Zenjiro Nakai

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Composite substrates and their production
- Patent number 5,369,067
- Issue date Nov 29, 1994
- Chichibu Cement Co., Ltd.
- Morhudun G. M. U. Ismail
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for making mullite whiskers using hydrofluoric acid
- Patent number 5,229,093
- Issue date Jul 20, 1993
- Chichibu Cement Co., Ltd.
- M. G. M. U. Ismail
- C30 - CRYSTAL GROWTH
Information Patent Grant
Sol-gel method for making composite mullite/cordierite ceramics
- Patent number 5,045,514
- Issue date Sep 3, 1991
- Chichibu Cement Co., Ltd.
- M. G. M. U. Ismail
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Hydrothermal process for preparing zirconia-alumina base ultra-fine...
- Patent number 4,769,351
- Issue date Sep 6, 1988
- Chichibu Cement Co., Ltd.
- Shigeyuki Soumiya
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES