-
-
-
-
-
-
-
-
-
-
-
-
Glass ceramics
-
Patent number 4,943,541
-
Issue date Jul 24, 1990
-
Kyushu Refractories Co., Ltd.
-
Akira Watanabe
-
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
-
-
-
-
Silicon nitride composite refractories
-
Patent number 4,540,674
-
Issue date Sep 10, 1985
-
Kyushu Refractories Co., Ltd.
-
Akira Watanabe
-
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
-
Forsterite-carbon refractory
-
Patent number 4,497,901
-
Issue date Feb 5, 1985
-
Nippon Steel Corporation
-
Yuzo Ohtsuki
-
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
-
Carbon-bonded magnesia carbon bricks
-
Patent number 4,431,745
-
Issue date Feb 14, 1984
-
Kyushu Refractories Co., Ltd.
-
Akira Watanabe
-
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
-
Carbon-containing refractory
-
Patent number 4,306,030
-
Issue date Dec 15, 1981
-
Kyusyu Refractories Co., Ltd.
-
Akira Watanabe
-
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
-
-
-
Fire brick unit
-
Patent number 4,148,165
-
Issue date Apr 10, 1979
-
Kyushu Taikarenga Kabushiki Kaisha
-
Akira Watanabe
-
F27 - FURNACES KILNS OVENS RETORTS
-
Basic composite unburned brick
-
Patent number 4,130,438
-
Issue date Dec 19, 1978
-
Kyushu Taikarenga Kabushiki Kaisha
-
Akira Watanabe
-
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES