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Yoshiharu Watanabe
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Oumi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Ultra high strength fiber-reinforced cement composition, ultra high...
Patent number
7,670,425
Issue date
Mar 2, 2010
Denki Kagaku Kogyo Kabushiki Kaisha
Yoshiharu Watanabe
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Process for producing a concrete product
Patent number
6,126,875
Issue date
Oct 3, 2000
Denki Kagaku Kogyo Kabushiki Kaisha
Yoshiharu Watanabe
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Concrete composition for roller compacted placing method
Patent number
4,892,586
Issue date
Jan 9, 1990
Denki Kagaku Kogyo Kabushiki Kaisha
Yoshiharu Watanabe
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Cement additive containing superplasticizer and bentonite
Patent number
4,861,378
Issue date
Aug 29, 1989
Denki Kagaku Kogyo Kabushiki Kaisha
Yoshiharu Watanabe
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Concrete composition for making concrete moldings and method for ma...
Patent number
4,230,499
Issue date
Oct 28, 1980
Denki Kagaku Kogyo Kabushiki Kaisha
Koji Nakagawa
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Concrete composition for making concrete moldings and method for ma...
Patent number
4,187,118
Issue date
Feb 5, 1980
Denki Kagaku Kogyo Kabushiki Kaisha
Koji Nakagawa
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
Cement Admixture and Cement Composition Using Thereof
Publication number
20090298973
Publication date
Dec 3, 2009
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
Yoshiharu Watanabe
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES