Inventor · disambiguated record
Mitsuo Sonoda
Also filed as: SONODA MITSUO
10 granted patents·161 citations·filing 1988–2012
89Inventor score
Files withHITACHI CONSTRUCTION MACHINERY4FUJISHIMA KAZUO2HITACHI CONSTRUCTION MACH CO1ISHIHARA SHINJI1UDAGAWA TSUTOMU1
Top patents by PatentIndex Score
10 records- 0190US8659177B2Motive power regeneration system for working machineFUJISHIMA KAZUO·Filed 2012·Granted Feb 25, 2014·16 cites·5 claims
- 0288US5203168AHydraulic driving circuit with motor displacement limitation controlHITACHI CONSTRUCTION MACHINERY·Filed 1991·Granted Apr 20, 1993·81 cites·15 claims
- 0377US9399856B2Hydraulic working machineFUJISHIMA KAZUO·Filed 2012·Granted Jul 26, 2016·7 cites·9 claims
- 0473US9671763B2Device for controlling construction machineryHITACHI CONSTRUCTION MACH CO·Filed 2012·Granted Jun 6, 2017·3 cites·7 claims
- 0561US9065361B2Hybrid construction machineISHIHARA SHINJI·Filed 2011·Granted Jun 23, 2015·3 cites·6 claims
- 0651US4846046AHydraulic drive circuit systemHITACHI CONSTRUCTION MACHINERY·Filed 1988·Granted Jul 11, 1989·15 cites·7 claims
- 0749US9103093B2Rotation control device of working machineUDAGAWA TSUTOMU·Filed 2012·Granted Aug 11, 2015·1 cites·1 claims
- 0841US5003776AHydraulic drive systemHITACHI CONSTRUCTION MACHINERY·Filed 1989·Granted Apr 2, 1991·11 cites·14 claims
- 0939US6079131AOperation control device for three-joint type excavatorHITACHI CONSTRUCTION MACHINERY·Filed 1998·Granted Jun 27, 2000·12 cites·7 claims
- 1037US6101437AOperation control device for three-joint excavatorFiled 1997·Granted Aug 8, 2000·12 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →