Ichiro Shirasaka

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Sugar Land, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Borehole survey method utilizing continuous measurements
- Patent number 6,633,816
- Issue date Oct 14, 2003
- Schlumberger Technology Corporation
- Ichiro Shirasaka
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for borehole surveying
- Patent number 6,453,239
- Issue date Sep 17, 2002
- Schlumberger Technology Corporation
- Ichiro Shirasaka
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for calculating gyroscopic wellbore surveys including correc...
- Patent number 6,381,858
- Issue date May 7, 2002
- Schlumberger Technology Corporation
- Ichiro Shirasaka
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Borehole survey method utilizing continuous measurements
- Publication number 20020060570
- Publication date May 23, 2002
- Ichiro Shirasaka
- E21 - EARTH DRILLING MINING