Hiroshi Ogawa

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing α-alumina powder
- Patent number 6,524,549
- Issue date Feb 25, 2003
- Sumitomo Chemical Co., Ltd.
- Masahide Mohri
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for producing alpha-alumina powder
- Patent number 6,106,800
- Issue date Aug 22, 2000
- Sumitomo Chemical Co., Ltd.
- Masahide Mohri
- C01 - INORGANIC CHEMISTRY