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Toshio Katahata
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Iruma, JP
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last 30 patents
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Patent Grant
Silicon nitride-based fibers and composite material reinforced with...
Patent number
5,151,390
Issue date
Sep 29, 1992
Toa Nenryo Kogyo Kabushiki Kaisha
Hiroyuki Aoki
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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Patent Grant
Boron-containing, silicon nitride-based ceramic shaped body
Patent number
5,128,286
Issue date
Jul 7, 1992
Tonen Corporation
Osamu Funayama
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Silicon nitride based ceramic fibers, process of preparing same and...
Patent number
5,032,551
Issue date
Jul 16, 1991
Toa Nenryo Kogyo Kabushiki Kaisha
Yuuji Tashiro
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING