Mitsutaka Hayakawa

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Kamakura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of preparing mortar or concrete
- Patent number 4,715,719
- Issue date Dec 29, 1987
- Yasuro Ito and Taisei Corporation
- Yasuro Ito
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method of preparing mortar or concrete
- Patent number 4,686,852
- Issue date Aug 18, 1987
- Ito; Yasuro
- Yasuro Ito
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method of preparing kneaded compositions
- Patent number 4,431,310
- Issue date Feb 14, 1984
- Ito; Yasuro
- Yasuro Ito
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method and apparatus for weighing aggregates
- Patent number 4,176,965
- Issue date Dec 4, 1979
- Yasuro Ito
- Yasuro Ito
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method and device for measuring the characteristics of plastic flui...
- Patent number 4,143,541
- Issue date Mar 13, 1979
- Ito; Yasuro
- Yasuro Ito
- G01 - MEASURING TESTING