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Masataro Okumiya
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Yokohama, JP
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last 30 patents
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Patent Grant
Low thermal expansion cordierite aggregate and its bonded body
Patent number
5,607,885
Issue date
Mar 4, 1997
AG Technology Co., Ltd.
Tomoko Ichii
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Low thermal expansion cordierite aggregate and its bonded body
Patent number
5,552,349
Issue date
Sep 3, 1996
AG Technology Co., Ltd.
Tomoko Ichii
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES