Joji Nakamura

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Kamakura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of driving hollow piles into the ground
- Patent number 4,637,758
- Issue date Jan 20, 1987
- Kabushiki Kaisha Komatsu Seisakusho
- Hiroaki Tamaki
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method and apparatus for driving hollow piles into the ground
- Patent number 4,494,613
- Issue date Jan 22, 1985
- Kabushiki Kaisha Komatsu Seisakusho
- Hiroaki Tamaki
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method and apparatus for fracturing rock beds
- Patent number 4,363,518
- Issue date Dec 14, 1982
- Kabushiki Kaisha Komatsu Seisakusho
- Joji Nakamura
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for excavation
- Patent number 4,193,634
- Issue date Mar 18, 1980
- Kabushiki Kaisha Komatsu Seisakusho
- Joji Nakamura
- E21 - EARTH DRILLING MINING