Inventor
IGARASHI JUEI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “IGARASHI JUEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
7 patentsUS7413011B1Aug 19, 2008
Optical fiber system and method for wellhole sensing of magnetic permeability using diffraction effect of faraday rotator
SCHLUMBERGER TECHNOLOGY CORP83 citations95
US7720323B2May 18, 2010
High-temperature downhole devices
SCHLUMBERGER TECHNOLOGY CORP48 citations92
US6170601B1Jan 9, 2001
Borehole seismic tool
SCHLUMBERGER TECHNOLOGY CORP23 citations92
US7801704B2Sep 21, 2010
Method and system for azimuth measurements using gyro sensors
SCHLUMBERGER TECHNOLOGY CORP10 citations84
US7712223B2May 11, 2010
Apparatus for azimuth measurements using gyro sensors
SCHLUMBERGER TECHNOLOGY CORP11 citations82
US10982530B2Apr 20, 2021
Apparatus, system and method of a magnetically shielded wellbore gyroscope
SCHLUMBERGER TECHNOLOGY CORP3 citations72
US10458226B2Oct 29, 2019
Shock and vibration damper system and methodology
SCHLUMBERGER TECHNOLOGY CORP3 citations68
SATO SHIGERU
3 patentsUS8136406B2Mar 20, 2012
Pressure transducer with piezoelectric crystal for harsh environment use
SATO SHIGERU7 citations83
US9435649B2Sep 6, 2016
Method and system for azimuth measurements using a gyroscope unit
SATO SHIGERU3 citations72
US8200436B2Jun 12, 2012
Method and apparatus for wellbore survey using inertial sensors
SATO SHIGERU4 citations62