Inventor · disambiguated record
Hitoshi Kagiwada
Also filed as: KAGIWADA HITOSHI
4 granted patents·110 citations·filing 1990–2000
79Inventor score
Files withHITACHI CONSTRUCTION MACHINERY4
Top patents by PatentIndex Score
4 records- 0193US5177964AHydraulic drive traveling systemHITACHI CONSTRUCTION MACHINERY·Filed 1990·Granted Jan 12, 1993·64 cites·21 claims
- 0275US6389809B1Volume control valve of variable displacement hydraulic rotating machineHITACHI CONSTRUCTION MACHINERY·Filed 2000·Granted May 21, 2002·18 cites·19 claims
- 0358US5197283AHydraulic-motor drive circuit system with anti-cavitation controlHITACHI CONSTRUCTION MACHINERY·Filed 1990·Granted Mar 30, 1993·19 cites·16 claims
- 0440US6119580ASwash plate type hydraulic rotating machine and method of manufacturing casing for sameHITACHI CONSTRUCTION MACHINERY·Filed 1997·Granted Sep 19, 2000·9 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →