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Yasuhiro Shigegaki
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Aichi, JP
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last 30 patents
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Patent Grant
Method of producing porous silicon nitride ceramics having high str...
Patent number
5,968,426
Issue date
Oct 19, 1999
Japan as represented by Director General of Agency of Industrial Science and...
Kiyoshi Hirao
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Porous silicon nitride with rodlike grains oriented
Patent number
5,935,888
Issue date
Aug 10, 1999
Japan as represented by Director General of Agency of Industrial Science and...
Motohiro Toriyama
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Silicon nitride ceramics having a high reliability and a method for...
Patent number
5,866,245
Issue date
Feb 2, 1999
Japan as represented by Director General of Agency of Industrial Science and...
Motohiro Toriyama
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES