Inventor · disambiguated record
Go Fujisawa
Also filed as: FUJISAWA GO
25 granted patents·6 pending applications·452 citations·filing 2001–2023
96Inventor score
Top patents by PatentIndex Score
31 records- 0196US7336356B2Method and apparatus for downhole spectral analysis of fluidsSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Feb 26, 2008·41 cites·21 claims
- 0293US7500388B2Method and apparatus for in-situ side-wall core sample analysisSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Mar 10, 2009·53 cites·22 claims
- 0393US7305306B2System and methods of deriving fluid properties of downhole fluids and uncertainty thereofSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Dec 4, 2007·52 cites·21 claims
- 0493US7081615B2Methods and apparatus for the downhole characterization of formation fluidsSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Jul 25, 2006·57 cites·8 claims
- 0585US10539500B2Active surface cleaning for a sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2015·Granted Jan 21, 2020·3 cites·17 claims
- 0685US8904859B2Detecting gas compounds for downhole fluid analysisLAWRENCE JIMMY·Filed 2012·Granted Dec 9, 2014·6 cites·18 claims
- 0785US6956204B2Determining fluid properties from fluid analyzerSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Oct 18, 2005·74 cites·30 claims
- 0881US10865638B2Mid-infrared sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2019·Granted Dec 15, 2020·1 cites·17 claims
- 0978US7095012B2Methods and apparatus for determining chemical composition of reservoir fluidsSCHLUMBERGER TECHNOLOGY CORP·Filed 2001·Granted Aug 22, 2006·61 cites·26 claims
- 1075US8032303B2Methods and apparatus to determine a concentration of nitrogen in a downhole fluidSCHLUMBERGER TECHNOLOGY CORP·Filed 2008·Granted Oct 4, 2011·6 cites·22 claims
- 1175US7458258B2Methods and apparatus for oil composition determinationSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Dec 2, 2008·4 cites·14 claims
- 1274US10487646B2Mid-infrared sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2015·Granted Nov 26, 2019·2 cites·22 claims
- 1374US8813554B2Methods and apparatus to estimate fluid component volumesFUJISAWA GO·Filed 2011·Granted Aug 26, 2014·7 cites·30 claims
- 1473US10921482B2Mid-infrared carbon dioxide sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2015·Granted Feb 16, 2021·1 cites·18 claims
- 1567US11221431B2Mid-infrared carbon dioxide sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2021·Granted Jan 11, 2022·0 cites·20 claims
- 1663US7075063B2Determining phase transition pressure of downhole retrograde condensateSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Jul 11, 2006·22 cites·34 claims
- 1762US7002142B2Determining dew precipitation and onset pressure in oilfield retrograde condensateSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Feb 21, 2006·27 cites·15 claims
- 1860US8909478B2Method for calculating the ratio of relative permeabilities of formation fluids and wettability of a formation downhole, and a formation testing tool to implement the sameIKEDA MAKI·Filed 2010·Granted Dec 9, 2014·3 cites·5 claims
- 1959US2025067668A1Apparatus and method for measuring a sampleSCHLUMBERGER TECHNOLOGY CORP·Filed 2023·Application pending·0 cites
- 2057US8393207B2Methods and apparatus to use multiple sensors to measure downhole fluid propertiesFUJISAWA GO·Filed 2009·Granted Mar 12, 2013·6 cites·12 claims
- 2157US7028773B2Assessing downhole WBM-contaminated connate waterSCHLUMBERGER TECHNOLOGY COPORA·Filed 2002·Granted Apr 18, 2006·22 cites·11 claims
- 2252US2006226699A1Methods and apparatus for the downhole characterization of formation fluidsSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Application pending·0 cites
- 2351US2010124313A1Methods and apparatus to perform downhole x-ray fluorescenceSCHLUMBERGER TECHNOLOGY CORP·Filed 2008·Application pending·0 cites
- 2450US8307698B2Vibrating wire viscometersMATSUMOTO NORIYUKI·Filed 2009·Granted Nov 13, 2012·0 cites·20 claims
- 2545US8322196B2Vibrating wire viscometersMADHAVAN RAGHU·Filed 2009·Granted Dec 4, 2012·3 cites·18 claims
- 2644US7849736B2Method for calculating the ratio of relative permeabilities of formation fluids and wettability of a formation downhole, and a formation testing tool to implement the sameSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Dec 14, 2010·1 cites·11 claims
- 2743US10345480B2Mid-infrared acid sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2015·Granted Jul 9, 2019·0 cites·20 claims
- 2839US2010050761A1Detecting gas compounds for downhole fluid analysisSCHLUMBERGERTECHNOLOGY CORP·Filed 2008·Application pending·0 cites
- 2936US2017242151A1Mid-infrared hydrate inhibitor sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2015·Application pending·0 cites
- 3035US8555696B2Methods of calibrating a fluid analyzer for use in a wellboreDONG CHENGLI·Filed 2008·Granted Oct 15, 2013·0 cites·32 claims
- 3135US2017242150A1Mid-infrared cement sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →