Sakae Sano

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Boring-injection device, method for improving ground by means of th...
- Patent number 4,545,702
- Issue date Oct 8, 1985
- Toa Grout Kogyo Co., Ltd.
- Sakae Sano
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for injecting grouting agent and apparatus for conducting th...
- Patent number 4,514,112
- Issue date Apr 30, 1985
- Toa Grout Kogyo Co., Ltd.
- Sakae Sano
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Stabilizer for excavated surface
- Patent number 4,403,891
- Issue date Sep 13, 1983
- Toa Grout Kogyo Co., Ltd.
- Shinkichi Ohoka
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING