Tsutomu Shishikura

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sintered alumina article with high flexural strength and process fo...
- Patent number 4,996,177
- Issue date Feb 26, 1991
- Sumitomo Cement Co., Ltd.
- Shigehide Takagi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES