Inventor · disambiguated record
Yukihiko Sugiyama
Also filed as: SUGIYAMA YUKIHIKO
5 granted patents·1 pending application·146 citations·filing 1997–2013
82Inventor score
Files withHITACHI CONSTRUCTION MACHINERY6
Top patents by PatentIndex Score
6 records- 0191US6055851AApparatus for diagnosing failure of hydraulic pump for work machineHITACHI CONSTRUCTION MACHINERY·Filed 1997·Granted May 2, 2000·86 cites·10 claims
- 0278US7500360B2Hydraulic driving system of construction machineryHITACHI CONSTRUCTION MACHINERY·Filed 2003·Granted Mar 10, 2009·20 cites·26 claims
- 0373US7175155B2Control valve apparatus and pressure circuitHITACHI CONSTRUCTION MACHINERY·Filed 2005·Granted Feb 13, 2007·7 cites·9 claims
- 0443US5995886ASystem for estimating residual service time of work vehicleHITACHI CONSTRUCTION MACHINERY·Filed 1997·Granted Nov 30, 1999·26 cites·3 claims
- 0535US6122598AMeasurement and display of load of excavating blasted groundHITACHI CONSTRUCTION MACHINERY·Filed 1997·Granted Sep 19, 2000·7 cites·13 claims
- 0634US2015158536A1Crawler beltHITACHI CONSTRUCTION MACHINERY·Filed 2013·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →