Inventor · disambiguated record
Koichi Yanagisawa
Also filed as: YANAGISAWA KOICHI
16 granted patents·2 pending applications·185 citations·filing 1989–2021
93Inventor score
Files withHIOKI ELECTRIC WORKS11DORYOKURO KAKUNENRYO3YANAGISAWA KOICHI2DENSO CORP1HITACHI INT ELECTRIC INC1
Top patents by PatentIndex Score
18 records- 0195US9201100B2Voltage detecting apparatus and line voltage detecting apparatusHIOKI ELECTRIC WORKS·Filed 2014·Granted Dec 1, 2015·21 cites·9 claims
- 0294US8803506B2Voltage detecting apparatus that detects voltage of an objectYANAGISAWA KOICHI·Filed 2012·Granted Aug 12, 2014·23 cites·6 claims
- 0392US7466145B2Voltage measuring apparatus and power measuring apparatusHIOKI ELECTRIC WORKS·Filed 2006·Granted Dec 16, 2008·30 cites·10 claims
- 0491US8222886B2Voltage detecting apparatus and line voltage detecting apparatus having a detection electrode disposed facing a detected objectYANAGISAWA KOICHI·Filed 2009·Granted Jul 17, 2012·24 cites·14 claims
- 0576US7834645B2Variable capacitance circuit, voltage measuring apparatus, and power measuring apparatusHIOKI ELECTRIC WORKS·Filed 2006·Granted Nov 16, 2010·9 cites·25 claims
- 0668US10841027B2Broadcast wave synchronization signal converting deviceHITACHI INT ELECTRIC INC·Filed 2017·Granted Nov 17, 2020·1 cites·6 claims
- 0756US5767400AHydraulic test system mounted with borehole television set for simultaneous observation in front and lateral directionsDORYOKURO KAKUNENRYO·Filed 1996·Granted Jun 16, 1998·38 cites·7 claims
- 0855US11522530B2Waveform shaping circuit, signal generation apparatus, and signal reading systemHIOKI ELECTRIC WORKS·Filed 2021·Granted Dec 6, 2022·0 cites·16 claims
- 0952US7148768B2Filter elementHIOKI ELECTRIC WORKS·Filed 2004·Granted Dec 12, 2006·4 cites·5 claims
- 1050US11349464B2Waveform shaping circuit, signal generation apparatus, and signal reading systemHIOKI ELECTRIC WORKS·Filed 2019·Granted May 31, 2022·0 cites·17 claims
- 1150US10767538B2Energy conversion deviceDENSO CORP·Filed 2019·Granted Sep 8, 2020·0 cites·6 claims
- 1248US7454725B2Apparatus and computer readable medium having program for analyzing distributed constant in a transmission lineHIOKI ELECTRIC WORKS·Filed 2004·Granted Nov 18, 2008·2 cites·18 claims
- 1347US2008191815A1Filter elementHIOKI ELECTRIC WORKS·Filed 2008·Application pending·0 cites
- 1444US10012677B2Voltage detecting apparatusHIOKI ELECTRIC WORKS·Filed 2015·Granted Jul 3, 2018·0 cites·16 claims
- 1543US5896926APacker type groundwater sampling system and water sampling methodDORYOKURO KAKUNENRYO·Filed 1996·Granted Apr 27, 1999·25 cites·8 claims
- 1637US7355493B2Filter elementHIOKI ELECTRIC WORKS·Filed 2006·Granted Apr 8, 2008·0 cites·20 claims
- 1736US2010283539A1Voltage detection deviceHIOKI ELECTRIC WORKS·Filed 2010·Application pending·0 cites
- 1834US4986120ALow-water-pressure controlled hydrologic test methodDORYOKURO KAKUNENRYO·Filed 1989·Granted Jan 22, 1991·8 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →