Harumi Aiba

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Komaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Alumina sintered body
- Patent number 5,279,886
- Issue date Jan 18, 1994
- NGK Spark Plug Co., Ltd.
- Takeshi Kawai
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES