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Kazuya Yabuta
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Chiba, JP
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last 30 patents
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Patent Grant
High strength high oxidation-resistance sialon sintered body
Patent number
4,935,389
Issue date
Jun 19, 1990
NKK Corporation
Seiki Umebayashi
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Method for molding of powders
Patent number
4,927,600
Issue date
May 22, 1990
Nippon Kokan Kabushiki Kaisha
Tsuneo Miyashita
B28 - WORKING CEMENT, CLAY, OR STONE