Ozawa Concrete Industry Co., Ltd.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Concrete structural member and method for manufacture thereof
- Patent number 4,774,045
- Issue date Sep 27, 1988
- Ozawa Concrete Industry Co.
- Shizuko Kushida
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Process for producing a high integrity container
- Patent number 4,687,614
- Issue date Aug 18, 1987
- Chichibu Cement Co., Ltd.
- Osamu Suzuki
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Multiplex design container having a three-layered wall structure an...
- Patent number 4,594,513
- Issue date Jun 10, 1986
- Chichibu Cement Co., Ltd.
- Osamu Suzuki
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Method for manufacture of polymer-impregnated hollow concrete product
- Patent number 4,314,957
- Issue date Feb 9, 1982
- Ozawa Concrete Industry Co., Ltd.
- Seiichi Ozawa
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for manufacture of concrete products
- Patent number 4,224,274
- Issue date Sep 23, 1980
- Ozawa Concrete Industry Co., Ltd.
- Seiichi Ozawa
- B28 - WORKING CEMENT, CLAY, OR STONE

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