Inventor · disambiguated record
Tadahiro Yamaguchi
Also filed as: AIZAWA KOKI · YAMAGUCHI TADAHIRO
21 granted patents·440 citations·filing 1978–2018
96Inventor score
Files withHITACHI LTD12PIONEER ELECTRONIC CORP4HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD3HITACHI CONSTRUCTION MACH CO2
Top patents by PatentIndex Score
21 records- 0193USD890200SDisplay screen with graphical user interface for a construction machineHITACHI CONSTRUCTION MACH CO·Filed 2018·Granted Jul 14, 2020·58 cites·1 claims
- 0290US5936679ATelevision receiver having multiple communication capabilitiesHITACHI LTD·Filed 1996·Granted Aug 10, 1999·155 cites·15 claims
- 0390US4972404AOptical discPIONEER ELECTRONIC CORP·Filed 1989·Granted Nov 20, 1990·42 cites·10 claims
- 0479US4535306APhase-locked loop detecting circuitPIONEER ELECTRONIC CORP·Filed 1983·Granted Aug 13, 1985·30 cites·8 claims
- 0575USD371347SComputerHITACHI LTD·Filed 1995·Granted Jul 2, 1996·19 cites·1 claims
- 0674USD463431SDisplay deviceHITACHI LTD·Filed 2001·Granted Sep 24, 2002·22 cites·1 claims
- 0772USD516557SMonitor for a computerHITACHI LTD·Filed 2004·Granted Mar 7, 2006·18 cites·1 claims
- 0869USD396234SOptical transmission equipmentHITACHI LTD·Filed 1996·Granted Jul 21, 1998·16 cites·1 claims
- 0967USD524810SComputerHITACHI LTD·Filed 2004·Granted Jul 11, 2006·14 cites·1 claims
- 1066USD545309SComputerHITACHI LTD·Filed 2005·Granted Jun 26, 2007·14 cites·1 claims
- 1160USD769286SDisplay screen or portion thereof with a graphical user interface for an ink jet printerHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2015·Granted Oct 18, 2016·9 cites·1 claims
- 1257USD540320SComputerHITACHI LTD·Filed 2005·Granted Apr 10, 2007·10 cites·1 claims
- 1355US4145664AAudio signal compression and expansion systemPIONEER ELECTRONIC CORP·Filed 1978·Granted Mar 20, 1979·8 cites·3 claims
- 1451USD517064SComputerHITACHI LTD·Filed 2004·Granted Mar 14, 2006·7 cites·1 claims
- 1548USD768168SDisplay screen or portion thereof with a graphical user interface for an ink jet printerHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2015·Granted Oct 4, 2016·5 cites·1 claims
- 1640USD541277SMonitor for a computerHITACHI LTD·Filed 2005·Granted Apr 24, 2007·4 cites·1 claims
- 1740USD522503SComputerHITACHI LTD·Filed 2005·Granted Jun 6, 2006·4 cites·1 claims
- 1836US4215316AAM stereo signal demodulation circuitPIONEER ELECTRONIC CORP·Filed 1978·Granted Jul 29, 1980·4 cites·15 claims
- 1932USD769285SDisplay screen or portion thereof with a graphical user interface for an ink jet printerHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2015·Granted Oct 18, 2016·1 cites·1 claims
- 2029USD892835SConstruction machine information display with graphical user interfaceHITACHI CONSTRUCTION MACH CO·Filed 2018·Granted Aug 11, 2020·0 cites·1 claims
- 2129USD383120SPortable computerHITACHI LTD·Filed 1996·Granted Sep 2, 1997·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →