Yukitoshi Kubota

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Patents Grantslast 30 patents

Information Patent Grant
Taphole mix for molten metal taphole
- Patent number 5,962,357
- Issue date Oct 5, 1999
- Shinagawa Refractories Co., Ltd.
- Yukitoshi Kubota
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Alumina-spinel type monolithic refractories
- Patent number 5,316,571
- Issue date May 31, 1994
- Shinagawa Refractories Co., Ltd.
- Takashi Yamamura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for gunning a refractory composition
- Patent number 4,981,731
- Issue date Jan 1, 1991
- Shinagawa Refractories, Co., Ltd.
- Eiichi Yorita
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES