Inventor · disambiguated record
Juei Igarashi
Also filed as: IGARASHI JUEI
12 granted patents·210 citations·filing 1998–2017
91Inventor score
Top patents by PatentIndex Score
12 records- 0193US7413011B1Optical fiber system and method for wellhole sensing of magnetic permeability using diffraction effect of faraday rotatorSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Aug 19, 2008·83 cites·11 claims
- 0291US7720323B2High-temperature downhole devicesSCHLUMBERGER TECHNOLOGY CORP·Filed 2008·Granted May 18, 2010·48 cites·21 claims
- 0378US10982530B2Apparatus, system and method of a magnetically shielded wellbore gyroscopeSCHLUMBERGER TECHNOLOGY CORP·Filed 2016·Granted Apr 20, 2021·3 cites·20 claims
- 0476US10458226B2Shock and vibration damper system and methodologySCHLUMBERGER TECHNOLOGY CORP·Filed 2017·Granted Oct 29, 2019·3 cites·16 claims
- 0574US8061048B2Apparatus for azimuth measurements using gyro sensorsIMAMURA TSUNEHIKO·Filed 2010·Granted Nov 22, 2011·7 cites·13 claims
- 0669US7712223B2Apparatus for azimuth measurements using gyro sensorsSCHLUMBERGER TECHNOLOGY CORP·Filed 2008·Granted May 11, 2010·11 cites·40 claims
- 0768US8136406B2Pressure transducer with piezoelectric crystal for harsh environment useSATO SHIGERU·Filed 2009·Granted Mar 20, 2012·7 cites·13 claims
- 0868US8061047B2Active positioning of downhole devices using spherical motorsIGARASHI JUEI·Filed 2009·Granted Nov 22, 2011·8 cites·45 claims
- 0968US7801704B2Method and system for azimuth measurements using gyro sensorsSCHLUMBERGER TECHNOLOGY CORP·Filed 2008·Granted Sep 21, 2010·10 cites·59 claims
- 1066US9435649B2Method and system for azimuth measurements using a gyroscope unitSATO SHIGERU·Filed 2011·Granted Sep 6, 2016·3 cites·8 claims
- 1164US8200436B2Method and apparatus for wellbore survey using inertial sensorsSATO SHIGERU·Filed 2009·Granted Jun 12, 2012·4 cites·43 claims
- 1250US6170601B1Borehole seismic toolSCHLUMBERGER TECHNOLOGY CORP·Filed 1998·Granted Jan 9, 2001·23 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →