Kiyoshi Koibuchi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for fabricating fiber-reinforced slag gypsum cement-based, l...
- Patent number 5,366,549
- Issue date Nov 22, 1994
- Kyowa Giken Co., Ltd.
- Shokichi Imaizumi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Hydraulic hardening material and method of manufacturing the same
- Patent number 4,981,519
- Issue date Jan 1, 1991
- Nippon Kokan Kabushiki Kaisha
- Kazuo Fukaya
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES