Inventor · disambiguated record
Takashi Yagyu
Also filed as: YAGYU TAKASHI
19 granted patents·2 pending applications·224 citations·filing 1982–2013
94Inventor score
Top patents by PatentIndex Score
21 records- 0191US6055851AApparatus for diagnosing failure of hydraulic pump for work machineHITACHI CONSTRUCTION MACHINERY·Filed 1997·Granted May 2, 2000·86 cites·10 claims
- 0276US8033614B2Transporter vehicleHITACHI CONSTRUCTION MACHINERY·Filed 2008·Granted Oct 11, 2011·11 cites·15 claims
- 0376US7841434B2Electric drive system for vehicle, electric control system for vehicle, electric drive method for vehicleHITACHI LTD·Filed 2009·Granted Nov 30, 2010·11 cites·2 claims
- 0476US7740323B2Hydraulic drive device for vertical pivoting movement of load carrying platformHITACHI CONSTRUCTION MACHINERY·Filed 2006·Granted Jun 22, 2010·8 cites·8 claims
- 0573US7175155B2Control valve apparatus and pressure circuitHITACHI CONSTRUCTION MACHINERY·Filed 2005·Granted Feb 13, 2007·7 cites·9 claims
- 0667US9174562B2Transport vehicleHITACHI CONSTRUCTION MACHINERY·Filed 2013·Granted Nov 3, 2015·6 cites·4 claims
- 0765US9242589B2Dump truck body hoisting state display deviceHITACHI CONSTRUCTION MACHINERY·Filed 2013·Granted Jan 26, 2016·4 cites·5 claims
- 0865US8376476B2Brake system in electric drive dump truckHITACHI CONSTRUCTION MACHINERY·Filed 2007·Granted Feb 19, 2013·6 cites·3 claims
- 0965US7315144B2AC drive apparatus, vehicle control apparatus, and power conversion method and vehicle control methodHITACHI LTD·Filed 2006·Granted Jan 1, 2008·9 cites·21 claims
- 1062US7863837B2Drive system for electrically driven dump truckHITACHI CONSTRUCTION MACHINERY·Filed 2007·Granted Jan 4, 2011·5 cites·8 claims
- 1155US8104842B2Transporter vehicleFUSHIKI MICHIO·Filed 2009·Granted Jan 31, 2012·6 cites·6 claims
- 1251US8265849B2Drive system for electrically driven dump truckTANAKA YASUO·Filed 2007·Granted Sep 11, 2012·1 cites·6 claims
- 1351US8249765B2Drive system for electrically driven dump truckTANAKA YASUO·Filed 2007·Granted Aug 21, 2012·3 cites·10 claims
- 1445US4534268AHydraulic fluid circuit of hydraulic shovelHITACHI CONSTRUCTION MACHINERY·Filed 1982·Granted Aug 13, 1985·10 cites·3 claims
- 1545US4504185AHydraulic circuit of hydraulic power shovelHITACHI CONSTRUCTION MACHINERY·Filed 1982·Granted Mar 12, 1985·8 cites·9 claims
- 1643US5995886ASystem for estimating residual service time of work vehicleHITACHI CONSTRUCTION MACHINERY·Filed 1997·Granted Nov 30, 1999·26 cites·3 claims
- 1743US2009132116A1Drive system for electrically driven dump truckTANAKA YASUO·Filed 2007·Application pending·0 cites
- 1839US2006086547A1Electric drive system for vehicle, electric control system for vehicle, electric drive method for vehicleSHIMADA KEIZO·Filed 2005·Application pending·0 cites
- 1937US7797935B2Hydraulic drive device for dump truckHITACHI CONSTRUCTION MACHINERY·Filed 2006·Granted Sep 21, 2010·0 cites·4 claims
- 2037US5081905AHydraulic pilot operation circuit and valve for quickly discharging oilHITACHI CONSTRUCTION MACHINERY·Filed 1988·Granted Jan 21, 1992·10 cites·8 claims
- 2135US6122598AMeasurement and display of load of excavating blasted groundHITACHI CONSTRUCTION MACHINERY·Filed 1997·Granted Sep 19, 2000·7 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →