Seiho Kitagawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Meshwork reinforced and pre-stressed concrete member, method and ap...
- Patent number 5,025,605
- Issue date Jun 25, 1991
- Shimizu Construction Co., Ltd.
- Kenzo Sekijima
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Structural filler filled steel tube column
- Patent number 5,012,622
- Issue date May 7, 1991
- Shimizu Construction Co., Ltd.
- Takanori Sato
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING