Kidoh Technical Ins, Co., Ltd.

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Kobe, JP

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Patents Grantslast 30 patents

Information Patent Grant
Propulsion process of buried pipe
- Patent number 5,169,264
- Issue date Dec 8, 1992
- Kidoh Technical Ins. Co., Ltd.
- Koichi Kimura
- E21 - EARTH DRILLING MINING
Information Patent Grant
Measuring method of fluctuations of ground and its apparatus
- Patent number 5,040,421
- Issue date Aug 20, 1991
- Kidoh Construction Co., Ltd.
- Koichi Kimura
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for laying pipes in the ground with advance of...
- Patent number 4,936,709
- Issue date Jun 26, 1990
- Kidoh Technical Ins, Co., Ltd.
- Koichi Kimura
- E21 - EARTH DRILLING MINING