724AHydraulic drive systemHITACHI CONSTRUCTION MACHINERY·Filed 1993·Granted Jan 23, 1996·19 cites·5 claims
- 1164US4945723AFlow control valves for hydraulic motor systemHITACHI CONSTRUCTION MACHINERY·Filed 1988·Granted Aug 7, 1990·23 cites·19 claims
- 1263US6327959B1Directional control valve deviceHITACHI CONSTRUCTION MACHINERY·Filed 1999·Granted Dec 11, 2001·23 cites·3 claims
- 1356US6453585B1Hydraulic drive device of working machineHITACHI CONSTRUCTION MACHINERY·Filed 2001·Granted Sep 24, 2002·9 cites·5 claims
- 1455US5957159ADirectional control valve with flow distribution valvesHITACHI CONSTRUCTION MACHINERY·Filed 1998·Granted Sep 28, 1999·12 cites·10 claims
- 1549US4938022AFlow control system for hydraulic motorsHITACHI CONSTRUCTION MACHINERY·Filed 1988·Granted Jul 3, 1990·12 cites·22 claims
- 1645US6135149APressure compensating valvesHITACHI CONSTRUCTION MACHINERY·Filed 1999·Granted Oct 24, 2000·8 cites·3 claims
- 1744US6681794B2Unloading valveHITACHI CONSTRUCTION MACHINERY·Filed 2001·Granted Jan 27, 2004·1 cites·5 claims
- 1828US5140815AValve apparatusHITACHI CONSTRUCTION MACHINERY·Filed 1989·Granted Aug 25, 1992·0 cites·11 claims
- 1928US4942900APressure control valveHITACHI CONSTRUCTION MACHINERY·Filed 1989·Granted Jul 24, 1990·4 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →