Shigeo Takamiya

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for constructing an enlarged tunnel and apparatus for formin...
- Patent number 4,618,298
- Issue date Oct 21, 1986
- Mitsui Kensetsu Kabushiki Kaisha
- Shigeo Takamiya
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield machine
- Patent number 4,558,906
- Issue date Dec 17, 1985
- Mitsui Kensetsu Kabushiki Kaisha
- Shigeo Takamiya
- E21 - EARTH DRILLING MINING