Inventor · disambiguated record
Tomoyuki Hamada
Also filed as: HAMADA TOMOYUKI
37 granted patents·6 pending applications·620 citations·filing 1988–2021
98Inventor score
Files withHITACHI CONSTRUCTION MACH CO19HITACHI LTD18HITACHI CONSTRUCTION MACHINERY2FUJITSU LTD1HITACHI BUILDING SYS CO LTD1
Top patents by PatentIndex Score
43 records- 0192US6068911ASuper water-repellent coating material, and super water-repellent coating film using the sameHITACHI LTD·Filed 1997·Granted May 30, 2000·69 cites·25 claims
- 0290US10048692B2Vehicle travel systemHITACHI CONSTRUCTION MACH CO·Filed 2013·Granted Aug 14, 2018·14 cites·4 claims
- 0388US5483440ARemote control apparatus and control method thereofHITACHI LTD·Filed 1994·Granted Jan 9, 1996·90 cites·15 claims
- 0485US9483056B2Vehicle control systemHITACHI CONSTRUCTION MACH CO·Filed 2015·Granted Nov 1, 2016·7 cites·4 claims
- 0583US9804606B2Management control deviceHITACHI CONSTRUCTION MACH CO·Filed 2015·Granted Oct 31, 2017·6 cites·6 claims
- 0683US5862286AOptical memory device and optical circuit using optical memory deviceHITACHI LTD·Filed 1995·Granted Jan 19, 1999·52 cites·12 claims
- 0781US6576928B2Semiconductor device capacitor with high permittivity tantalum pentoxide/niobium pentoxide dielectricHITACHI LTD·Filed 2001·Granted Jun 10, 2003·20 cites·24 claims
- 0880US9672743B2Vehicle traffic control systemHITACHI CONSTRUCTION MACH CO·Filed 2013·Granted Jun 6, 2017·9 cites·4 claims
- 0979US7194415B2Support system for maintenance contract of elevatorHITACHI BUILDING SYS CO LTD·Filed 2001·Granted Mar 20, 2007·19 cites·17 claims
- 1079US4987527APerspective display device for displaying and manipulating 2-D or 3-D cursor, 3-D object and associated mark positionHITACHI LTD·Filed 1988·Granted Jan 22, 1991·53 cites·8 claims
- 1176US9473885B2Fleet management server, onboard terminal equipment, and fleet management systemHITACHI CONSTRUCTION MACH CO·Filed 2015·Granted Oct 18, 2016·3 cites·8 claims
- 1274US10431083B2Onboard terminal device and traffic control systemHITACHI CONSTRUCTION MACH CO·Filed 2016·Granted Oct 1, 2019·3 cites·7 claims
- 1374US10089873B2Vehicle travel route control system and fleet management serverHITACHI CONSTRUCTION MACH CO·Filed 2014·Granted Oct 2, 2018·7 cites·8 claims
- 1473US10339806B2Traffic control server and systemHITACHI CONSTRUCTION MACH CO·Filed 2015·Granted Jul 2, 2019·3 cites·8 claims
- 1573US6867090B2Semiconductor device and method of manufacturing thereofHITACHI LTD·Filed 2003·Granted Mar 15, 2005·13 cites·10 claims
- 1670US10885786B2Management control device and on-board communication terminal deviceHITACHI CONSTRUCTION MACH CO·Filed 2017·Granted Jan 5, 2021·2 cites·7 claims
- 1770US6598480B2Vibration testing systemHITACHI LTD·Filed 2001·Granted Jul 29, 2003·14 cites·18 claims
- 1870US5647009AComputer aided work support system and methodHITACHI LTD·Filed 1993·Granted Jul 8, 1997·24 cites·15 claims
- 1969US5820964AMagnetic disk, and magnetic disk apparatusHITACHI LTD·Filed 1995·Granted Oct 13, 1998·22 cites·35 claims
- 2065US9898011B2Driving assistance system and program for driving according to operations managementHITACHI CONSTRUCTION MACH CO·Filed 2014·Granted Feb 20, 2018·3 cites·10 claims
