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Tsukawa Takahashi
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Himeji, JP
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last 30 patents
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Patent Grant
Zirconia sol, method for production thereof, porous ceramic-produci...
Patent number
5,275,759
Issue date
Jan 4, 1994
Nippon Shokubai Kagaku Kogyo Co., Ltd.
Shigemi Osaka
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES