Yutaka Owa

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming a water-impermeable layer in a soil
- Patent number 4,690,589
- Issue date Sep 1, 1987
- Lion Corporation
- Yutaka Owa
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method for forming a moisture barrier in a soil containing soluble...
- Patent number 4,637,759
- Issue date Jan 20, 1987
- Lion Corporation
- Yutaka Owa
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING