Shitomi Katayama

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Kanagawaken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Downhole seismic exploration device and apparatus
- Patent number 5,044,460
- Issue date Sep 3, 1991
- Schlumberger Technology Corporation
- Masahiro Kamata
- G01 - MEASURING TESTING
Information Patent Grant
Downhole seismic exploration device and apparatus
- Patent number 4,953,136
- Issue date Aug 28, 1990
- Schlumberger Technology Corporation
- Masahiro Kamata
- G01 - MEASURING TESTING