Masaki Watanabe

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of high alpha-type silicon nitride powder
- Patent number 5,456,896
- Issue date Oct 10, 1995
- Shin-Etsu Chemical Co., Ltd.
- Hirofumi Fukuoka
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Preparation of high .alpha.-type silicon nitride powder
- Patent number 5,441,694
- Issue date Aug 15, 1995
- Shin-Etsu Chemical Co., Ltd.
- Masanori Fukuhira
- C01 - INORGANIC CHEMISTRY