- 2162US10244456B2Wireless communication system, control server, and base-station switching operation control methodHITACHI CONSTRUCTION MACH CO·Filed 2016·Granted Mar 26, 2019·1 cites·9 claims
- 2262US6740901B2Production of semiconductor integrated circuitRENESAS TECH CORP·Filed 2002·Granted May 25, 2004·8 cites·10 claims
- 2362US5969969AVehicle driving support system which is responsive to environmental conditionsHITACHI LTD·Filed 1997·Granted Oct 19, 1999·86 cites·24 claims
- 2459US6509246B2Production of semiconductor integrated circuitHITACHI LTD·Filed 2001·Granted Jan 21, 2003·7 cites·22 claims
- 2558US10446036B2Traffic control system, traffic control device, and on-board terminal deviceHITACHI CONSTRUCTION MACH CO·Filed 2016·Granted Oct 15, 2019·1 cites·10 claims
- 2656US5672135AController for planetary differential type reduction gear deviceTEIJIN SEIKI CO LTD·Filed 1995·Granted Sep 30, 1997·20 cites·8 claims
- 2753US5122971AMethod and apparatus for constructing structuresHITACHI LTD·Filed 1990·Granted Jun 16, 1992·12 cites·6 claims
- 2852US12346126B2Vehicle management systemHITACHI CONSTRUCTION MACH CO·Filed 2021·Granted Jul 1, 2025·0 cites·7 claims
- 2952US12292739B2Autonomous travel systemHITACHI CONSTRUCTION MACH CO·Filed 2021·Granted May 6, 2025·0 cites·15 claims
- 3051US5436843ASystems and methods for recycling resources and circulating productsHITACHI LTD·Filed 1994·Granted Jul 25, 1995·16 cites·16 claims
- 3151US2018113451A1Work vehicle control systemHITACHI CONSTRUCTION MACH CO·Filed 2017·Application pending·0 cites
- 3248US2016202698A1Work vehicle control systemHITACHI CONSTRUCTION MACHINERY·Filed 2014·Application pending·0 cites
- 3347US9829893B2Operation management system for dump trucksHITACHI CONSTRUCTION MACH CO·Filed 2014·Granted Nov 28, 2017·0 cites·8 claims
- 3447US6124964AOrganic/inorganic composite superlattice type optical modulatorHITACHI LTD·Filed 1998·Granted Sep 26, 2000·14 cites·6 claims
- 3547US2015112537A1Navigation system for autonomous dump trucksHITACHI CONSTRUCTION MACHINERY·Filed 2014·Application pending·0 cites
- 3644US2005111701A1Monitoring systemHITACHI LTD·Filed 2004·Application pending·0 cites
- 3741US11789450B2Vehicle control systemHITACHI CONSTRUCTION MACH CO·Filed 2020·Granted Oct 17, 2023·0 cites·9 claims
- 3841US2015287853A1Method for producing semiconductor film, solar cell, and chalcopyrite compoundHITACHI LTD·Filed 2012·Application pending·0 cites
- 3940US5101411AOrganic non-linear optical deviceHITACHI LTD·Filed 1990·Granted Mar 31, 1992·11 cites·15 claims
- 4037US2018053406A1Logging system for a mining machine, an on-board terminal device, and a logging method for a mining machineHITACHI CONSTRUCTION MACH CO·Filed 2015·Application pending·0 cites
- 4135US10140871B2Wireless system and operation management serverHITACHI CONSTRUCTION MACH CO·Filed 2015·Granted Nov 27, 2018·0 cites·12 claims
- 4234US5193150AData transfer method, data transfer apparatus and information processing systemHITACHI LTD·Filed 1989·Granted Mar 9, 1993·6 cites·3 claims
- 4327US5936944ANetwork systemFUJITSU LTD·Filed 1998·Granted Aug 10, 1999·5 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →