Inventor · disambiguated record
Mitsuhisa Tougasaki
Also filed as: TOUGASAKI MITSUHISA
10 granted patents·163 citations·filing 1999–2013
90Inventor score
Top patents by PatentIndex Score
10 records- 0186US9494171B2Multiple valve deviceHITACHI CONSTRUCTION MACHINERY·Filed 2013·Granted Nov 15, 2016·7 cites·4 claims
- 0286US7265304B2Joystick for electro-hydraulic control systemHITACHI CONSTRUCTION MACHINERY·Filed 2005·Granted Sep 4, 2007·24 cites·9 claims
- 0386US6408876B1Control valveHITACHI CONSTRUCTION MACHINERY·Filed 1999·Granted Jun 25, 2002·35 cites·6 claims
- 0482US6438952B1Hydraulic circuit deviceHITACHI CONSTRUCTION MACHINERY·Filed 2000·Granted Aug 27, 2002·22 cites·6 claims
- 0577US6422009B1Pump capacity control device and valve deviceHITACHI CONSTRUCTION MACHINERY·Filed 2000·Granted Jul 23, 2002·18 cites·8 claims
- 0677US6378302B1Hydraulic circuit systemHITACHI CONSTRUCTION MACHINERY·Filed 2000·Granted Apr 30, 2002·17 cites·8 claims
- 0769US8393348B2Directional control valve device and directional control valve device block having directional control valve devicesTOUGASAKI MITSUHISA·Filed 2008·Granted Mar 12, 2013·7 cites·3 claims
- 0863US6327959B1Directional control valve deviceHITACHI CONSTRUCTION MACHINERY·Filed 1999·Granted Dec 11, 2001·23 cites·3 claims
- 0956US6453585B1Hydraulic drive device of working machineHITACHI CONSTRUCTION MACHINERY·Filed 2001·Granted Sep 24, 2002·9 cites·5 claims
- 1044US6681794B2Unloading valveHITACHI CONSTRUCTION MACHINERY·Filed 2001·Granted Jan 27, 2004·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →