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Noboru Shinoda
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Bizen, JP
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last 30 patents
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Patent Grant
Silicon nitride composite refractories
Patent number
4,540,674
Issue date
Sep 10, 1985
Kyushu Refractories Co., Ltd.
Akira Watanabe
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Carbonaceous bricks and the method for producing the same
Patent number
4,216,020
Issue date
Aug 5, 1980
Kyusyu Refractories Co., Ltd.
Akira Watanabe
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES