Kouichi Sueyoshi

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Kariya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for making silicon nitride powder
- Patent number 4,986,972
- Issue date Jan 22, 1991
- Toshiba Ceramics Co., Ltd.
- Toshitsuga Ishii
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for making silicon nitride whisker
- Patent number 4,985,224
- Issue date Jan 15, 1991
- Toshiba Ceramics Co., Ltd.
- Isao Imai
- C30 - CRYSTAL GROWTH
Information Patent Grant
Process for preparing metal nitride powder
- Patent number 4,975,260
- Issue date Dec 4, 1990
- Toshiba Ceramics Co., Ltd.
- Isao Imai
- C01 - INORGANIC CHEMISTRY